Auto Tech hi and thanks gor tge feed back, sorry if you didnt understand the video. The video has a headline “ c class fan malfunctioning, keeps coming on all the time, and I specify how I diagnose and found that the ecu was faulty, so am not sure where I left you on this video, Thanks and I’ll try to be more clear, appreciate it 🙏🏽
CSCTechDep Suli ok , thanx man i know that ECU was the proplem but i mean how you know that as u said no fault code what was your steps to daignosis the proplem . sorry if i disturbes u .
CSCTechDep Suli ok bro i pappreciate your efforts thank you , the fan socket have 4 wires one power , one ign , one ground and the last one is the signal from Ecu what i mean is to show your steps while working as the other technician like south auto repair and scanner danner do and if u look down 👇 u will see that there is another comment asking about the proplem . do u have my point 🙏
What sucks is I have this exact same issue. However, this video is so poorly edited, so poorly spoken and so poorly explained that I can't even figure out what the solution is that he recommends. Lol
How You ended up with conclusion that it's engine computer faulty? It could be bad sensor, and because of it, ME sending signal to engage fan full speed.
Rasta Homestead yes, your absolutely partially right, that’s why I even said ALWAYS READ YOUR ACTUAL VALUES, you can see the sensor reading, check if there’s any codes.
Buddy was the fan on even engine was off? Was it on only when u start the engine? I jv c200 2009 petrol, after a heat signal came on while driving on my block I immediately put on coolant and temperature came down but fan is on constantly. Even engine s off fan keeps on running. I hv disconnected the battery cable. No clie what to do coz all technicians fail to solve
Hey, were you able to diagnose/fix the problem? I’m having the same issue with my c300. The fan starts randomly when the engine is off and keeps going until the battery dies. I’ve changed the battery and still the same issue
@@ronellsemple1538 Hello Sorry for the late reply. The culprit should be the fan resistant. Its the motor black and round in shape attached with your fan motor. Please update what has happened.
Ronell Semple exact same thing happened to me when WATER got in the fuse box. Fixed when it dried out. You have water damage somewhere in your ecu or fuse box
@@multiblade04 Yes it sorted out as connecter (which connects the fan and the electric cable) located behind the fan infront of the car got busted. Original part costed $390 i got a used one for $80.
Man do you know where the flan relay is located on this car. I have a c300 2008 4matic sport. My fan sometimes works and sometimes doesn't . It would work and than randomly it would stop working and the car would show it overheating
I brought my Mercedes e550 to get a radiator , water pump , put in. Now my fan constantly runs, and my fake mechanic can't figure out why. First of all I made the mistake by taking it to him. It was not happening before I took it to him. Do you know what the problem could be?
Hi there, please help me, this is getting frustrating. I have a c300 2008 with a fan not working at all. I bought a replacement fan online, I mounted and connect it and nothing happens. Now I don’t know if there is something else I need to check (relay, Fuse) or how can I test if the one I purchased is defective. Any idea, suggestion please let me know.
CSCTechDep Suli No I don’t have a scan. A friend of mine has a tester so I can borrow it. What do I need to test? We tried with some wires coming from the battery to the fan and nothing happened. Now I’m not sure if the fan I have is defective or something else may be the problem. How can I test the fan? What other things can prevent the fan to run?
Jupacev I would check the basic things first like, fuses, and relay, then grab a test light and see if there’s power going to the fan, but scan tool can help you a lot and fast to figure out, like activating the fun, check the values of the A/C, engine temperatures, and ecu it’s self, sometimes it could be the fuse box not activating the fan. But eliminate the basic at least Good luck buddy
CSCTechDep Suli I’ve been trying to find the fan fuse and it is not on the fuse diagram, I don’t find it on the web either. I found where the relay is on a website and the relay is fine. If you have an idea which fuse to check please let me know.
Shareen Osbourne hi Sorry for the confusion and it’s ok, My concentration was for the fan running all the time, A/C and heat weren’t the issue on this case. ( the pressures were good and all sensors were reading accordingly, mine was the Engine control unit defective . I hope this help 🙏🏾
Why would you stop and cut your message, are you been paid to not share your knowledge?? We are not all rich and it’s a budget to pay for this little things that Mercedes fail to make great!! So much for confidence in a name!!
