Nice work! Thanks for posting My SC clutch is not engaging at all and the bypass air flap is not closing. I will try your MOSFET fix and check the signal wire to the ECU. My scan tool allows me to engage the clutch. It does not let me close the air flap as it's non responsive same with a spare used air flap.
Hi! I found this video and followed the exact steps. I ve changed the mosfet and after I reconnected the ECU the car it's not starting. The dash lights comes up, the key connects and works, but when I try to start it doesn't do anything. It was starting before I removed the ECU :)). Any ideas what could went wrong? Thank you!
I have the same issue with my C200 Kompressor from 2001. How can I be sure that the MOSFET is burned? The flap is never moving, it is always opened. When running diagnosis there are 2 faults only - Camshaft Position Sensor - no message and MAF Sensor fault. I checked both faults and sensors seem to be fine and also voltages and current going in and out look good. Is there a way to be sure it is burned MOSFET before doing any disassembling of engine's ECU?
Thanks, I just fixed my Benz following your video. Still is hesitant to accelerate but now the compressor clutch disengages on idle and the bypass valve closes on hard acceleration. The clutch also engages on hard acceleration.
Yes, but I have a question. Car works great of I don't step hard on the gas, but if I do, it starts to idle poorly, shuts down, and I shut it off, wait some time, start again and can move for a minute then does not want to accel, etc. I disconnect the MAF start a couple of times, let shut off by itself then reconnect and works good again until I demand hard acceleration. What could it be? No codes.
@@capifsjshop did you Get it to stop choking, when pressing the accelerator pedal hard / fast? And are you down on power up to 130 kmh ? Mine worked well until I washed it, and driving away from the shop, the engine suddenly started running like crap.
I simply put my foot down one day then when I lifted off I had a missfire as one of my plug coils blew. I believe that sudden voltage spike blew the mosfet.
What happened to me was a coil pack blew on a plug and then my supercharger stopped as it blew a MOSFET on the circuit board. The symptoms that the supercharger then has was it did not engage or turn on .
@@megeorge4128 It was a fluke, you should be fine. 150K is normal mate for a Merc, I had 200K on my old CLK, the only reason I dont have it is someone hit the back of me! I now have an SL 3.7L and use it daily doing a weekly commute of 400miles each way! she has 160K on the clock
Hello Sir, thank you for share your experience. My car is W202 C230k 1997 have same problem then i do like you do (replace mosfet with same new plus replace bearing) but still not working mean the superchareger still buzz). May you have other solution for that case?
C230K 1997, starts but shuts down due to lack of gas in one second. Pump is new, filter is new. Key lights on mirror do not flash so I presume key is fine. Could you help me guiding me what to check. ?
Im on the 3rd mosfet. The clutch is working fine with a battery. I took it off to give it a visual inspection, but it looks fine, but it keeps blowing the mosfet even without connecting the clutch. Any ideas?
@GrooveOn yeah after using the 3rd mosfet I installed the ecu and connected a test light instead of the clutch and worked plugged the clutch in and blew so the coil must have a short. Can't find a new coil anywhere
@@GrooveOn thank you. I have checked my bypass flap because on idle it makes a tac tac tac noise and I have seen that it closes only on extremely high rpm. Can you help? Is it normal? At how many rpm should it close?
@@standolfo Hi there, the bi-pass valve should be open without movement, the slight movement doesn't sound quite correct. The valve should close around 1200 + revs if the valve is not engaging until really high revs, then I would look at possible changing it mate? (should be some second hand on eBay) if you have a MBStar you can open and close it through the software.
@@standolfo sorry MB Star is Mercedes Benz Star Diagnostic. It is what the main dealer uses, however independant dealers also have the diagnostic. Speak them and see if they can just test your supercharger and airflap to check it is functioning as it should
You Sir are a LEGEND, very well put together video!!! I think I have constantly locked SC clutch also - I have also the code P0806 "comp. magnetic coupling." W202 1997 C200K 141kW. Now Im surfing the net what could be the problem and this video will surely help if I have this problem. I noticed that your CLK was pre-facelift? Same conifg. as mine. So do both these cars even have the K40 relay unit where the soldering points burn off? Because from looking at your video I dont see it. That would mean that either my clutch is shot (unlikely as my car is only 54k km) or I have same ecu mosfet issue that you fixed.
@@GrooveOn Understood. I did all the tests today that you did and I have same problem. Took out the ECU and gonna give it a shot once I get the mosfet.
