I have a 2013 Mercedes Benz c300 drove around with no sound for almost 3 years! It stopped working all of a sudden the screen turned on everything you can see the radio stations AM/FM satellite, but you couldn’t hear anything. You can pair it to a Bluetooth. I could call out, but I couldn’t hear anybody on the other side. They could hear me and it was frustrating not knowing what was going on so When it happened I took it to the dealership and they told me that the amp was out basically, the exact same thing that you posted on your video happened to my vehicle THANK YOU for sharing this video it fixed my issue. I bought the fiber optic loop and went ahead and bypassed it BAM 💥 SOUND was restored. Dealer ship wanted to scam me telling me that the amp was out bs ! You keep doing what you do you are awesome 👏
Great video - thanks for sharing your problem solving with us. I will order a jumper and go through the process. One guy on a just answer site had the same problem. The connector pins to the media module had CORROSION on them - he cleaned up the pins and it’s working again. You may like to check the pins for corrosion on yours (sounds like a very common Mercedes problem).
@@Fwerks.1592 There is no power in the media interface module. I guess. But, there are aux and ipod (old) connectors and I don't need them. The Bluetooth works fine.
@@zack33461 sorry for the delay! Here it is! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
I have the same model car but my issue is with the CD player, not the radio. The CD player was working fine and then one day it stopped working. I also cannot eject any of the CD's (it holds 6 CD's). If I select CD, it says "unavailable driver". Do you have any suggestions on how to fix this?? I've been trying to fix it for months and there is nothing online on how to resolve this. THANK YOU!!
Sounds like your cd driver is faulty. You definitely need a new head unit, since the cd is “ built” as one unit. There is no way around this. Also I want to remind you, that most communications module controls the Xm, weather band, radio, Cd and The Bluetooth. When I was playing with this module those are all the sources I didn’t get Audio from or the functions would simply not work.
@Fwerks.1892 i just got that same issue today!! So frustrated! I know this is a super old video, but do you remember if the radio needle was stuck on one station? The wheel button by my shifter works for everything except changing the station. Ive also got no sound from the radio and bluetooth doesnt work now either. :( Does that sound like the same problem you had?
Do you have a video of undoing the media control module from the bracket if not where can I get that jumper from I have the same exact car with the same exact problem
A video I don’t but if you have any trouble removing you can always email me and we can go from there. Also here is a link to a pair of jumpers. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
Hi, i found your video very useful. Unfortunately i can't get a jumper, unless i ship from US. However, a jumper simply means connecting two wires together right? Like getting a single wire with has two mouth, akd connecting them to the + and - right? And what type of jumper did you use? Name model etc
That is correct! With fiber optic there is no negative or positive wires. Light has to travel through the wire and go back around to the other wire. This is called a loop, once that loop is interrupted, then you have a ring break. Here is a link to where I got mine. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=sr_1_1_sspa?crid=7CVVYTTLULP4&keywords=mercedes+fiber+optic+loop&qid=1706220008&sprefix=mercedes+fibe%2Caps%2C83&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
Hello! First thank you for the helpful video! Second, I have 2012 c250 with H/K sound system. I have this exact issue except my issue happened after having to replace the passenger side CAN bus distributor board because water got into the car from the sunroof drains being clogged. I replaced the board and the car starts and everything is back to normal but the audio. I checked all the fuses. I did see water dripping from the glove box at one point. Do you think it’s the same issue ? Also where can I get that jumper wire from ? Didn’t see the link in the description
It be be an issue with the module. Here is the link to the bypass/ jumper cable! Hope this works! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU%3D
@@moeobaidat4101 good stuff!!! Now if you really want that fixed. You would need to order a new most communication module and that will have to be coded to work with the vehicle that’s the only way it will work.
Wouldn't be able to pin point exactly where it might be. You can remove the head unit and follow the ( thick double orange wiring). Usually that wire will run towards the passenger side and under the trim near the footwell. That wire will lead you to the module.
Excellent video, very helpful to start my troubleshooting. I have the same issue, no audio from FM, AM, BT etc. in my 2013 C300. Does the looper work around fix the audio for BT as well or would I need a new interface module in order to get BT back and functioning?
Good morning! Here is the link where you can get a pair! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU%3D
Here is a link to the item. I do apologize for the delay! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=693466448350&hvpos=&hvnetw=g&hvrand=1904832124524602913&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021770&hvtargid=pla-738507877570&psc=1&mcid=f4070e6f213f389c92ca42449bdceef6
This video is great 👏 I have the same issue with my Mercedes Benz c200 w204 2008 model but I couldn’t locate that module. I have removed glovebox still couldn’t see it. Do you have any idea where it could be ? I’ve taken to mechanic and they say stereo need to be replace I went to wrecker found exactly same one still didn’t work. I really need help Thanks
Good morning! That's definitely European model Correct? I would look on the MB website and search and see if that model has that module or it's built into the head unit. Sorry I'm not able to pull your specific model since here in the US we only have C300 for that year.
I have a 2011 /S204 /Mercedes Benz c350 with HK music. When I first start the car in the morning, the sound in the car is wonderful and it is there until the moment I turn off the car - 5 minutes later or an hour - it doesn't matter, but the sound disappears. After a few hours when the car cools down / or the next morning the sound appears again and disappears the moment I turn off the car. Could you give me some advice on what this problem is?
@@NikolayKostov-q3h I wish I can give you some advice. Unfortunately I cannot without having the vehicle properly scanned. You might have a “ ring break”, faulty amp, a fault in the most communications module or t it can be a loose wire / connection behind the radio.
Hi, I have a question I have a C300 and my AM and FM radio reception is very poor, specially AM. What can I do. It did not use to be like this when I bought the car.
Man, I need help with my 2012 C250. I can not find where the auxiliary battery is located. I have torn the car apart looking for it. I looked in the trunk including the side panels and spare tire. I looked under the front passenger side floor board kick panel, and the driver side dash without finding anything that looks like a battery. I would greatly appreciate any help.
Here are the main locations where the batt can be. Under passenger seat. Behind the driver seat . Trunk- near the fuse box. Left side of the dashboard , behind the side cover of the dash. If it’s not found in any of these locations then chances are, you do not have one equipped on this vehicle.