I was wondering was there a problem with the fan running even with the car off? I'm getting code 0695 and 2359 my fan constantly runs on high when running and turns on and off constantly when the car is shut off. Please help.
hello i have the same problem with my w204 after 1min from the start of the enigne, the fan start running and also my control panel climate is not working at all. i did disconnect it but the problem with the fan persists i dont know is it from the control panel climate or elsewhere thanks for your help
@@james2k00 here the full story. I have a W204 Mercedes and its battery kept on dying, then each time I turned on my car radiator fan starts immediately and will not turn off until I turn off the car and climate control panel will not working at all no light in button OFF. I thought either is the battery or my A/C control panel is dead because I wiped down my dashboard with a wet cloth. so I started by replacing the battery but the issues with my radiator fan and climate control persist. I checked all the fuses in the frond and rear they are fine. after that I disconnected the A/C control panel to see if the fan radiator won't turn on but in vain :( Is there anything other that I should check? or is it really my climate control panel that I need to replace? I'm thinking to buy a new one URGENT HELP thanks so much
@@SLimaneLoukili89 If you can check the connector (black box) fitted behind the physical fan that connect the cable. its behind tge blades. Please get the part checked or use a different one to see if it sorts out. please update.
This is the most foolish explanation a man could ever give
what was the proplem man , why u upload this video to tell us that u fix it or u should explain man thanx in advance
Auto Tech hi and thanks gor tge feed back, sorry if you didnt understand the video.
The video has a headline “ c class fan malfunctioning, keeps coming on all the time, and I specify how I diagnose and found that the ecu was faulty, so am not sure where I left you on this video,
Thanks and I’ll try to be more clear, appreciate it 🙏🏽
CSCTechDep Suli
ok , thanx man i know that ECU was the proplem but i mean how you know that as u said no fault code what was your steps to daignosis the proplem . sorry if i disturbes u .
Auto Tech it’s ok, please watch the video again, I did state running a wire from the ecu to the fan. Again the video addresses all info.
Thank you 🙏🏽
CSCTechDep Suli
ok bro i pappreciate your efforts thank you , the fan socket have 4 wires one power , one ign , one ground and the last one is the signal from Ecu what i mean is to show your steps while working as the other technician like south auto repair and scanner danner do and if u look down 👇 u will see that there is another comment asking about the proplem . do u have my point 🙏
Auto Tech yes , absolutely right, and the guy from the first comment, did call me from state, and I kindly guided him through.
Thanks a lot thought 🙏🏽
What sucks is I have this exact same issue. However, this video is so poorly edited, so poorly spoken and so poorly explained that I can't even figure out what the solution is that he recommends. Lol
true
Hi. I have a Mercedes G63 with such an issue. The fan goes on when the car is switched off. What could be the issue ?
Did you ever figure out your issue bud?
This happened to me when water got in the fuse box! Fixed itself when I dried it out
If you can afford a G63, you should be able to afford a specialist too
@@TsarOfRuss wtf they came for an answer you don't know peoples situation
@@TsarOfRuss 🤣🤣🤣🤣
How can I test the cooling fan I know red is +12 and brown is negative, the small black wire is the ignition? And the green the voltage regulator?
If you remove that wire it cut down the high speed but will it operate at normal temp and when the ac turns on also
So what was the problem? Because I have the exact car and having the exact problem the fan making the battery die.
Can please tell me how you fix this fan c300
How You ended up with conclusion that it's engine computer faulty? It could be bad sensor, and because of it, ME sending signal to engage fan full speed.
Rasta Homestead yes, your absolutely partially right, that’s why I even said ALWAYS READ YOUR ACTUAL VALUES, you can see the sensor reading, check if there’s any codes.
Pls my, GLk350,can I still do the same thing or I have to follow a different procedure
Buddy was the fan on even engine was off? Was it on only when u start the engine? I jv c200 2009 petrol, after a heat signal came on while driving on my block I immediately put on coolant and temperature came down but fan is on constantly. Even engine s off fan keeps on running. I hv disconnected the battery cable. No clie what to do coz all technicians fail to solve
Try Changing your battery.
Hey, were you able to diagnose/fix the problem? I’m having the same issue with my c300. The fan starts randomly when the engine is off and keeps going until the battery dies. I’ve changed the battery and still the same issue
@@ronellsemple1538 Hello Sorry for the late reply. The culprit should be the fan resistant. Its the motor black and round in shape attached with your fan motor. Please update what has happened.
Ronell Semple exact same thing happened to me when WATER got in the fuse box. Fixed when it dried out. You have water damage somewhere in your ecu or fuse box
@@multiblade04 Yes it sorted out as connecter (which connects the fan and the electric cable) located behind the fan infront of the car got busted. Original part costed $390 i got a used one for $80.
Man do you know where the flan relay is located on this car. I have a c300 2008 4matic sport. My fan sometimes works and sometimes doesn't . It would work and than randomly it would stop working and the car would show it overheating
Did you ever figure it out that’s the exact thing that happened to my c350
I brought my Mercedes e550 to get a radiator , water pump , put in. Now my fan constantly runs, and my fake mechanic can't figure out why. First of all I made the mistake by taking it to him. It was not happening before I took it to him. Do you know what the problem could be?
I’m having the same problem rn
Hi there, please help me, this is getting frustrating. I have a c300 2008 with a fan not working at all. I bought a replacement fan online, I mounted and connect it and nothing happens. Now I don’t know if there is something else I need to check (relay, Fuse) or how can I test if the one I purchased is defective. Any idea, suggestion please let me know.
