I am a mechanic and I found this problem on a 2013 Mercedes C250, a real problem, I searched hundreds of videos on UA-cam and I couldn't find the solution, the only video that is worth it is the one you published, if I could rate you I would give you a 100 🙏
Man on the damn ground I have a 3v that is showing up…. I’m able to actuate the starter manually but the ecm won’t ground it out…. Where is the ecm located on this junk
I have a 2015 mercedes benz c300 no crank, shift selector not powering up, the 30amp fuse to the starter is a stray ground. I checked with a power probe, and then I put power to the fuse with my power probe, and I get the engine to cranck. That's crazy I can see powering the starter relay but not the fuse. This car is a nightmare, nothing like I ever had before. Need help. A y Ideas would be greatly appreciated.
Hi, i have the same problem with my c220 2016 , good battery, good relay also have good ground but doesn’t start with the key i can only start it by removing the cap from the relay and touching it then it start stright away , you have some advice please ? Many thanks
Check for power at 86 of the starter relay. You said you have ground at 85 while cranking? If you have power at 86 and ground at 85. Then you must get a crank. You cannot have power at 86 and ground at 85 and get a no crank. We already know you have power at 30 and that it transfers to 87 because you're jumping the relay and starting the car successfully.
@ Hi, i have done a check again and it looks like i have no power to 86 you know whats causing that or any advice please thank you so much for try to help me
I am not a mechanics 🧰. I drive a Benz c300 014 and I had this same problem. Your video was really helpful and I was able to solve the issue myself. Thank you bruh
Hi, i have done a check again and it looks like i have no power to 86 you know whats causing that or any advice please thank you so much for try to help me
OK. I have a GLK 350 4matic 2012. Just replaced battery. Car is receiving power. Cannot get a crank or NO lights on dashboard. Could be possible water damage Inside car and near the fuse box. What’s my next move ?
Hi, I've got a e220 cdi but get no esl lights. Fuses are all good and relays but will be checking the connections and cables today. Is there anyway of removing the fusebox?
I have similar problems for my c-300 from2012. Trying 5-6 times to start and light on board but did not crank the starter after a while and 5-6 tries it’s start. Happened this 2-3 times in the last week. Is this a sign that something is kind of found to die soon? Is this an indication that some relays or fuse or ecm is going to fail soon?
@@zahariastoianovici8590 yes this means something is failing. It’s not a fuse, when a fuse breaks, it won’t work intermittently. It could be a relay, it could be the ECM. Do the test in this video when it’s not starting. If you get no ground at the starter relay as shown in the video. It’s your ecm.
Hey 2015 Mercedes C300. Changed the key fob battery and the next day car wouldn’t start. It does a click at first but it won’t start all the dash lights come on the AC comes on and the radio just won’t start. Any guess what the problems could be? Guessing the starter is the problem.
Starter sounds like a good guess. Guessing is for fun. You can easily find the issue by testing a few parts. First battery voltage. Use a volt meter or take the batter to a parts store for a load test. It’s should be above 12.3 volts. Next check your starter fuse and relay. There are hundreds of videos on UA-cam showing how to test a relay. Test your starter. You can do this with a wire through your fuse box. Or go underneath and test it directly by bridging the b+ 13mm nut. and switch 10mm nut with a screwdriver. If you do those tests, you won’t have to guess.
W203 and W204 both have steering locks. We have an ESL emulator for the W203 as well. Call us when you're at your vehicle so we can try and diagnose it on the spot. 818 510 3375
I have a problem with starting a Mercedes W205 180d, after discharging the battery and replacing it with a new one, the car does not start, after turning the key, the starter does not turn, the handbrake and ABS errors appear, the display between the clocks does not want to go off even after closing the car with the key and opening the trunk lid. halfway
Battery voltage is around 12.6? Starter fuse is good? Starter relay is an OEM working relay? Will your starter turn if you jump starter relay terminals 87 and 30? You do have red and yellow dash lights on the cluster when the key is turned to the on position? You do get a ground signal at terminal 85 like I show in this video? You should find battery voltage at terminal 30 always. You should have battery voltage at 86 when cranking. If all of these are happening. You should get a crank.