@@Fwerks.1592 Well, I found out that there is no secondary battery in my 2012 C250 blue efficiency Mercedes. I also verified it by calling my dealer and letting them look it up using the Vin Number. I hope this helps someone in the future.
@@davidtullos2067 awesome! I had a feeling the c class did not have an aux battery. I ripped one apart and did not see any aux battery anywhere! I’m glad you found the issue to your Mercedes!
@@queenofstyle8979 realistic you do not need to buy a new module. I tested the old module and the new module using the fiber optic loop bypass and both gave me sound.
I have a 2008 c300 with the flip out screen head unit. My issue is the radio turn on when I start the car. Ur every 20 seconds or so it reboots itself. It turns off and back on every 20 seconds. What is causing this. Any idea? If it was a fuse I believe I wouldn’t turn on at all. But it does the issue is radio and screen turn off and on every 20 seconds. Any help is appreciated thanks
I had an issue with a 2009 ml350 where it had the same issue but reset much quicker. Internally if you have the same kind of radio there is an optical interface board, when I replaced it my radio started working again. It is one of the only few boards you can replace in the radio to fix the issue, without having to reprogram or remove an anti theft warning. It does require another radio for parts, but I would try it and see if it works.
@@Bruseyy haven’t gotten this fixed and it’s been annoying ever since. I think it might have something to do with the Navi system because my gps location is no where near where I’m at when I’m driving. I thought maybe this trips out the system and reboots itself. I really haven’t looked into it cuz I don’t even know where to start
I bought the finer optic loop. If you’re interested, here is a link www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
The light travels though the fiber optic. If there is no light that means you have a problem in the Circuit. The fiber optic basically bypasses any bad module and helps complete the circuit. In order for the audio to work the light has to travel through all 5 modules and it goes around in a loop. Hope this makes sense.
@@Fwerks.1592 Thank you. My car has no audio + I cannot adjust the volume. Do you know if a bad amp could prevent the system from adjusting the volume, or would the volume still show up on the screen if the amp was bad?
Thanks!!! Here is a link on Amazon. Hope this helps you out! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
Sorry for the delay. Here is a link where you can buy a cable. www.ebay.com/itm/315257972462?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1H0u3gALESRuGunw2aGJDmQ45&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=315257972462&targetid=2320093655185&device=c&mktype=pla&googleloc=9021570&poi=&campaignid=21222258394&mkgroupid=164713660992&rlsatarget=pla-2320093655185&abcId=9408285&merchantid=5303560895&gad_source=1&gclid=CjwKCAjwl6-3BhBWEiwApN6_klD9LqMZ3LGR3G8MUSb-hHLje3r881DhyBf_slcvkB5tDXoik-J_eBoCGokQAvD_BwE
Hi there, this video is very informative. I own a 2013 C300 and have the same issue where the speakers do not work. I'm not handy and wanted to know if you would be able to fix this for my car. I live in Maryland and am wondering where you are located. or any mechanic who could fix this for me in the Maryland area!
You would have to match up the parts numbers from your most communications module or look for one that’s exactly your make, model and year. It will usually list which car the module came out of.
Hi, we ha a 2015 B 250E elecrtic drive mercedes car. We have an issue with head unit. We can not start manually either automatically. The fuse is ok - 12woltage is fine 2times. Do you have any idea what is the problem and how to fix it? Or shall we buy spare part if so where can we buy?
I have the NTG 4.5, not sure if this is the same. Mine had no sound, had 4 codes, each channel open or short to ground. Was a IC chip shorted to ground in the speaker output of the head unit.
Yo broski, I don’t have a jumper yet, ima order rn, but how can I test the amp to see if that’s the bad part? I took to audio place today and showed them your video but they don’t have jumpers and they want me to buy a 900 amp replacement
You would have to disconnect the fiber optic that plugs into your amp. Connect the jumper to the fiber optic plug( not the amp). Once you jump it an if you hear sound come back, then your amp is the problem.
@@Fwerks.1592 appreciate the response broskii I’m picking up jumper right now and will let you know! If the amp isn’t the problem, does the w205 (2017 c300) have that module under the glovebox like you showed in this video?
Bro I took it back to the shop with the bypass and the dude swore up and down it was the amp and he refused to check the amp using bypass. I took it home and figured out how to get the trunk lining out and checked amp. ITS NOT THE AMP
@@Idontclockout I’m sorry for the delayed response. Move in the the Sirius Xm module and jump that one too. As far the most communication, since it’s a newer year I’m not certain if it will be behind the glove box. It can also be built into the head unit.
You can get them from Ebay or Amazon. Here is a link to the bypass/ fiber optic wire. www.ebay.com/itm/133249696447?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1k4JiZPuATaqtlxGgyN-8DQ93&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=133249696447&targetid=1644837434523&device=c&mktype=pla&googleloc=1016367&poi=&campaignid=20125739985&mkgroupid=149128855676&rlsatarget=pla-1644837434523&abcId=9312975&merchantid=6296724&gclid=Cj0KCQjwj_ajBhCqARIsAA37s0yIaekYLXgGg0qof3t_tc8meKAvSgOA07bXwIwrsTvZzz6fTP2bv5YaAjKjEALw_wcB
Most likely yes. The most communication module controls the bluetooth audi, Aux & the volume. Remember there is a ring break, if you replace the head unit. You will still have that ring break, the loop has to be closed for everything to work properly.
I have the same issue, thank you!!! going to try your fix. Same codes and everything. With the loop did the backup camera become active again? Thanks bro
Sorry for the dely. Here is a link www.ebay.com/itm/315257972462?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1H0u3gALESRuGunw2aGJDmQ45&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=315257972462&targetid=2320093655185&device=c&mktype=pla&googleloc=9021570&poi=&campaignid=21222258394&mkgroupid=164713660992&rlsatarget=pla-2320093655185&abcId=9408285&merchantid=5303560895&gad_source=1&gclid=CjwKCAjwl6-3BhBWEiwApN6_klD9LqMZ3LGR3G8MUSb-hHLje3r881DhyBf_slcvkB5tDXoik-J_eBoCGokQAvD_BwE
Here is the link to the product. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=6611393766528978421&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1016367&hvtargid=pla-738507877570&psc=1&mcid=f4070e6f213f389c92ca42449bdceef6&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=6611393766528978421&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1016367&hvtargid=pla-738507877570&gclid=Cj0KCQiAwP6sBhDAARIsAPfK_wYPZLFaVl8eV8UzqCAn-xj686o2oDqXQiv6QIXVb6RRWfxpyxSgapkaAlSdEALw_wcB
Here it is. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=17341479303174168107&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021494&hvtargid=pla-738507877570&psc=1&mcid=71bec4198b0238d8bc77c05adea497ce&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=17341479303174168107&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021494&hvtargid=pla-738507877570&gclid=CjwKCAiAhJWsBhAaEiwAmrNyq7vB2DKKP0EqrvDzfdG3rkMcZih3s-koG_OXSptBq9k3-d2nyd6VSRoCo3kQAvD_BwE
Was there an issue with voltage getting to the module via the wake up line pin or the power pin? Noticed the code for the anti theft pin, which im assuming is the wake up line?