Jupacev hi there ,
Sorry for the frustration buddy, do you have a scan tool , ?! And a test light ?!
CSCTechDep Suli No I don’t have a scan. A friend of mine has a tester so I can borrow it. What do I need to test?
We tried with some wires coming from the battery to the fan and nothing happened. Now I’m not sure if the fan I have is defective or something else may be the problem. How can I test the fan? What other things can prevent the fan to run?
Jupacev I would check the basic things first like, fuses, and relay, then grab a test light and see if there’s power going to the fan, but scan tool can help you a lot and fast to figure out, like activating the fun, check the values of the A/C, engine temperatures, and ecu it’s self, sometimes it could be the fuse box not activating the fan. But eliminate the basic at least
Good luck buddy
CSCTechDep Suli I’ve been trying to find the fan fuse and it is not on the fuse diagram, I don’t find it on the web either. I found where the relay is on a website and the relay is fine. If you have an idea which fuse to check please let me know.
Ok so my fan is blowing on high and my car don’t over heat but the moment the car goes on 4 min later fan run on high it just started doing it
Did you change the ME or did you just flash it?
David H changed and program it
@@csctechdep5934 how to program the ME ?
@@shadowflare99 I use Mercedes scanner, and a log in
Ok so when u do that will the AC and heat still work . Really confused lol
Shareen Osbourne hi
Sorry for the confusion and it’s ok, My concentration was for the fan running all the time, A/C and heat weren’t the issue on this case. ( the pressures were good and all sensors were reading accordingly, mine was the Engine control unit defective . I hope this help 🙏🏾
So if u need to fix that fan issue I got the fix for I know what peace u need just send me a message jmusic2016@icloud.com
Anyone can someone tell me what they learn in this video???
Why would you stop and cut your message, are you been paid to not share your knowledge?? We are not all rich and it’s a budget to pay for this little things that Mercedes fail to make great!! So much for confidence in a name!!
Hi I have a 2008 c300 and the fan won’t turn on what so ever not even running the ac what could it be?
Ivan Magdaleno hi, is the fan getting power !
It could be a defective fan !!!
what wire did you run to fan ?
ecu to fan but which wire ?
One subscriber more.
Terrible editing, can't even figure out what was said during initial introduction
I was wondering was there a problem with the fan running even with the car off? I'm getting code 0695 and 2359 my fan constantly runs on high when running and turns on and off constantly when the car is shut off. Please help.
I have a 2011 c300.
@@alexisthomas2622 did you find the issue??
Is it the ecu cooling fan blower motor?
It was the motor electronic unit faulty
I tried to dislik 2 times. I couldn’t
Maybe you should explain what exactly you dislike, and if there’s anything you know please share, we are all trying to learn !
Try that
Thanks
I have a similar problem on my 2009 C300 4matic Sport. What was the problem on the one you were working on and how much did the repair cost?
I have a similar problem on my 2008 C280 4matic Sport, did you finally fix yours?? what was the cause of the speeding fan?? what did you replace?
Tsar it a faulty alternator damaged from some water hitting it.
@@kelvinkisusi8471 i have the same problem how to fix that issue
@@harmanrai9319 Believe it or not it was a faulty alternator that got exposed to a bit of water. Changed that piece and all was good.
@@kelvinkisusi8471 where is this located friend?
hello i have the same problem with my w204 after 1min from the start of the enigne, the fan start running and also my control panel climate is not working at all. i did disconnect it but the problem with the fan persists i dont know is it from the control panel climate or elsewhere thanks for your help
hi is the fan direct and spinning nom stop even after you off ignition?
@@james2k00 no it stops after turning off my car
@@james2k00 here the full story. I have a W204 Mercedes and its battery kept on dying, then each time I turned on my car radiator fan starts immediately and will not turn off until I turn off the car and climate control panel will not working at all no light in button OFF. I thought either is the battery or my A/C control panel is dead because I wiped down my dashboard with a wet cloth. so I started by replacing the battery but the issues with my radiator fan and climate control persist. I checked all the fuses in the frond and rear they are fine. after that I disconnected the A/C control panel to see if the fan radiator won't turn on but in vain :( Is there anything other that I should check? or is it really my climate control panel that I need to replace? I'm thinking to buy a new one URGENT HELP thanks so much
@@SLimaneLoukili89 If you can check the connector (black box) fitted behind the physical fan that connect the cable. its behind tge blades. Please get the part checked or use a different one to see if it sorts out. please update.
@@SLimaneLoukili89 i have the same issue in my w204 which i am still using
Just a stupid car
Worst edit ever?
No help all at explain better
If your factory PWM fan controller has a problem, call The Auto Cool Guy. www.autocoolguy.com
This is a waste.