supercharger not engaging
Thread Starter
Member
Joined: Jan 2024
Posts: 149
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From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
supercharger not engaging
I took my engine apart over the last few weeks and stripped it down to the head and did a valve job (new valves and lapped them in, didnt need new seats) and surfaced the head and block lightly (cleaning off old gasket gunk) the head and block were both flat and the engine went back together fine. I dont believe the supercharger stopped working because of this as it didnt work well before so when I had the supercharger out I did a visual inspection and it looked fine (no torn up vanes or debris) and I also looked over the valve that controls whether or not the supercharger is feeding into the engine and it also looked fine and was very clean. I checked the poly v belt and all the pulleys/bearings it goes around and they all looked and felt ok along with the belt being in good shape. I did change the small vacuum line that goes off the crankcase breather tube with a nonspecific vacuum line of suitable size but that installed fine and didnt seem to leak. The car has had a secondary air injection code since I got it which obviously is from the supercharger to some capacity so Im assuming thats related to my issue. Im running out of ideas and would appreciate any thoughts yall have for me to look into.
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Joined: Jul 2017
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From: Richmond, VA Metro Area
2005 C230 Sport Sedan-6 Speed Manual
I have a later car with a different super charged engine than the one in your car. My experience may not apply to your situation.
I had to disassemble the plumbing for my super charger on a couple of occasions. The first time I did it, the O-ring on one of the pipes must have fallen off when I removed the pipe. When I reassembled the pipes without the O-ring, the system wasn't airtight. When I started the car, air leaked around the fitting and the decrease in power was significant. I replaced the missing O-ring and that solved the problem.
The second time I disassembled the super charger piping, I noticed that most of the O-rings fit loosely. They had probably deteriorated due to age. I replaced the remaining O-rings, and the car seems to be running fine. If I recall correctly, when I had the first problem, I could air leaking around the fitting.
I had to disassemble the plumbing for my super charger on a couple of occasions. The first time I did it, the O-ring on one of the pipes must have fallen off when I removed the pipe. When I reassembled the pipes without the O-ring, the system wasn't airtight. When I started the car, air leaked around the fitting and the decrease in power was significant. I replaced the missing O-ring and that solved the problem.
The second time I disassembled the super charger piping, I noticed that most of the O-rings fit loosely. They had probably deteriorated due to age. I replaced the remaining O-rings, and the car seems to be running fine. If I recall correctly, when I had the first problem, I could air leaking around the fitting.
Thread Starter
Member
Joined: Jan 2024
Posts: 149
Likes: 6
From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
Im fairly confident that its not gaskets or tubing as I was testing those as I re assembled and I was following the oem manual procedures for re assembly. What type of noise did it make when there was a leak? just so I know what to listen to on the off chance that is my problem.
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w203cl
M111 engine?
If yes, remove the air filter, switch ignition on and take a look on top of the recirculation flap. At around 45s you must see the flap closing and open again fast. This is the flap calibration procedure.
If this does not work you get the SAI error P0410 and of cause no boost.
If yes, remove the air filter, switch ignition on and take a look on top of the recirculation flap. At around 45s you must see the flap closing and open again fast. This is the flap calibration procedure.
If this does not work you get the SAI error P0410 and of cause no boost.
Thread Starter
Member
Joined: Jan 2024
Posts: 149
Likes: 6
From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
M111 engine?
If yes, remove the air filter, switch ignition on and take a look on top of the recirculation flap. At around 45s you must see the flap closing and open again fast. This is the flap calibration procedure.
If this does not work you get the SAI error P0410 and of cause no boost.
If yes, remove the air filter, switch ignition on and take a look on top of the recirculation flap. At around 45s you must see the flap closing and open again fast. This is the flap calibration procedure.
If this does not work you get the SAI error P0410 and of cause no boost.
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w203cl
If i find that this is indeed why I get no boost what would the next step be? do I just replace the part or are there other common components that can lead to the failure of the air recirculation flap. and if I do decide to replace it, would getting one off a scrapped car (obviously that has not been too exposed to the elements) be a safe bet? edit: yes it is the M111 not sure of the version but if that matters I can look it up again.
You can close the flap with your fingers and the flap must snap open if you put your fingers away. If the flap only moves slow, you can open the flap mechanic, remove the motor and clean/grease everything.
There is somewhere a video on this forum or on benzworld to show the difference. Usually this is the main error and they all have this after some time. .
PS found the video
Last edited by 112233; Jan 24, 2024 at 03:27 AM.
MBWorld Fanatic!
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From: Richmond, VA Metro Area
2005 C230 Sport Sedan-6 Speed Manual
Im fairly confident that its not gaskets or tubing as I was testing those as I re assembled and I was following the oem manual procedures for re assembly. What type of noise did it make when there was a leak? just so I know what to listen to on the off chance that is my problem.
Good luck.
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Thread Starter
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Joined: Jan 2024
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From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
If you have the P0410 error, you must first delete it, otherwise the flap will not be adjusted and so not work.
You can close the flap with your fingers and the flap must snap open if you put your fingers away. If the flap only moves slow, you can open the flap mechanic, remove the motor and clean/grease everything.
There is somewhere a video on this forum or on benzworld to show the difference. Usually this is the main error and they all have this after some time. .
PS found the video
You can close the flap with your fingers and the flap must snap open if you put your fingers away. If the flap only moves slow, you can open the flap mechanic, remove the motor and clean/grease everything.
There is somewhere a video on this forum or on benzworld to show the difference. Usually this is the main error and they all have this after some time. .