@@mercedesbenzspecialist I did all the steps and everything is fine, only the step of connecting the 87 and 30 I did it and it did nothing so what could it be?
Hi, I tried everything that you explained in the video. All the cluster light turn on, I hear the steering lock unlocking, I have ground signal at pin 85, have 12.5V at pins 30 and 86, but I don’t have power to pin 87 in the fuse box while someone is cranking. What could be? Please help!
Power is transferred to 87 from 30 by the starter relay. With the starter relay out, power will not be transferred from 30 to 87. Maybe the starter relay is bad. If you solved the issue, please share with us what it was.
My car problem is that i have lights and radio but if i try to turn on the car it does not start. But it sounds like it wants to start but it only last about 1 second. But if i charge my battery or jump start it it turns on. Went to autozone they said battery and altenator works. Could it be the starter?
@@apples8869 sounds like you may have a voltage drop between the battery and the starter. Or AutoZone was wrong about your battery being in good shape. Did they do a load test on your battery? Or did they just measure the surface voltage?
@@mercedesbenzspecialist he checked the voltage when it was off he said it was good then he told me to turn on the car and let it run for a 1 minute or so and after that the machine lights he had turned green.
@apples8869 I recommend you remove the battery and take it to an auto parts store that will do a load test. Best to be certain your battery is in good shape before spending time and money on further diagnosis.
I changed my key fob batteries and now my car is not starting at all no dash lights at all no central locking too any idea ? remote fob is fine and main battery is 12.4 that's fine too
How do you know the key fob is fine? If it won’t start the car. You said “no central locking”. I assume you mean the fob does not lock or unlock your doors. If this is true, then the key fob has to be on your list of suspects. Along with the EIS, and the fuses that power the EIS.
@mercedesbenzspecialist tested the key with a mercedes key fob signal reader it's giving frequency each time we press fob buttons next to the piece of kit
@mercedesbenzspecialist I went back to the car after I changed the batteries then all of a sudden no central locking no dash lights no crank so random it happened
What do we do when the lights don't even come on? I have a W204 C250, and I had an issue with the ESL, and got it replaced with an emulator. I get a DTC that my ABS failed and the car won't drive too fast. I make it home and park, try to unlock the car in the morning, and I get no response from unlocking the car, to the point I had to call a locksmith. He opens it, the alarm goes off, and I put it in the ignition, and the car cranks on the first try. After that, I cut it off, go to Autozone, and come back. Car doesn't start and no lights on the dash. Only codes I've gotten is : C0031, P0705 So my symptoms are: No Dash Lights Car Won't recognize the Key Fob, even when inserted Front Left Wheel Speed Sensor Malfunction No Crank whatsoever Have yall ever heard of a wheel sensor making a car unable to start? I dont have ESL issues so what could it be?
First you have to address the no dash lights. This indicates you don’t have drive authorization. There is a problem with one or more of the three components that grant drive authorization. The EIS, ESL, and key. If you don’t have dash lights. One of these is the issue. Contact me at 818 510 3375.
So I had this problem I bought the emulator changed it out and now I have this problem with the fuse keeps blowing I put a new oem starter relay but fuse 7 keeps blowing
I chaged the battery and i was having the same issue replaced the battery and my car worked ever since note even tho my lights and power in the car worked the battery still never started my car but after i replaced it car is now working ever since
Do you have any other idea what could be wrong? C220 2010 no errors, everything lights up but still doesn't crank. It happens randomly never on a first start but after driving around. Sometimes it's good for a month and then randomly doesn't start again. After 30 mins or so of trying to start it does start. Tried continuity test and it does beep. Went to several mechanics but no one can find what's wrong. :/
@@Xjuijau Have you tested for ground at starter relay terminal 85 while it’s not cranking? Check for battery power at starter relay terminal 86 while trying to crank.
What year and model? What's the battery voltage? Have you tested your starter? Check for battery voltage at the fuse box Relay M pin 86, 30, and 87 while someone is cranking. Post your results.