I got this scan tool from ECS Tuning website I believe at the time it was around $1,300. As far as coding this module, I was not able to code it with this specific scanner. There is another scanner on the website that is able to program and do scn coding!
Sounds like you have issues with the speakers, might also include your amplifier. I would def get some codes pull for the Command unit and infotainment!
Hello, I have a problem and I’m hoping you can help me. I have a 2011 C300 and my AUX option won’t work, I get no sound. I can hear the FM radio, AM, Weather as well as the CD, but the only one that doesn’t work is the AUX. Do you happen to know what I can do to fix that? Thank you in advance.
@@Fwerks.1592 yes, the car came with the old school iPod connection 16 pin I believe and a jack both attached to one wire that came with the car. The AUX was working but I think something in the MOST engineering menu was changed but not sure if that was the cause because like I mentioned everything else I can hear fine. I was thinking it’s the MMI cable but I bought a couple and none of them worked so maybe it’s the one inside the one that was replaced in the video.
@@floangg7084 definitely sounds like the most communications module took a crap. That interface controls, the fm, am, Bluetooth, weather band, aux, cd!
@@loraine5240 sorry for the delay, I’d have to check the c300 I have now and see what’s going on. Most definitely I can tell you that sound travels through the fiber optics, that run to the interface module, also the the infotainments in the center, Bluetooth, cd, am, fm and weather band runs to the module. If anything starts acting up it should be the module going bad.
So for me, my audio works but if I turn up the volume at a certain point it causes the sound to go away. Have to keep the car off for a little while before it comes back. Any idea how I can fix that?
Here is a link to the bypass/ fiber optic loop wire. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=7694772026372692605&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&psc=1&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=7694772026372692605&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570
I bought a 2012 E350 off the auction with the same exact problem when I popped my trunk there was no serious satellite module. Like someone took out completely. Is that the problem then for no audio because once I hooked up the one ordered it didn’t change anything
Here is a link where you can order the jumper fiber optic loop. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=5153541858392821430&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&psc=1&mcid=71bec4198b0238d8bc77c05adea497ce&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=5153541858392821430&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&gclid=Cj0KCQjwq86wBhDiARIsAJhuphms84PJEuxTqEQGDWh-cyJtFGKKmGByOZr7XQbCqUFqreBfcmRnlzIaAriLEALw_wcB
I’m sorry for the delay! The Audio system runs in a loop! That means the light has to pass through the fiber optics and go through each module to complete the loop. So when you have a most communication issue, the ring becomes broken and the communication path becomes unusable. So here is how the bypass/ jumper comes into play. In order to confirm if a module is faulty or not you can use the bypass and plug it into the suspected bad module and you should hear sound again if that’s the problem. Once you found the break in the Most loop, you can use the fiber optic jumper / bypass connecter . What this does is basically to remove the faulty module from the network and to replace it with a connecter that “CLOSES” the loop so the light signal can continue its path. Hope this makes sense?
@@Fwerks.1592 thats great brither thank you do i need to take out the stereo unit to get to that module?? Im gonna start with the ones in the back as they seem more accesbile leaving the front one for the emd
@@avilaomar10 sounds good! Once you check all the ones in the back move to the one under the glove compartment box. Leave the head radio unit in there for now till you confirm if the module under the glove box is good.
Tengo un problema con un estéreo de un w212, se prende y se apaga solo en todo momento. A la vez los parlantes no suenan y hacen ruido como si golpearas un micrófono. Si puedes guiarme me ayudaría muchísimo colega.
Good Morning! the cause of the damage was, the owner removed the top gasket to the windshield. Water then was coming inside the interior every time it rained or went to a carwash.
Hello everyone please I need your help with my sound problem on my c350 w204 2012. The radio turns on but the sound comes on for a few seconds and then it cuts off
You have to start testing all these modules individually. I show everything on this video . You will need a bypass fiber optic wire. You can get those on Amazon or Ebay.
Same exact problem here but on my 2010 E550 Coupe. Stopped getting sound & then it worked again randomly for 2 days straight then gave up again on the weekend lol so When I scan the car with Carly I only get 2 fault codes: 1.The wake-up line has a short circuit to ground. -Stored. 2.MOST communication has a malfunction (MOST master reporting ring break)- Current & stored. My phone still connects via wireless bluetooth however when I try plugging it with the iPod connection in the glovebox it won’t read the signal so I’m thinking it’s the media interface module?? The fiber optic loop came in today so hopefully tomorrow I can confirm this issue with the guide you provided 🙏🏽 & hope this solves it! Sucks this module is not plug & play , other forums said it is on the e class but guess we’ll have to see lol thanks again for the guide & if you have any advice or recommendations that’d be appreciated thanks!
@@Fwerks.1592 yes the same exact module is faulty, plugged the fiber loop & instantly got sound back! Still connects via Bluetooth so I left at is as for temporary solution until I order a new module 😂 probably next month I’ll deal with it as long as I can play my music is fine. But once I connect the new module i’ll let you know if it needs to be reprogrammed or not on the e class ! Thanks again brother you the man 💪🏽
@@alerodrigvez4956, good stuff!!!! Nothing feels better than getting your music back lol. Yes! Kinda curious to see if the module doesn’t need to be programmed!