PS found the video
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Senior Member
Joined: Apr 2009
Posts: 317
Likes: 49
w203cl
If the mil is on, you have to delete the error first, otherwise the flap will not come up again. A simple OBD scanner should work.
Remove the motor with the two torx screws and clean everything inside and some oil should do the trick.
Remove the motor with the two torx screws and clean everything inside and some oil should do the trick.
Last edited by 112233; Jan 24, 2024 at 03:56 PM.
Thread Starter
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Joined: Jan 2024
Posts: 149
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From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
so i had it out today and I pulled the whole thing apart and took out the motor core and it all seemed super clean, the only issue I could see or feel was the bearing on the shaft of the motor. I threw it back together anyways because it still feels better than before and it ran like it was supposed to but then I shut the car off to go to class and now it doesnt work again. I have two options to try as of now, I can try to clear the code and see if it fixes it again or I can pull the flap assembly back out and either try to pull that bearing out or find a new one. Would I even be able to find parts for inside that flap assembly? Its not complicated but I havent found anything.
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Joined: Jun 2002
Posts: 7,263
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From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
What model car, what engine? 2.3 or 1.8?
I took my engine apart over the last few weeks and stripped it down to the head and did a valve job (new valves and lapped them in, didnt need new seats) and surfaced the head and block lightly (cleaning off old gasket gunk) the head and block were both flat and the engine went back together fine. I dont believe the supercharger stopped working because of this as it didnt work well before so when I had the supercharger out I did a visual inspection and it looked fine (no torn up vanes or debris) and I also looked over the valve that controls whether or not the supercharger is feeding into the engine and it also looked fine and was very clean. I checked the poly v belt and all the pulleys/bearings it goes around and they all looked and felt ok along with the belt being in good shape. I did change the small vacuum line that goes off the crankcase breather tube with a nonspecific vacuum line of suitable size but that installed fine and didnt seem to leak. The car has had a secondary air injection code since I got it which obviously is from the supercharger to some capacity so Im assuming thats related to my issue. Im running out of ideas and would appreciate any thoughts yall have for me to look into.
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
OK so I see m111. Did you remember to plug the recirc flap back in on reassembly? Same with MAF? If it worked before disassembly you should not need a new flap..Wish you were in my neck of the woods to help with M111 head gasket lol.
Last edited by C230 Sport Coup; Jan 25, 2024 at 06:57 AM.
Thread Starter
Member
Joined: Jan 2024
Posts: 149
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From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
yes theyre both plugged in, I suspect that theres a bad motor bearing in the flap assembly because I pulled it apart and cleaned it and it worked for a little bit and then I shut the car off and when I started it again it was back to not working. I ordered a used part off ebay so Ill see if that fixes it when that gets here. Im in Illinois so if youre around here Id be glad to take a weekend to help with a head gasket. Its super easy in my opinion although the only other head gasket ive done was on a 85 jaguar and the head had corroded onto the studs and required 4 12 ton jacks to push off. I also have the mercedes software (on a virtual machine) so I was able to follow the recommended procedure and could share that with you as well.
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w203cl
Have you oiled or greased the motor bearing? I did and it made a big difference. Delete the error code again, do the following
Ignition on - 15 s
Ignition off - 5s
Ignition on - 50 s
Ignition off - 5 s
Ignition on - 5 s
Start
This is the desired calibration procedure for all flaps combined. If you have boost now, the next days switch the ignition on for 1-2 s before starting the engine. If the error is gone, it is definitely the flap mechanics.
.
Ignition on - 15 s
Ignition off - 5s
Ignition on - 50 s
Ignition off - 5 s
Ignition on - 5 s
Start
This is the desired calibration procedure for all flaps combined. If you have boost now, the next days switch the ignition on for 1-2 s before starting the engine. If the error is gone, it is definitely the flap mechanics.
.
Senior Member
Joined: Apr 2009
Posts: 317
Likes: 49
w203cl
Background: At cold start the flap must close between ignition on and start for the engine to get the pressure for the SAI system. If the flap is slow, the ECU line "Is flap closed" throws an error and the flap is switched off and P0410 is recorded.
Thread Starter
Member
Joined: Jan 2024
Posts: 149
Likes: 6
From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
that actually makes a ton of sense, does that mean theoretically you could combat a slow flap by leaving the key in the third position longer?
Thread Starter
Member
Joined: Jan 2024
Posts: 149
Likes: 6
From: Carbondale Illinois
2002 mercedes c230 kompressor coupe (CL203)
Have you oiled or greased the motor bearing? I did and it made a big difference. Delete the error code again, do the following
Ignition on - 15 s
Ignition off - 5s
Ignition on - 50 s
Ignition off - 5 s
Ignition on - 5 s
Start
This is the desired calibration procedure for all flaps combined. If you have boost now, the next days switch the ignition on for 1-2 s before starting the engine. If the error is gone, it is definitely the flap mechanics.
.
Ignition on - 15 s
Ignition off - 5s
Ignition on - 50 s
Ignition off - 5 s
Ignition on - 5 s
Start
This is the desired calibration procedure for all flaps combined. If you have boost now, the next days switch the ignition on for 1-2 s before starting the engine. If the error is gone, it is definitely the flap mechanics.
.
i tried to get some oil in it but I couldnt take the sprocket off because Im at college and all my bearing pressing tools are at home that I would use for getting the sprocket motor shaft and bearing apart. It definitely closed way faster after I was done though so I may have done enough for now.
Last edited by an6dk; Jan 25, 2024 at 03:17 PM.
