W203 C200K loss of boost sometimes
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Newbie
Joined: Oct 2017
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w203 c200
W203 C200K loss of boost sometimes
Hello!
I have this weird problem with my C200K,
Sometimes when i start the car it runs normally and accelerates well etc.
But like 50% of time when i start my car and start moving, it doesnt accelerate like it use to do. It feels like the supercharger is not giving any boost; i still can rev up to max rpm, so its not in limp mode i assume.
But, if i turn my ignition to position 2, wait for awhile, then back to 1 and then 2 and wait for a bit before starting my car, like 95% of time, the supercharger starts normally and i have no problems at all.
Tips where i start looking for?
Thanks,
I have this weird problem with my C200K,
Sometimes when i start the car it runs normally and accelerates well etc.
But like 50% of time when i start my car and start moving, it doesnt accelerate like it use to do. It feels like the supercharger is not giving any boost; i still can rev up to max rpm, so its not in limp mode i assume.
But, if i turn my ignition to position 2, wait for awhile, then back to 1 and then 2 and wait for a bit before starting my car, like 95% of time, the supercharger starts normally and i have no problems at all.
Tips where i start looking for?
Thanks,
Newbie
Joined: Oct 2017
Posts: 6
Likes: 1
C200 Kompressor
sounds familiar
oh damn, sounds like the same issue that i have with my -01 kompressor. well sorry to say i havent found any solution to mine yet. hope the thread starts flying soon..
So, my supercharger sounds like it doesnt give any boost either, this usually happens at the mornings when i drive to work, might be because the engine is cold idk. but mostly when i leave work 8 hours after, surprise, i got the boost back.
Good luck getting yours working, reply to this thread if u find an solution, and lets hope we have the same problem
So, my supercharger sounds like it doesnt give any boost either, this usually happens at the mornings when i drive to work, might be because the engine is cold idk. but mostly when i leave work 8 hours after, surprise, i got the boost back.
Good luck getting yours working, reply to this thread if u find an solution, and lets hope we have the same problem
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Well on the Kompressors the boost is controlled by this valve,
A1110980109= Air Recirc Supercharger 1110980050 (interchangeable)
which can be easily accessed on the 2.3L
but not on the 1.8L.
It's basically a throttle body.
On the 2002 Coupe like mine, it's visible with air cleaner box removed, a
the 'learning in' or reset procedure can be performed.
On the 1.8 it's bolted onto the supercharger and the
'learning in' or reset procedure can only be performed
via SDS. or at least not without some bit of work to get to it.
There's a youtube video on that.
If that fails, it's likely the valve that's failing.
Watched some videos yesterday,, of a
guy Victor from restoreyourmercedes.com or something like that./
The wires inside these, the insulation was completely gone,
a side effect of using biodegradable insulation.
I know, wtf? It's like the non lead solder they use all over the place like
in the door IR sensors for the summer mode feature.
(Opens all the windows...but you have to fix the sensor most likely...check benzworld for that one)
I sent him a note, but so far no reply, because I'm having the same problem.
I bought a used one, which works sometimes, vs. the old one that had quit.
A new one can be had for around $300-$400 if you search 1110980050.
Curious how much he'd charge to repair...?
To manually perform the 'learning in' or reset procedure, see below.
This take 2 people.
AF07.61-P-2000-01A Learning in recirculated air flap actuator
ENGINE 111.981 in MODEL 203.747
1 When ignition is switched off press flap slightly past limp home (wide open no boost)
position. (means use your fingers)
90° position must be changed manually (means use your fingers,. just push it 20 degrees or so, not straight until the key is turned and the flap closes) . The processor
shut-off delay has a duration of approx. 5 seconds.
2.Switch on ignition for approx. 15 seconds, switch ignition (2nd click)
back off again and wait for processor shut-off delay. (5 seconds)
3. Switch ignition on for approx. 45 seconds, switch ignition (Don't press the flap this time)
back off again and wait for processor shut-off delay.
The learn-in procedure for the recirculated air flap is then
completed.
When it works, your beast will return! If you replace it you will definitely need to perform this.
Also here's this thread...
https://mbworld.org/forums/c-class-w...dure-m111.html
A1110980109= Air Recirc Supercharger 1110980050 (interchangeable)
which can be easily accessed on the 2.3L
but not on the 1.8L.
It's basically a throttle body.
On the 2002 Coupe like mine, it's visible with air cleaner box removed, a
the 'learning in' or reset procedure can be performed.
On the 1.8 it's bolted onto the supercharger and the
'learning in' or reset procedure can only be performed
via SDS. or at least not without some bit of work to get to it.
There's a youtube video on that.
If that fails, it's likely the valve that's failing.
Watched some videos yesterday,, of a
guy Victor from restoreyourmercedes.com or something like that./
The wires inside these, the insulation was completely gone,
a side effect of using biodegradable insulation.
I know, wtf? It's like the non lead solder they use all over the place like
in the door IR sensors for the summer mode feature.
(Opens all the windows...but you have to fix the sensor most likely...check benzworld for that one)
I sent him a note, but so far no reply, because I'm having the same problem.
I bought a used one, which works sometimes, vs. the old one that had quit.
A new one can be had for around $300-$400 if you search 1110980050.
Curious how much he'd charge to repair...?
To manually perform the 'learning in' or reset procedure, see below.
This take 2 people.
AF07.61-P-2000-01A Learning in recirculated air flap actuator
ENGINE 111.981 in MODEL 203.747
1 When ignition is switched off press flap slightly past limp home (wide open no boost)
position. (means use your fingers)
90° position must be changed manually (means use your fingers,. just push it 20 degrees or so, not straight until the key is turned and the flap closes) . The processor
shut-off delay has a duration of approx. 5 seconds.