@@Fwerks.1592 Well I found out an easier way to get it back to work, including all Audio option and Navi. without taking the dash apart or taking out the radio. My Wife's Benz is a 2013 C300 sport 4Matic
@@Fwerks.1592I replied already with a link, YT must have removed it, anyway the jumper set I got was from Amazon for $9 1 male and 1 female>>> Passenger side at the footwell>>> fold the carpet back>>> remove the black Styrofoam piece. on the right all the way back , close to the door you will see the fiber optic connection, disconnect and plug both of them in, one in each. make sure radio is off before you disconnect. ....Turn radio back on, thats it
If you look underneath, the module is held with two tabs. You will need a flat head screwdriver to press the tabs down. Once you have both pressed down you can pop it out of place.
I’m pretty sure you still have to program it. I’ve looked for the exact same part number and it was impossible to find. I used a cross reference part number from the exact same year, model and trim level. I had another guy emailed me about the same thing and turns out he had to get the module program even with matching numbers.
Definitely mentioned it to the owner and he wasn’t really interested! The seats though, I’ve seen it’s a common thing they start to deteriorating. I already came across four C300 with bad front seats!
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
I have a 2013 Mercedes Benz c300 drove around with no sound for almost 3 years! It stopped working all of a sudden the screen turned on everything you can see the radio stations AM/FM satellite, but you couldn’t hear anything. You can pair it to a Bluetooth. I could call out, but I couldn’t hear anybody on the other side. They could hear me and it was frustrating not knowing what was going on so When it happened I took it to the dealership and they told me that the amp was out basically, the exact same thing that you posted on your video happened to my vehicle THANK YOU for sharing this video it fixed my issue. I bought the fiber optic loop and went ahead and bypassed it BAM 💥 SOUND was restored. Dealer ship wanted to scam me telling me that the amp was out bs ! You keep doing what you do you are awesome 👏
@@sandraguerrero775 I’m glad I was able to help with this video!
I have to say this video you did helped so many of us out there DIY 's who cannot afford to pay the dealer ..my name is Joey thanks for the help ...
Great video - thanks for sharing your problem solving with us.
I will order a jumper and go through the process.
One guy on a just answer site had the same problem. The connector pins to the media module had CORROSION on them - he cleaned up the pins and it’s working again.
You may like to check the pins for corrosion on yours (sounds like a very common Mercedes problem).
Yeah Brother. I have fixed my no-sound issue based on your video. Thanks. 2011 E350.
Awesome!! What went bad in your case?
@@Fwerks.1592 There is no power in the media interface module. I guess. But, there are aux and ipod (old) connectors and I don't need them. The Bluetooth works fine.
Can you share the Amazon link to purchase the bypass cable? I have a 2014 and started having this issue this morning!
@@zack33461 sorry for the delay! Here it is! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
I have the same model car but my issue is with the CD player, not the radio. The CD player was working fine and then one day it stopped working. I also cannot eject any of the CD's (it holds 6 CD's). If I select CD, it says "unavailable driver". Do you have any suggestions on how to fix this?? I've been trying to fix it for months and there is nothing online on how to resolve this. THANK YOU!!
Sounds like your cd driver is faulty. You definitely need a new head unit, since the cd is “ built” as one unit. There is no way around this. Also I want to remind you, that most communications module controls the Xm, weather band, radio, Cd and The Bluetooth. When I was playing with this module those are all the sources I didn’t get Audio from or the functions would simply not work.
@Fwerks.1892 i just got that same issue today!! So frustrated!
I know this is a super old video, but do you remember if the radio needle was stuck on one station? The wheel button by my shifter works for everything except changing the station. Ive also got no sound from the radio and bluetooth doesnt work now either. :(
Does that sound like the same problem you had?
The needle to the radio was working for me, the only thing I didn’t have was no sound. The radio, Bluetooth and cd player had no audio.
@@Fwerks.1592 hmmm strange! I went outside to take a video of what its doing and now its suddenly working again! Probably not for long though lol
Do you have a video of undoing the media control module from the bracket if not where can I get that jumper from I have the same exact car with the same exact problem
A video I don’t but if you have any trouble removing you can always email me and we can go from there. Also here is a link to a pair of jumpers. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
@@Fwerks.1592 sounds great thank you
How can I get your email so I could figure this out lol
@@neosheturner3281996 it’s Foreignwerks15@gmail.com I’m always looking at my emails!
@@Fwerks.1592 sound perfect thanks so much
Hi, i found your video very useful. Unfortunately i can't get a jumper, unless i ship from US. However, a jumper simply means connecting two wires together right? Like getting a single wire with has two mouth, akd connecting them to the + and - right? And what type of jumper did you use? Name model etc
That is correct! With fiber optic there is no negative or positive wires. Light has to travel through the wire and go back around to the other wire. This is called a loop, once that loop is interrupted, then you have a ring break. Here is a link to where I got mine.
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=sr_1_1_sspa?crid=7CVVYTTLULP4&keywords=mercedes+fiber+optic+loop&qid=1706220008&sprefix=mercedes+fibe%2Caps%2C83&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
I have a 09 c300 and I removed the glove box however the module was not there. Anyone knows of it being in a different location on this car?
I’m having the same issue, I have a 09 c300. Can’t find the module anywhere
Same
Same. have you found it yet?
Nothing?? Same
Hello!
First thank you for the helpful video!
Second, I have 2012 c250 with H/K sound system. I have this exact issue except my issue happened after having to replace the passenger side CAN bus distributor board because water got into the car from the sunroof drains being clogged. I replaced the board and the car starts and everything is back to normal but the audio. I checked all the fuses. I did see water dripping from the glove box at one point.
Do you think it’s the same issue ?
Also where can I get that jumper wire from ? Didn’t see the link in the description
It be be an issue with the module. Here is the link to the bypass/ jumper cable! Hope this works!
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU%3D
@@Fwerks.1592 I ordered it! I’ll let you know if that works.
@@moeobaidat4101 sure thing, keep me posted!
@@Fwerks.1592worked. Thank you. Left it jumped.
@@moeobaidat4101 good stuff!!! Now if you really want that fixed. You would need to order a new most communication module and that will have to be coded to work with the vehicle that’s the only way it will work.
I have the exact same issue on my 09 c300 but I can’t find that module as it wasn’t under the glove box, any idea where it might be???
Wouldn't be able to pin point exactly where it might be. You can remove the head unit and follow the ( thick double orange wiring). Usually that wire will run towards the passenger side and under the trim near the footwell. That wire will lead you to the module.
Excellent video, very helpful to start my troubleshooting. I have the same issue, no audio from FM, AM, BT etc. in my 2013 C300. Does the looper work around fix the audio for BT as well or would I need a new interface module in order to get BT back and functioning?