@@GrooveOn By the way - forgot to report my findings. The mosfet was really blown. And it was blown due to the supercharger magnet coil being rubbed through and shortening. After resoldering the mosfer and replacing the coil it work as it should. Thanks again for the video :)
Hi.Is it BUK101-50DL OR BUK101-50GL What you showing in the video on the ebay picture says buk101-50 dl and in the description you say its a buk101-50gl
BUK101 - 50GL is identical to the DL but short circuit load protection max. is 20v, the DL is 35v but the switching rate is faster. Differences are minimal and should do the job. The "G" denotes a higher standard of component.👍
I am very grateful to you.
Today ended up making another smile!!
Thank you very much from Portugal!!
CLK 200 Kompressor 192hp revived
@@dandropTV hope your car is still going strong! I appreciate any super thanks you may have sent to me
Thank you very very very much!!!
Finally fix my problem on my Slk 230K!
Very good explained!
I thought my problem was the k40 relay
Where is that k40 relay situated
I have same problem and didnt solved with this is there anything else to do??? Thank you
Nice work! Thanks for posting
My SC clutch is not engaging at all and the bypass air flap is not closing.
I will try your MOSFET fix and check the signal wire to the ECU.
My scan tool allows me to engage the clutch.
It does not let me close the air flap as it's non responsive same with a spare used air flap.
Hi! I found this video and followed the exact steps. I ve changed the mosfet and after I reconnected the ECU the car it's not starting. The dash lights comes up, the key connects and works, but when I try to start it doesn't do anything. It was starting before I removed the ECU :)). Any ideas what could went wrong? Thank you!
I have the same issue with my C200 Kompressor from 2001. How can I be sure that the MOSFET is burned? The flap is never moving, it is always opened. When running diagnosis there are 2 faults only - Camshaft Position Sensor - no message and MAF Sensor fault. I checked both faults and sensors seem to be fine and also voltages and current going in and out look good. Is there a way to be sure it is burned MOSFET before doing any disassembling of engine's ECU?
Thanks, I just fixed my Benz following your video. Still is hesitant to accelerate but now the compressor clutch disengages on idle and the bypass valve closes on hard acceleration. The clutch also engages on hard acceleration.
well done you !! great feeling huh !
Yes, but I have a question. Car works great of I don't step hard on the gas, but if I do, it starts to idle poorly, shuts down, and I shut it off, wait some time, start again and can move for a minute then does not want to accel, etc. I disconnect the MAF start a couple of times, let shut off by itself then reconnect and works good again until I demand hard acceleration. What could it be? No codes.
@@capifsjshop What was the problem ? im having similar symptoms
@@odda3908 I still have not fixed. I replaced the suggested chip on the computer but still does not allow me to go beyond 130 km/h.
@@capifsjshop did you Get it to stop choking, when pressing the accelerator pedal hard / fast? And are you down on power up to 130 kmh ?
Mine worked well until I washed it, and driving away from the shop, the engine suddenly started running like crap.
Thanks for the video. I have the same problem but when I put my hand over the hose it is sucking not blowing. Is this normal???
@@jamesallner1638 yep it will suck in air to the supercharger, then the flap closes
Thank you !!!! fantastic explication, good for my problem....!!! Thank
Great video. What causes the mofset to fail?
I simply put my foot down one day then when I lifted off I had a missfire as one of my plug coils blew. I believe that sudden voltage spike blew the mosfet.
The model slk 200 r171 have the same problem?tank you
Hi, my super charger on my 2000 CLK230 stopped engaging, this problem suddenly happened, any suggestions as to where to start looking?
for me my super charger stoped working when I accelerated hard once and I blew spark plug coil. Check if your bypass flap is faulty.
hello I have problem clk 230 1999 automatic maximum power 4000 thousand rpm ??? please advise me what to do
Was there an obd2 code for bad ecu? Because it seemed like an educated guess what you did to fix your car?
No this was done way before any diagnosis tools I had, I worked it out old school by researching
здравствуйте моя машина w202 c230kompresor такая же проблема нагнетатель работает на холосом ходу та же проблема у меня с мосфетом?
Hi, may I know what supercharge problem you had before fix? Thanks
What happened to me was a coil pack blew on a plug and then my supercharger stopped as it blew a MOSFET on the circuit board. The symptoms that the supercharger then has was it did not engage or turn on .
Thanks. My car is with 150k km mileage and hope this will not happen to me.
@@megeorge4128 It was a fluke, you should be fine. 150K is normal mate for a Merc, I had 200K on my old CLK, the only reason I dont have it is someone hit the back of me! I now have an SL 3.7L and use it daily doing a weekly commute of 400miles each way! she has 160K on the clock
Ok, thanks for your advice. Hope to see your new videos soon.