@@killermonkey8382 4 volts? You should find the same voltage as your battery voltage. If your battery voltage is at 4 volts. That’s why you have a no crank situation. Battery voltage should be at 12.4-12.6 volts.
When someone is cranking the vehicle, you should find ground at slot 85 and battery power at 86. Slot 30 should have battery power on always. If 85 and 86 have power and ground they will close the relay circuit sending battery power from 30 through 87 directly to circuit 50 (that's the circuit going directly to your starter solenoid. If you're wondering what slot 85 86 30 and 87 are. I'm referring to the slots in the fuse box located at the firewall on the driver side where the starter relay lives. Pull up the starter relay and you will find these slots. Your relay will probably have a diagram on the cover.
Thats what im waiting on to get my starter from bosch hate waiting Amazon send me one that wasnt compatible which its false advertising never buying car parts from Amazon again ...
I am a mechanic and I found this problem on a 2013 Mercedes C250, a real problem, I searched hundreds of videos on UA-cam and I couldn't find the solution, the only video that is worth it is the one you published, if I could rate you I would give you a 100 🙏
Thank you brother I appreciate it.
Excellent video
Thanks.
Man on the damn ground I have a 3v that is showing up…. I’m able to actuate the starter manually but the ecm won’t ground it out…. Where is the ecm located on this junk
@dieseldawg7132 I point the ECM out in the video.
I have a 2015 mercedes benz c300 no crank, shift selector not powering up, the 30amp fuse to the starter is a stray ground. I checked with a power probe, and then I put power to the fuse with my power probe, and I get the engine to cranck. That's crazy I can see powering the starter relay but not the fuse. This car is a nightmare, nothing like I ever had before. Need help. A y Ideas would be greatly appreciated.
Hi, i have the same problem with my c220 2016 , good battery, good relay also have good ground but doesn’t start with the key i can only start it by removing the cap from the relay and touching it then it start stright away , you have some advice please ? Many thanks
Check for power at 86 of the starter relay.
You said you have ground at 85 while cranking? If you have power at 86 and ground at 85. Then you must get a crank. You cannot have power at 86 and ground at 85 and get a no crank. We already know you have power at 30 and that it transfers to 87 because you're jumping the relay and starting the car successfully.
@ Hi, i have done a check again and it looks like i have no power to 86 you know whats causing that or any advice please thank you so much for try to help me
Hi, anyone know why there is no power to 86 to starter relay ??? Many thanks
I am not a mechanics 🧰. I drive a Benz c300 014 and I had this same problem. Your video was really helpful and I was able to solve the issue myself. Thank you bruh
Hi, i have done a check again and it looks like i have no power to 86 you know whats causing that or any advice please thank you so much for try to help me
Check fuses #F22-F25 in the fuse box under the hood driver side firewall. If those fuses are good. You may have a bad engine control module.
OK. I have a GLK 350 4matic 2012. Just replaced battery. Car is receiving power. Cannot get a crank or NO lights on dashboard. Could be possible water damage Inside car and near the fuse box. What’s my next move ?
When you open the driver door. Does the mileage show up in the cluster? Or is it totally dark?
Hi, I've got a e220 cdi but get no esl lights. Fuses are all good and relays but will be checking the connections and cables today. Is there anyway of removing the fusebox?
I’ve had my car for well over 6 months just noticing I don’t have a starter relay how is it working
You got me. I don't know.
I have similar problems for my c-300 from2012. Trying 5-6 times to start and light on board but did not crank the starter after a while and 5-6 tries it’s start. Happened this 2-3 times in the last week. Is this a sign that something is kind of found to die soon? Is this an indication that some relays or fuse or ecm is going to fail soon?
@@zahariastoianovici8590 yes this means something is failing. It’s not a fuse, when a fuse breaks, it won’t work intermittently.
It could be a relay, it could be the ECM. Do the test in this video when it’s not starting. If you get no ground at the starter relay as shown in the video. It’s your ecm.
Hey 2015 Mercedes C300. Changed the key fob battery and the next day car wouldn’t start. It does a click at first but it won’t start all the dash lights come on the AC comes on and the radio just won’t start. Any guess what the problems could be? Guessing the starter is the problem.