That loop should restore the BT with no issues. You won’t need to replace the interface module.
@@Fwerks.1592 that is great news, I've gone ahead and ordered the loop. Thank you for the quality video and very quick reply! Cheers
@@BarrettMorse-ox1sb anytime!!!!
Fix worked! Bluetooth and all, couldn't be more thrilled
@@BarrettMorse-ox1sb now that’s what I like to hear!!! 🙏
I have the same make & model I’m having the same problem where can I find the jump cable you used to fix the problem
Good morning! Here is the link where you can get a pair! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_1_sspa?keywords=mercedes+fiber+optic+bypass&qid=1677636183&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSUlDODdQSkFDMzAzJmVuY3J5cHRlZElkPUEwODQyNTM2QU8yVlhEMURCOVlOJmVuY3J5cHRlZEFkSWQ9QTAzMzU4MDUySkpPNVZLVFFHTllYJndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU%3D
Hey bro what’s the jumper thing called? You forgot to put the link for it ,please let me know
Here is a link to the item. I do apologize for the delay!
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=693466448350&hvpos=&hvnetw=g&hvrand=1904832124524602913&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021770&hvtargid=pla-738507877570&psc=1&mcid=f4070e6f213f389c92ca42449bdceef6
@@Fwerks.1592 just one will get it back working right?
@@OmarThalji-e6f yes, you only need one fiber optic plug.
This video is great 👏 I have the same issue with my Mercedes Benz c200 w204 2008 model but I couldn’t locate that module. I have removed glovebox still couldn’t see it. Do you have any idea where it could be ? I’ve taken to mechanic and they say stereo need to be replace I went to wrecker found exactly same one still didn’t work. I really need help
Thanks
Good morning! That's definitely European model Correct? I would look on the MB website and search and see if that model has that module or it's built into the head unit. Sorry I'm not able to pull your specific model since here in the US we only have C300 for that year.
Hey mate, did you ever get a fix with this?
I have a 2011 /S204 /Mercedes Benz c350 with HK music. When I first start the car in the morning, the sound in the car is wonderful and it is there until the moment I turn off the car - 5 minutes later or an hour - it doesn't matter, but the sound disappears. After a few hours when the car cools down / or the next morning the sound appears again and disappears the moment I turn off the car. Could you give me some advice on what this problem is?
@@NikolayKostov-q3h I wish I can give you some advice. Unfortunately I cannot without having the vehicle properly scanned. You might have a “ ring break”, faulty amp, a fault in the most communications module or t it can be a loose wire / connection behind the radio.
Hi, I have a question I have a C300 and my AM and FM radio reception is very poor, specially AM. What can I do. It did not use to be like this when I bought the car.
Sounds like you may have an antenna issue! Pull out the radio and check if the cable for the antenna is plugged in properly.
Man, I need help with my 2012 C250. I can not find where the auxiliary battery is located. I have torn the car apart looking for it. I looked in the trunk including the side panels and spare tire. I looked under the front passenger side floor board kick panel, and the driver side dash without finding anything that looks like a battery. I would greatly appreciate any help.
Here are the main locations where the batt can be.
Under passenger seat.
Behind the driver seat .
Trunk- near the fuse box.
Left side of the dashboard , behind the side cover of the dash.
If it’s not found in any of these locations then chances are, you do not have one equipped on this vehicle.
@Foreign Werks So many thanks and I plan to look tomorrow. I will post the location here for future reference.
@@davidtullos2067 keep me posted!
@@Fwerks.1592 Well, I found out that there is no secondary battery in my 2012 C250 blue efficiency Mercedes. I also verified it by calling my dealer and letting them look it up using the Vin Number. I hope this helps someone in the future.
@@davidtullos2067 awesome! I had a feeling the c class did not have an aux battery. I ripped one apart and did not see any aux battery anywhere! I’m glad you found the issue to your Mercedes!
When you plug the jumper in do you leave the electronic plugs in or unplugged from the module? Thank you in advance
Leave everything plugged in! If you leave the other black plug disconnected, then you will not get sound!
Thank you brother, I now have sound! Thank you so much! I really appreciate this!@@Fwerks.1592
I have the same problem..so if my interface control module is bad...i dont need to buy a new one? I just need the fiber optic loop?
@@queenofstyle8979 realistic you do not need to buy a new module. I tested the old module and the new module using the fiber optic loop bypass and both gave me sound.
I have a 2008 c300 with the flip out screen head unit. My issue is the radio turn on when I start the car. Ur every 20 seconds or so it reboots itself. It turns off and back on every 20 seconds. What is causing this. Any idea? If it was a fuse I believe I wouldn’t turn on at all. But it does the issue is radio and screen turn off and on every 20 seconds. Any help is appreciated thanks
Sounds like your head unit its on its way out. A bad amp or most communications module wont be the issue here.
I had an issue with a 2009 ml350 where it had the same issue but reset much quicker. Internally if you have the same kind of radio there is an optical interface board, when I replaced it my radio started working again. It is one of the only few boards you can replace in the radio to fix the issue, without having to reprogram or remove an anti theft warning. It does require another radio for parts, but I would try it and see if it works.
@@Bruseyy haven’t gotten this fixed and it’s been annoying ever since. I think it might have something to do with the Navi system because my gps location is no where near where I’m at when I’m driving. I thought maybe this trips out the system and reboots itself. I really haven’t looked into it cuz I don’t even know where to start
What was used to make that jumper? My radio sound only works when the car has been sitting for a while
But if I turn the car off I won’t get sound
I bought the finer optic loop. If you’re interested, here is a link www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
What exactly am I looking for with the jumper? If there is a light, that is the problem module, or the other way around?
The light travels though the fiber optic. If there is no light that means you have a problem in the Circuit. The fiber optic basically bypasses any bad module and helps complete the circuit. In order for the audio to work the light has to travel through all 5 modules and it goes around in a loop. Hope this makes sense.
@@Fwerks.1592 Thank you. My car has no audio + I cannot adjust the volume. Do you know if a bad amp could prevent the system from adjusting the volume, or would the volume still show up on the screen if the amp was bad?