Hello Sir, thank you for share your experience. My car is W202 C230k 1997 have same problem then i do like you do (replace mosfet with same new plus replace bearing) but still not working mean the superchareger still buzz). May you have other solution for that case?
Is your bi pass flap working okay? I've had an issue with one, so bought a second hand one and problem resolved
C230K 1997, starts but shuts down due to lack of gas in one second. Pump is new, filter is new. Key lights on mirror do not flash so I presume key is fine. Could you help me guiding me what to check. ?
Have you checked your fuel rail? They can get blocked, I would use a scanner and get codes rather than spending more money at this moment. Good luck
bonjour j'ai problème clk 230 1999 automatique puissance maximum 4000 mille tour minutes ??? merci de me conseiller quoi faire
Im on the 3rd mosfet. The clutch is working fine with a battery. I took it off to give it a visual inspection, but it looks fine, but it keeps blowing the mosfet even without connecting the clutch. Any ideas?
I found it was a voltage spike. Did you protect edge of MOSFET to avoid grounding?
@GrooveOn yeah after using the 3rd mosfet I installed the ecu and connected a test light instead of the clutch and worked plugged the clutch in and blew so the coil must have a short. Can't find a new coil anywhere
Yes but how did you find that that was the faulty part of the ECu ??
Research my friend!! Many weeks of questions through different forums.
@@GrooveOn thank you. I have checked my bypass flap because on idle it makes a tac tac tac noise and I have seen that it closes only on extremely high rpm. Can you help? Is it normal? At how many rpm should it close?
@@standolfo Hi there, the bi-pass valve should be open without movement, the slight movement doesn't sound quite correct. The valve should close around 1200 + revs if the valve is not engaging until really high revs, then I would look at possible changing it mate? (should be some second hand on eBay) if you have a MBStar you can open and close it through the software.
@@GrooveOn thank you so i think its faulty. I have looked but for now they r quite expensive on the bay. What is MBStar? Thank you!
@@standolfo sorry MB Star is Mercedes Benz Star Diagnostic. It is what the main dealer uses, however independant dealers also have the diagnostic. Speak them and see if they can just test your supercharger and airflap to check it is functioning as it should
I am encountering w210 e 200 kompressor P0243 .... m16/7 error. Can you help?
Could be the waste gate flap has failed, you could get a used one fairly cheap
Gracias, i fix my slk230.
You Sir are a LEGEND, very well put together video!!!
I think I have constantly locked SC clutch also - I have also the code P0806 "comp. magnetic coupling." W202 1997 C200K 141kW.
Now Im surfing the net what could be the problem and this video will surely help if I have this problem.
I noticed that your CLK was pre-facelift? Same conifg. as mine. So do both these cars even have the K40 relay unit where the soldering points burn off? Because from looking at your video I dont see it.
That would mean that either my clutch is shot (unlikely as my car is only 54k km) or I have same ecu mosfet issue that you fixed.
Hi there, I recall the K40 relay was more of an issue on the SLK , not the CLK..
@@GrooveOn Understood. I did all the tests today that you did and I have same problem. Took out the ECU and gonna give it a shot once I get the mosfet.
@@mirazas1 really hope it works mate
@@GrooveOn By the way - forgot to report my findings. The mosfet was really blown. And it was blown due to the supercharger magnet coil being rubbed through and shortening. After resoldering the mosfer and replacing the coil it work as it should. Thanks again for the video :)
Would a diagnostic test shows a faulty MOSFET
Hi.Is it BUK101-50DL OR BUK101-50GL What you showing in the video on the ebay picture says buk101-50 dl and in the description you say its a buk101-50gl
It's BUK 101-50GL
What is the difference between dl or gl please?The transistor what arrived for me is a dl not gl is that OK to put it in?
@@GrooveOn Can I insert dl instead of gl?
BUK101 - 50GL is identical to the DL but short circuit load protection max. is 20v, the DL is 35v but the switching rate is faster.
Differences are minimal and should do the job. The "G" denotes a higher standard of component.👍
@@GrooveOn Thanks)))
You are a genius
Dude appreciate the knowledge but The Before car was silver after car is black 🤔
huh? not sure what you mean, my old CLK was always black
oh I see, the video of removing the ecu was from the garage as I did not record it at the time
That makes sense , and again thank you for the information 🙏
For w208 clk 2000 2.0 kompressor how fix this problem ?
The process in my video should be the same as it uses the same ECU
good luck
@@GrooveOn I followed your video carefully but my problem is that the package is not the same as the one in the video and I can't find it
привет уменияа тоже так
hello I have problem clk 230 1999 automatic maximum power 4000 thousand rpm ??? please advise me what to do