2.Switch on ignition for approx. 15 seconds, switch ignition (2nd click)
back off again and wait for processor shut-off delay. (5 seconds)
3. Switch ignition on for approx. 45 seconds, switch ignition (Don't press the flap this time)
back off again and wait for processor shut-off delay.
The learn-in procedure for the recirculated air flap is then
completed.
When it works, your beast will return! If you replace it you will definitely need to perform this.
Also here's this thread...
https://mbworld.org/forums/c-class-w...dure-m111.html
Last edited by C230 Sport Coup; Oct 26, 2017 at 01:31 PM.
Newbie
Joined: Oct 2017
Posts: 6
Likes: 1
C200 Kompressor
Could this be the problem, when the loss of superchargers power only happens for me when the engine is cold.
It usually starts working when i drive like 15km, get out of the car, start the engine again and voila the power is back.
+ The engine is 2.0, M111.955, not 1.8
Heard from someone it could be crankshaft, camshaft sensors..
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Well on a cold start, the valve is open/closed (not sure which), and pumps the air to heat the catalyst.
It's supposed to close/open (opposite state) after 30-60 seconds. Hence the noisy startup you get with these engines.
So, it seems perhaps, yours is sticking. Try doing what I described above, and perhaps clean it up as well, with a little
MAF cleaner or electrical cleaner.
Non SC cars use an electric pump to accomplish the same thing on later models, and make a whirring sound on startup.
It's supposed to close/open (opposite state) after 30-60 seconds. Hence the noisy startup you get with these engines.
So, it seems perhaps, yours is sticking. Try doing what I described above, and perhaps clean it up as well, with a little
MAF cleaner or electrical cleaner.
Non SC cars use an electric pump to accomplish the same thing on later models, and make a whirring sound on startup.
Could this be the problem, when the loss of superchargers power only happens for me when the engine is cold.
It usually starts working when i drive like 15km, get out of the car, start the engine again and voila the power is back.
+ The engine is 2.0, M111.955, not 1.8
Heard from someone it could be crankshaft, camshaft sensors..
It usually starts working when i drive like 15km, get out of the car, start the engine again and voila the power is back.
+ The engine is 2.0, M111.955, not 1.8
Heard from someone it could be crankshaft, camshaft sensors..
Last edited by C230 Sport Coup; Oct 31, 2017 at 04:29 PM.
Newbie
Joined: Oct 2017
Posts: 6
Likes: 1
C200 Kompressor
Update
Well on a cold start, the valve is open/closed (not sure which), and pumps the air to heat the catalyst.
It's supposed to close/open (opposite state) after 30-60 seconds. Hence the noisy startup you get with these engines.
So, it seems perhaps, yours is sticking. Try doing what I described above, and perhaps clean it up as well, with a little
MAF cleaner or electrical cleaner.
Non SC cars use an electric pump to accomplish the same thing on later models, and make a whirring sound on startup.
It's supposed to close/open (opposite state) after 30-60 seconds. Hence the noisy startup you get with these engines.
So, it seems perhaps, yours is sticking. Try doing what I described above, and perhaps clean it up as well, with a little
MAF cleaner or electrical cleaner.
Non SC cars use an electric pump to accomplish the same thing on later models, and make a whirring sound on startup.
UPDATE:
So, i took my car to workshop. Got the code P0410, they said it's the air flap..
They did the recirculation relearn prodecure via computer.
So, i really hoped this would fix the problem
Nah, it didn't.
The same day i was driving on the highway, everything was well so far..
Suddenly, when i was going to overtake the car in front of me, i felt that the boost was gone. This was the first and only time that the boost was lost while driving the car.
So, after awhile i pulled over and checked the codes and had a new one. P0234 Supercharger wastegate solenoid A.
Next thing i did, i cleaned the air flap and did the relearning again, didn't work, the boost was missing the very next morning.
But, it seems working always when its a little bit warmer, ill try to explain how.
Cold morning, 0-2 celsius, cold start - supercharger not engaging
Cold morning, 0-2 celsius, driving for 20minutes - restarting the car and the supercharger is engaging normally
Little bit warmer day, cold start, 4-7 celsius - supercharger engaging normally.
That's why i've been questioning, could it be anything else?
Does it make any sense for you?
I really want to find out, could it be anything else that makes this happen, before spending money on the air flap and realizing it didn't help.
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Newbie
Joined: Oct 2017
Posts: 6
Likes: 1
C200 Kompressor
Im meaning that, everytime i step in my car, no matter if the engine is cold or the weather is cold vice verca etc. , i can tell with 99% accuracy, will i have the supercharger engaging or not.
This is why i wanna be 100% sure, it's the airflap..
I bet, i can't be the only one ever with the same symptoms here.
Anyone?
This is why i wanna be 100% sure, it's the airflap..
I bet, i can't be the only one ever with the same symptoms here.
Anyone?
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MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
It wasn;t until I managed to get a NOS Siemens MAF that everything was working correctly.
I tried several other MAF's and they all were garbage.
But finding an NOS Siemens is basically impossible now.
I also replaced the Recirccc valve....twice.
At the bargain price of $350 on Rockauto.
2nd one was warranty. Liffetime warrranty.
I tried several other MAF's and they all were garbage.
But finding an NOS Siemens is basically impossible now.
I also replaced the Recirccc valve....twice.
At the bargain price of $350 on Rockauto.
2nd one was warranty. Liffetime warrranty.
Last edited by C230 Sport Coup; Apr 1, 2025 at 01:53 PM.
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