Can you share the link to buy the jumper fiber adapter. Great video, by the way 👏
Thanks!!! Here is a link on Amazon. Hope this helps you out! www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=mp_s_a_1_4?dib=eyJ2IjoiMSJ9.KTE3ltAqGK4Vqz7ATs6Xbv8c4ug08elrZsJoembNoLxuCfLbTUTZdQEfxsClGefOL8eQC1OfwTx01bZ1zVKKyc9Xu4KEN-sCmAEcx9APnUj8eyFO0FykKs3p-UcygD_mCMQArQ7PvdGq09B8VQJBsWqHQKl0LJ4HYF3nca4toB6kfIpLLsc3MfHRcUDt3GA9iPF6ZzvDUSsxB_0_JjKs_Q.KZfPs_Fypr6CjjKalkSIVg6A57xCYbRkzcaDdmGt5zI&dib_tag=se&keywords=mercedes+fiber+optic+bypass&qid=1711505898&sr=8-4
How do you buy one of those jumpers?
Sorry for the delay. Here is a link where you can buy a cable.
www.ebay.com/itm/315257972462?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1H0u3gALESRuGunw2aGJDmQ45&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=315257972462&targetid=2320093655185&device=c&mktype=pla&googleloc=9021570&poi=&campaignid=21222258394&mkgroupid=164713660992&rlsatarget=pla-2320093655185&abcId=9408285&merchantid=5303560895&gad_source=1&gclid=CjwKCAjwl6-3BhBWEiwApN6_klD9LqMZ3LGR3G8MUSb-hHLje3r881DhyBf_slcvkB5tDXoik-J_eBoCGokQAvD_BwE
Hi there, this video is very informative. I own a 2013 C300 and have the same issue where the speakers do not work. I'm not handy and wanted to know if you would be able to fix this for my car. I live in Maryland and am wondering where you are located. or any mechanic who could fix this for me in the Maryland area!
I wouldn't mind taking a look, but I live In Chicago, IL.
Thank you! Is ther any mechanic in Maryland who could check on this issue for me?
@@Fwerks.1592I’m in north west Indiana. Would you be willing to do this for me?
@ sorry for the delayed response!! Are you willing to bring it to me? I would need the car for at least 2-3 days ?
I have a 2014 C250 with the same problem. MB dealer sell the module at about 900.$.
What and how could I order this on ebay
You would have to match up the parts numbers from your most communications module or look for one that’s exactly your make, model and year. It will usually list which car the module came out of.
Hi, we ha a 2015 B 250E elecrtic drive mercedes car. We have an issue with head unit. We can not start manually either automatically. The fuse is ok - 12woltage is fine 2times. Do you have any idea what is the problem and how to fix it? Or shall we buy spare part if so where can we buy?
Hey, for pre fl is the same ?
It should be the same. Drop the glove compartment box to expose those fiber optic wires.
I have the NTG 4.5, not sure if this is the same. Mine had no sound, had 4 codes, each channel open or short to ground. Was a IC chip shorted to ground in the speaker output of the head unit.
Where can i get the jumper
Hey Brother question? 2014 C350 my anti theft sign is on screen can’t get rid of it
That’s definitely another issue. Have you got the vehicle scanned? Any codes?
Yo broski, I don’t have a jumper yet, ima order rn, but how can I test the amp to see if that’s the bad part? I took to audio place today and showed them your video but they don’t have jumpers and they want me to buy a 900 amp replacement
You would have to disconnect the fiber optic that plugs into your amp. Connect the jumper to the fiber optic plug( not the amp). Once you jump it an if you hear sound come back, then your amp is the problem.
@@Fwerks.1592 appreciate the response broskii I’m picking up jumper right now and will let you know! If the amp isn’t the problem, does the w205 (2017 c300) have that module under the glovebox like you showed in this video?
Bro I took it back to the shop with the bypass and the dude swore up and down it was the amp and he refused to check the amp using bypass. I took it home and figured out how to get the trunk lining out and checked amp. ITS NOT THE AMP
Just to troubleshoot/ and or give your honest opinion
@@Idontclockout I’m sorry for the delayed response. Move in the the Sirius Xm module and jump that one too. As far the most communication, since it’s a newer year I’m not certain if it will be behind the glove box. It can also be built into the head unit.
Where do you get a jumper from
You can get them from Ebay or Amazon. Here is a link to the bypass/ fiber optic wire.
www.ebay.com/itm/133249696447?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1k4JiZPuATaqtlxGgyN-8DQ93&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=133249696447&targetid=1644837434523&device=c&mktype=pla&googleloc=1016367&poi=&campaignid=20125739985&mkgroupid=149128855676&rlsatarget=pla-1644837434523&abcId=9312975&merchantid=6296724&gclid=Cj0KCQjwj_ajBhCqARIsAA37s0yIaekYLXgGg0qof3t_tc8meKAvSgOA07bXwIwrsTvZzz6fTP2bv5YaAjKjEALw_wcB
I got a c300 2008 i can hear the audio but screen don’t start up it’s pitch black. Any idea what’s wrong ?
Sounds like you may have an issue with the amplifier or the actual radio unit. Have you tried bypassing the amp?
Having this same issue but was thinking of swapping the original head unit with an after market unit. Do you think I’d still have the same problem?
Most likely yes. The most communication module controls the bluetooth audi, Aux & the volume. Remember there is a ring break, if you replace the head unit. You will still have that ring break, the loop has to be closed for everything to work properly.
I’m having same problem but it’s a 2015 c300 plz help me with good advice
Have you tested the most communications module? Get a pair of jumper / bypass fiber optic wires from Amazon.
I have the same issue, thank you!!! going to try your fix. Same codes and everything. With the loop did the backup camera become active again? Thanks bro
Anytime brother! That should also help restore the back up camera. Make sure to reset all the codes after you are done!
@@Fwerks.1592 thanks man, will do hopefully should get this done in the next couple of days when the Loop comes. Thanks again.
Where do you get the cable
Sorry for the dely. Here is a link
www.ebay.com/itm/315257972462?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1H0u3gALESRuGunw2aGJDmQ45&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=315257972462&targetid=2320093655185&device=c&mktype=pla&googleloc=9021570&poi=&campaignid=21222258394&mkgroupid=164713660992&rlsatarget=pla-2320093655185&abcId=9408285&merchantid=5303560895&gad_source=1&gclid=CjwKCAjwl6-3BhBWEiwApN6_klD9LqMZ3LGR3G8MUSb-hHLje3r881DhyBf_slcvkB5tDXoik-J_eBoCGokQAvD_BwE
I use the bridge cable to check the signal where I can get it
Here is the link to the product.
