sprockett

Hi all,

My W203 C200 Kompressor (2001, M111.955 engine) has a noisy belt.
Unfortunately I don't have access to good independent mechanics, and the stealership will charge even more. So I have no choice but to DIY.


Searching online, the problem is likely one of the following:
-belt tensioner pulley
-idler pulley
-steering pump
-aircon compressor pump


I am facing a couple of problems:

1. Can't find repair manual for this particular car / engine combi. I've seen W203 Service manuals (haynes + merc DVD) but they are for the M112 engine variation (USA).

2. How do I find the right parts to give me the parts specific to my model?

I've been searching online for a few hours to no avail!

Appreciate any guidance.

Thanks!

KSKarl

Easiest way to check is to remove the belt, then spin each pulley to see which is making the noise. You pull the air filter housing to get access to the belt.

sprockett

Hi KSKarl,

Thanks for the reply!!
Would this be the air filter:


If so, would you be able to suggest any search terms I could use to find the disassembly instructions?

In the last hour of more searching, I've realised that the M111.955 engine is also on the C230K Coupes (early 2000s). So I've also tried searching for C230K repair manuals, but to no avail.

Latest thing I've found are the WIS / ASRA manuals on Ebay, which I've gone ahead and purchased, but they will take some time to reach me.

KSKarl

Yes, that's the air filter. Disconnect the air ducts from both ends to remove it.
Sorry for the late reply, I was off line for a few days.

KSKarl

Pushed the wrong button there...
After you get the air filter housing out, pull back the belt tensioner to get the belt off. Then you can see how each pulley spins.

sprockett

Thanks KSKarl,

I managed to do this and it was teh steering pump bearing that was shot.
Replaced it and things are good

Thanks again.

chanyat123

KSKarl,
I have the same problem, but I do not know how to get the air filter housing out. You said that( Pushed the wrong button there....) what it means ? there are three grommets underneath of housing .Can you give me some crack method. Thank you very much!

C230 Sport Coup

Pull. Assuming we're talking M111 here, just pull up hard.
Remove the bolt on the plastic intercooler hose, and the intake clamp and pull.

chanyat123

Thank your quick reply, I will try to do it and report later.

huotalicusC200K

hey sprocket how did you manage to remove the air filter housing
I'm having trouble getting it out I have removed the clamp that hold it to the supercharger silencer but still cannot remove the housing assembly
can you help me or anyone help me please