C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Supercharger Problem: Does not work in cold weather

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Old Nov 22, 2012 | 11:17 PM
  #1  
Eau_Rouge's Avatar
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
Supercharger Problem: Does not work in cold weather

I've got a strange problem that has occurred for the past 4 straight years. When the air temperature gets close to and below 15 degrees C, the supercharger does not provide boost. This usually lasts the entire winter until the weather warms up in the spring. When the weather warms up again, the supercharger starts working again and provides boost again problem free until the temperature drops again in the fall. Very strange. I've taken it to the dealer and they can't figure it out. Anyone else has this issue?

My car is a 2002 C230 6 speed.
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Old Nov 23, 2012 | 10:12 AM
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From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
i wouldnt go to the dealership for anything

check engine light?

could be anything
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Old Nov 23, 2012 | 01:18 PM
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You have an M111 engine. How do you know that the supercharger looses boost? Symptoms? Does the car overfuel & smoke during winter???
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Old Nov 23, 2012 | 01:27 PM
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
Check engine light is on. The car's been scanned but the dealer doesn't know what to do. Another mechanic that I spoke to about the issue thinks it may be the clutches in the supercharger...as it gets colder they may not operate as intended. This theory still doesn't explain why when the car warms up, the supercharger doesn't start producing boost again. Like I said, very strange.
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Old Nov 23, 2012 | 01:29 PM
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
Originally Posted by Glyn M Ruck
You have an M111 engine. How do you know that the supercharger looses boost? Symptoms? Does the car overfuel & smoke during winter???
No smoke at all from the tail pipe. In fact the car passes Ontario's emmission test with flying colors with this condition.
I've never felt it loosing boost. I just turn on the car and the supercharger is either producing boost or it isn't...on or off.
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Old Nov 23, 2012 | 01:34 PM
  #6  
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From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
whats the codes?
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Old Nov 23, 2012 | 02:34 PM
  #7  
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
Originally Posted by sammydragon3
whats the codes?
I'll see if I can dig up some old documents from the last time I had this looked into. Admittidly after spending about 2 years on and off looking into this, I gave up on it as the power loss didn't bother me too much during the winter. Now that the car is going to be retired from daily driver use I'd like to do a semi restoration on it and fix all faults.

I'll see what I can find.
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Old Nov 26, 2012 | 10:46 PM
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
I found a test log from the last time the car was scanned at the dealer, about two years ago in the fall when the my supercharger problem started to occur as the temp dropped. Codes are as follows
P0130
P0301
P0302
P0303
P0304
P0410
P0420

I looked into what these mean, I know, not good.
I then took the car to another mechanic in the spring when the temp was above 20 degrees c consistently and asked that the check engine light be cleared and sure enough, it didn't come back on until the fall when the temp dropped again. That being said, I didn't know what to make of this, got frustrasted and continued to drive the car thinking when it dies, I'll just replace it as I was sick of sinking money into it without any answers. Now I already have another daily driver and want to keep my c230 (still running well and passing emissions at 371,xxx km) and do a restoration/drive it summers only. I'd like to get everything fixed.

That being said, it's going in the garage and I'm going to start looking at everything in detail.

One final comment, regarding the supercharger, something has to be causing the bypass to remain open when the temp drops...

I'll keep everyone posted on what I find.
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Old Nov 26, 2012 | 10:55 PM
  #9  
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From: chicago
2005 c230 kompressor 2003 s500 94 wrangler
first code is usually an o2 sensor

the p0301-04 are random misfires

410 is secondary air code

420 is cat

well if type in google how to reset the recirulating air flap for m111 u can manually reset that flap and get it to work

all these codes are still in the computer causing u to run rich hense losing gas mileage
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Old Nov 26, 2012 | 11:09 PM
  #10  
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From: Toronto, ON
2002 C230 Coupe & 2010 C300 Sport
Originally Posted by sammydragon3
first code is usually an o2 sensor

the p0301-04 are random misfires

410 is secondary air code

420 is cat

well if type in google how to reset the recirulating air flap for m111 u can manually reset that flap and get it to work

all these codes are still in the computer causing u to run rich hense losing gas mileage
Thanks, I'll look into resetting the recirculating air flap. Although I've had the car since 2005, other than basic maintenance such as oil/filter changes, I don't know much about these cars.
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Old Jan 16, 2013 | 10:57 PM
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2003 C32 AMG WAGON W203.265 (De)
There was an IC pump issue on my C32 last month.
After changing IC pump and check the fuse #5 and relay in the rear SAM, the supercharager still didn't work.

The engineer assume the rear SAM or front SAM have some problem but no error code beside (M44 IC pump power short ground etc...). The engineer add a relay between front fuse box (fuse of key start position) and IC pump using the wire directly to battery.
When the key is on ,the IC pump is started with battery power without pass through SAMs.
But the supercharager still wasn't worked.

Thanks God!
Finally , acoording the fuse chart in this site, I rechecked front and rear fuse #5, #7 #51(looked normal and exchanged with #49 the same amps) and #18 (there is NO relay on C and D in the rear SAM) in the fuse box and found my #18 fuse was broken.

After replace #18 (exchange with #5 7.5A) and all function runs well and got lose power back!

This result shows the SAM and FUSEs are different from years!
Thank you for who provide fuse chart in this side.
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