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=6611393766528978421&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1016367&hvtargid=pla-738507877570&psc=1&mcid=f4070e6f213f389c92ca42449bdceef6&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=6611393766528978421&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1016367&hvtargid=pla-738507877570&gclid=Cj0KCQiAwP6sBhDAARIsAPfK_wYPZLFaVl8eV8UzqCAn-xj686o2oDqXQiv6QIXVb6RRWfxpyxSgapkaAlSdEALw_wcB
Do you know where is the command gps module ? C 300 w205 c class 2017
How do I get jumper or how do the same thing?
Here it is. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=17341479303174168107&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021494&hvtargid=pla-738507877570&psc=1&mcid=71bec4198b0238d8bc77c05adea497ce&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=17341479303174168107&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021494&hvtargid=pla-738507877570&gclid=CjwKCAiAhJWsBhAaEiwAmrNyq7vB2DKKP0EqrvDzfdG3rkMcZih3s-koG_OXSptBq9k3-d2nyd6VSRoCo3kQAvD_BwE
Why shouldnt you leave the jumper on? What will happen if you dont program the new part and leave the jumper?
Well nothing will really happen. The only thing is when you scan the vehicle you will get faults for the most communication module.
Was there an issue with voltage getting to the module via the wake up line pin or the power pin? Noticed the code for the anti theft pin, which im assuming is the wake up line?
Bryan, Can you please point out what is the wake-up line pin and theft pin> Please
What are them jumper cables
It is a fiber optic by pass loop. You can get one on amazon.
where can I get that scan tool that you are using? Can that be used to reprogram?
I got this scan tool from ECS Tuning website I believe at the time it was around $1,300. As far as coding this module, I was not able to code it with this specific scanner. There is another scanner on the website that is able to program and do scn coding!
I have a 09 c350 n my back speakers would work then shut off. Only the front ones work. Any idea what it is ?
Sounds like you have issues with the speakers, might also include your amplifier. I would def get some codes pull for the Command unit and infotainment!
Hello, I have a problem and I’m hoping you can help me. I have a 2011 C300 and my AUX option won’t work, I get no sound. I can hear the FM radio, AM, Weather as well as the CD, but the only one that doesn’t work is the AUX. Do you happen to know what I can do to fix that? Thank you in advance.
Interesting question. Is your Aux located in the glove compartment box?
@@Fwerks.1592 yes, the car came with the old school iPod connection 16 pin I believe and a jack both attached to one wire that came with the car. The AUX was working but I think something in the MOST engineering menu was changed but not sure if that was the cause because like I mentioned everything else I can hear fine. I was thinking it’s the MMI cable but I bought a couple and none of them worked so maybe it’s the one inside the one that was replaced in the video.
I have the same problem. No aux audio, did you find a solution??
@@floangg7084 definitely sounds like the most communications module took a crap. That interface controls, the fm, am, Bluetooth, weather band, aux, cd!
@@loraine5240 sorry for the delay, I’d have to check the c300 I have now and see what’s going on. Most definitely I can tell you that sound travels through the fiber optics, that run to the interface module, also the the infotainments in the center, Bluetooth, cd, am, fm and weather band runs to the module. If anything starts acting up it should be the module going bad.
If i do the bypass will i be able to use Bluetooth to listen to music?
@@queenofstyle8979 yes you will be able to listen to your Bluetooth music if you use the bypass loop.
So for me, my audio works but if I turn up the volume at a certain point it causes the sound to go away. Have to keep the car off for a little while before it comes back. Any idea how I can fix that?
Where can I get a jumper what is a jumper
Here is a link to the bypass/ fiber optic loop wire.
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=7694772026372692605&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&psc=1&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=7694772026372692605&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570
I bought a 2012 E350 off the auction with the same exact problem when I popped my trunk there was no serious satellite module. Like someone took out completely. Is that the problem then for no audio because once I hooked up the one ordered it didn’t change anything
Have you tried hooking it to the connecter that goes to the amp,? Is not hook it to the most communication module”s connecter. Keep me updated!
How can order that jumper
Here is a link where you can order the jumper fiber optic loop. www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW/ref=asc_df_B07PDJPXCW/?tag=hyprod-20&linkCode=df0&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=5153541858392821430&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&psc=1&mcid=71bec4198b0238d8bc77c05adea497ce&tag=&ref=&adgrpid=69815303997&hvpone=&hvptwo=&hvadid=346785085901&hvpos=&hvnetw=g&hvrand=5153541858392821430&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9021570&hvtargid=pla-738507877570&gclid=Cj0KCQjwq86wBhDiARIsAJhuphms84PJEuxTqEQGDWh-cyJtFGKKmGByOZr7XQbCqUFqreBfcmRnlzIaAriLEALw_wcB
Can you tell us the year of this car
Yes sir! This specific c300 is a 2012 with a 3.0 V6 engine.
Hello, I have a C 300 2008 and my Dvd player has no sound.
How does a jumper work?
I’m sorry for the delay! The Audio system runs in a loop! That means the light has to pass through the fiber optics and go through each module to complete the loop. So when you have a most communication issue, the ring becomes broken and the communication path becomes unusable. So here is how the bypass/ jumper comes into play. In order to confirm if a module is faulty or not you can use the bypass and plug it into the suspected bad module and you should hear sound again if that’s the problem. Once you found the break in the Most loop, you can use the fiber optic jumper / bypass connecter . What this does is basically to remove the faulty module from the network and to replace it with a connecter that “CLOSES” the loop so the light signal can continue its path. Hope this makes sense?
@@Fwerks.1592 thats great brither thank you do i need to take out the stereo unit to get to that module?? Im gonna start with the ones in the back as they seem more accesbile leaving the front one for the emd
@@avilaomar10 sounds good! Once you check all the ones in the back move to the one under the glove compartment box. Leave the head radio unit in there for now till you confirm if the module under the glove box is good.
But which option did you lose using that jumper?
Thanks
I had no Audio whatsoever. It didn't matter if it was radio, Bluetooth, Aux or Cd player. When I used the jumper, everything went back to normal!
@@Fwerks.1592 after using jumper, do you have all of them back or you lost some functionality (eg USB).