Starter sounds like a good guess. Guessing is for fun. You can easily find the issue by testing a few parts.
First battery voltage. Use a volt meter or take the batter to a parts store for a load test. It’s should be above 12.3 volts.
Next check your starter fuse and relay. There are hundreds of videos on UA-cam showing how to test a relay.
Test your starter. You can do this with a wire through your fuse box. Or go underneath and test it directly by bridging the b+ 13mm nut. and switch 10mm nut with a screwdriver. If you do those tests, you won’t have to guess.
Can you give me advise for my mercedes Benz C240 w203 Automatic doing the same
W203 and W204 both have steering locks. We have an ESL emulator for the W203 as well. Call us when you're at your vehicle so we can try and diagnose it on the spot.
818 510 3375
I have a problem with starting a Mercedes W205 180d, after discharging the battery and replacing it with a new one, the car does not start, after turning the key, the starter does not turn, the handbrake and ABS errors appear, the display between the clocks does not want to go off even after closing the car with the key and opening the trunk lid. halfway
same problem with my 2010 mercedez c300.....
I already did the tests as shown and if it sends a signal from the ECM to pin 85, which could be someone who can help me?
Battery voltage is around 12.6?
Starter fuse is good?
Starter relay is an OEM working relay?
Will your starter turn if you jump starter relay terminals 87 and 30?
You do have red and yellow dash lights on the cluster when the key is turned to the on position?
You do get a ground signal at terminal 85 like I show in this video?
You should find battery voltage at terminal 30 always.
You should have battery voltage at 86 when cranking.
If all of these are happening. You should get a crank.
@@mercedesbenzspecialist I did all the steps and everything is fine, only the step of connecting the 87 and 30 I did it and it did nothing so what could it be?
@@danielmecanicvlogs6888Maybe the starter solenoid?
Should just replace the starter dude
If the problem has already been resolved, it was the starter motor
Hi, I tried everything that you explained in the video. All the cluster light turn on, I hear the steering lock unlocking, I have ground signal at pin 85, have 12.5V at pins 30 and 86, but I don’t have power to pin 87 in the fuse box while someone is cranking. What could be? Please help!
Power is transferred to 87 from 30 by the starter relay. With the starter relay out, power will not be transferred from 30 to 87. Maybe the starter relay is bad. If you solved the issue, please share with us what it was.
My car problem is that i have lights and radio but if i try to turn on the car it does not start. But it sounds like it wants to start but it only last about 1 second. But if i charge my battery or jump start it it turns on. Went to autozone they said battery and altenator works. Could it be the starter?
@@apples8869 sounds like you may have a voltage drop between the battery and the starter. Or AutoZone was wrong about your battery being in good shape.
Did they do a load test on your battery? Or did they just measure the surface voltage?
@@mercedesbenzspecialist he checked the voltage when it was off he said it was good then he told me to turn on the car and let it run for a 1 minute or so and after that the machine lights he had turned green.
@apples8869 I recommend you remove the battery and take it to an auto parts store that will do a load test. Best to be certain your battery is in good shape before spending time and money on further diagnosis.
@@apples8869Did you manage to find what the issue was?
@@sidrajaved8375 yeah it was my battery
I changed my key fob batteries and now my car is not starting at all no dash lights at all no central locking too any idea ? remote fob is fine and main battery is 12.4 that's fine too
How do you know the key fob is fine?
If it won’t start the car.
You said “no central locking”. I assume you mean the fob does not lock or unlock your doors.
If this is true, then the key fob has to be on your list of suspects. Along with the EIS, and the fuses that power the EIS.
@mercedesbenzspecialist tested the key with a mercedes key fob signal reader it's giving frequency each time we press fob buttons next to the piece of kit
@mercedesbenzspecialist I went back to the car after I changed the batteries then all of a sudden no central locking no dash lights no crank so random it happened
@@Tru911s What year and model is your Mercedes?