@@next24 no everything was working as it should. USB, aux, cd, radio, weather band, Bluetooth all working!
@@Fwerks.1592 thanks
Then what is the point of that module 🤔
I have b class 2014 not working fuses OK please help
Tengo un problema con un estéreo de un w212, se prende y se apaga solo en todo momento. A la vez los parlantes no suenan y hacen ruido como si golpearas un micrófono. Si puedes guiarme me ayudaría muchísimo colega.
Buenos dias, revisaste los modulos con el cable de fibra optica bypass. Tienes que comprobar cada módulo individualmente. Así encontrarás el problema.
Revisé el módulo del video también e hice el puente pero no hay caso :( aparentemente el problema es del estéreo
What is the cause of the damage?
Good Morning! the cause of the damage was, the owner removed the top gasket to the windshield. Water then was coming inside the interior every time it rained or went to a carwash.
If the cable bypasses the module and the audio works is it okay to not replace the module and leave the jump cable connected?
You can leave it jumped, nothing will happen. I do recommend get the module replace and coded down the road for sure.
My phone mics stopped working in my e300 w213.
The best thing I can say is try jumping the most communication module and see if you get your mic back.
I have a black command screen and the radio doesn't work. All the fuses are good.
My car has static in and out not constant and the key isn’t in the ignition nor is the radio on
Hello everyone
please I need your help with my sound problem on my c350 w204 2012.
The radio turns on but the sound comes on for a few seconds and then it cuts off
You have to start testing all these modules individually. I show everything on this video . You will need a bypass fiber optic wire. You can get those on Amazon or Ebay.
Awesome Lil brother
Anytime!!!
Thank you very much you solved my problem
I’m glad I was able to help!!!
Great video I just resolve the same exact issues with my vehicle
I’m glad this video was some help! Thank you!
Excellent Video extremely informative helped alot.
Thank you!!🙏
Same exact problem here but on my 2010 E550 Coupe. Stopped getting sound & then it worked again randomly for 2 days straight then gave up again on the weekend lol so
When I scan the car with Carly I only get 2 fault codes:
1.The wake-up line has a short circuit to ground. -Stored.
2.MOST communication has a malfunction (MOST master reporting ring break)- Current & stored.
My phone still connects via wireless bluetooth however when I try plugging it with the iPod connection in the glovebox it won’t read the signal so I’m thinking it’s the media interface module?? The fiber optic loop came in today so hopefully tomorrow I can confirm this issue with the guide you provided 🙏🏽 & hope this solves it! Sucks this module is not plug & play , other forums said it is on the e class but guess we’ll have to see lol thanks again for the guide & if you have any advice or recommendations that’d be appreciated thanks!
Anytime brother! Keep me posted if that module is the problem! Also I’m curious is this module is a plug and play on the E class like they say.
@@Fwerks.1592 yes the same exact module is faulty, plugged the fiber loop & instantly got sound back! Still connects via Bluetooth so I left at is as for temporary solution until I order a new module 😂 probably next month I’ll deal with it as long as I can play my music is fine. But once I connect the new module i’ll let you know if it needs to be reprogrammed or not on the e class ! Thanks again brother you the man 💪🏽
@@alerodrigvez4956, good stuff!!!! Nothing feels better than getting your music back lol. Yes! Kinda curious to see if the module doesn’t need to be programmed!
I have a black display screen but the radio works fine it’s a 2012 c250
Sounds like maybe your head unit is faulty.
@@Fwerks.1592 so replace the screen?
@@Fwerks.1592 I replaced the screen and that didnt work
Wife just got one of these, same issues. Thanks Bro
Anytime! I hope this video was able to shed some light on this issue!
@@Fwerks.1592 Well I found out an easier way to get it back to work, including all Audio option and Navi. without taking the dash apart or taking out the radio.
My Wife's Benz is a 2013 C300 sport 4Matic
@@Infidel67 I’m listening!!!! How did you get it to work??
@@Fwerks.1592I replied already with a link, YT must have removed it, anyway the jumper set I got was from Amazon for $9
1 male and 1 female>>> Passenger side at the footwell>>> fold the carpet back>>> remove the black Styrofoam piece. on the right all the way back , close to the door you will see the fiber optic connection, disconnect and plug both of them in, one in each.
make sure radio is off before you disconnect. ....Turn radio back on, thats it
@@Infidel67can you tell me the name of the video please
My screen went black I don't knw what to do but I can listen to radio just the screen went black
I Know this video is old but I have a 2011 E350 and my radio has sound. My screen is black and I can't eject the CD. Any ideas? BTW Great video!!
No worries! I think having the vehicle scanned to see what codes pop up would be ideal. I’m thinking you might have a bad head unit!
Very good video, thank you. I used the amplifier cable, opening it inside, it has fiber optic cable.
Thank you! I'm glad this video was able to help you out! hopefully I can bring more videos like this for the W204!
How did you take out the module?
If you look underneath, the module is held with two tabs. You will need a flat head screwdriver to press the tabs down. Once you have both pressed down you can pop it out of place.
U gotta match part numbers dosnt have to be programmed
I’m pretty sure you still have to program it. I’ve looked for the exact same part number and it was impossible to find. I used a cross reference part number from the exact same year, model and trim level. I had another guy emailed me about the same thing and turns out he had to get the module program even with matching numbers.
Is there anybody in here located in Atlanta that can help me with this
That Mercedes C300 needs a loving Owner to wash it and do some restoration on the seats and interior. Looks like its been stolen.
Definitely mentioned it to the owner and he wasn’t really interested! The seats though, I’ve seen it’s a common thing they start to deteriorating. I already came across four C300 with bad front seats!
Thank you brother
Anytime!
Where did you get that jumper???
I got them from amazon. Here is a link.
www.amazon.com/Universal-Optical-Adapter-Mercedes-Porsche/dp/B07PDJPXCW
@@Fwerks.1592 thank you so much. Just yesterday the same crap happened to my SLC300 and I'm trying to figure it out. This video was great!
@@darmhok I'm glad this video helps!
Question would you have bought the replacement knowing you just needed a jumper I have the same issue do I buy a good replacement and jumper ?
Where can I get a similar jumper?
I have a black command screen and the radio doesn't work. All the fuses are good.
Sounds like you might have a bad amplifier. I would definitely have this amp checked out.