@mercedesbenzspecialist it's a w204 c350 CDI year 2012
What do we do when the lights don't even come on? I have a W204 C250, and I had an issue with the ESL, and got it replaced with an emulator. I get a DTC that my ABS failed and the car won't drive too fast. I make it home and park, try to unlock the car in the morning, and I get no response from unlocking the car, to the point I had to call a locksmith. He opens it, the alarm goes off, and I put it in the ignition, and the car cranks on the first try. After that, I cut it off, go to Autozone, and come back. Car doesn't start and no lights on the dash. Only codes I've gotten is : C0031, P0705
So my symptoms are:
No Dash Lights
Car Won't recognize the Key Fob, even when inserted
Front Left Wheel Speed Sensor Malfunction
No Crank whatsoever
Have yall ever heard of a wheel sensor making a car unable to start? I dont have ESL issues so what could it be?
First you have to address the no dash lights. This indicates you don’t have drive authorization. There is a problem with one or more of the three components that grant drive authorization.
The EIS, ESL, and key. If you don’t have dash lights. One of these is the issue.
Contact me at 818 510 3375.
Can you just reset the ECM?????
No. If the ECM is not working correctly. A reset will not fix the problem.
So I had this problem I bought the emulator changed it out and now I have this problem with the fuse keeps blowing I put a new oem starter relay but fuse 7 keeps blowing
Check the starter directly. Bridge the b+ and the signal wire with the blade of a screwdriver. Does it turn?
@@mercedesbenzspecialist yes starter is turning
Did u figure it out bro?
@@ELPUROTAKUACHEI’m having this issue too
@@rigoramirez2092 I haven’t yet bro the start is good so I not sure what it could be
Thank you soooooo much 🙌🏾
You saved my day 🙌🏾♥️🕊
God bless you
You're welcome, thanks for watching.
I chaged the battery and i was having the same issue replaced the battery and my car worked ever since note even tho my lights and power in the car worked the battery still never started my car but after i replaced it car is now working ever since
Yes, it takes a lot of battery power to crank an engine. A weak battery is one of the causes of a no crank situation.
@@mercedesbenzspecialist
Even with 12.5 volts?? Wonder if i should just buy a new batt
Do you have any other idea what could be wrong? C220 2010 no errors, everything lights up but still doesn't crank. It happens randomly never on a first start but after driving around. Sometimes it's good for a month and then randomly doesn't start again. After 30 mins or so of trying to start it does start.
Tried continuity test and it does beep. Went to several mechanics but no one can find what's wrong. :/
@@Xjuijau Have you tested for ground at starter relay terminal 85 while it’s not cranking?
Check for battery power at starter relay terminal 86 while trying to crank.
I have yellow and red dash lights, the car switches gears, fuse is good, relay is good, ground at 85, but still wont crank..
What year and model? What's the battery voltage? Have you tested your starter? Check for battery voltage at the fuse box Relay M pin 86, 30, and 87 while someone is cranking. Post your results.
@@mercedesbenzspecialist2008 c300 2wd sport, checking starter is my last resort, the voltages are all below 4 volts.
After adding refrigerant and unsiezing the blower motor, the car stopped starting all of a sudden
@@killermonkey8382 4 volts? You should find the same voltage as your battery voltage. If your battery voltage is at 4 volts. That’s why you have a no crank situation. Battery voltage should be at 12.4-12.6 volts.
So i have to take the fuse box out and check the wires? Sorry im just a 17 year old kid trying to fix my car 😭😭@mercedesbenzspecialist
Battery voltage good, fuse good , tested for ground that was good, changed the relay.... & nothing .... someone help :(
When someone is cranking the vehicle, you should find ground at slot 85 and battery power at 86. Slot 30 should have battery power on always. If 85 and 86 have power and ground they will close the relay circuit sending battery power from 30 through 87 directly to circuit 50 (that's the circuit going directly to your starter solenoid.
If you're wondering what slot 85 86 30 and 87 are. I'm referring to the slots in the fuse box located at the firewall on the driver side where the starter relay lives. Pull up the starter relay and you will find these slots. Your relay will probably have a diagram on the cover.
@@mercedesbenzspecialist it was starter. I removed it. Got it benched tested. It failed
Thats what im waiting on to get my starter from bosch hate waiting Amazon send me one that wasnt compatible which its false advertising never buying car parts from Amazon again ...
Hi