c220 louder than normal
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Joined: Oct 2012
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C220
c220 louder than normal
My C220 has been louder than normal. There is an extra clatter that I hear from inside the cabin that was not there a few days ago (from outside you can't tell there is a difference in the sound of the engine). It is annoying and specially when revving.
I have looked at the engine (I took the plastic cover off) and there is nothing that would jump out of the ordinary, like oil, fuel stain or soot near the injectors.
I just had to replace the infamous EIS switch less than a month ago and I would hate to have to take it back to the dealer.
What could I check before taking it back? I changed the engine oil (synthetic) about 4000 km ago (about 7 months) but the air filter looks darker brown, could that cause the louder than usual noise?
I have looked at the engine (I took the plastic cover off) and there is nothing that would jump out of the ordinary, like oil, fuel stain or soot near the injectors.
I just had to replace the infamous EIS switch less than a month ago and I would hate to have to take it back to the dealer.
What could I check before taking it back? I changed the engine oil (synthetic) about 4000 km ago (about 7 months) but the air filter looks darker brown, could that cause the louder than usual noise?
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Joined: Mar 2008
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Most air cleaners are a light yellow colour when new. My service manual says change at 70,000 km or 4 yearly. In dusty conditions it is best to change it more regularly.
Cannot see why it would increase engine noise unless it is very dirty.
Engine clatter is very subjective unless it is measured. eg my clatter is louder when standing up against a concrete wall or when in an environment with no sound. Losing sound insulation makes a big difference , Check underneath .
Interested to know how many Km the car has done ?
Cannot see why it would increase engine noise unless it is very dirty.
Engine clatter is very subjective unless it is measured. eg my clatter is louder when standing up against a concrete wall or when in an environment with no sound. Losing sound insulation makes a big difference , Check underneath .
Interested to know how many Km the car has done ?
MBWorld Fanatic!
Joined: Mar 2008
Posts: 3,714
Likes: 56
From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Not run in yet.
Make sure your air cleaner casing is assembled correctly after removal with no leaks.
Interested to know what the dealer says.
How much did the EIS switch put you back ? . Do you have a 2008 ?
JC
Make sure your air cleaner casing is assembled correctly after removal with no leaks.
Interested to know what the dealer says.
How much did the EIS switch put you back ? . Do you have a 2008 ?
JC
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Joined: Jan 2011
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
Check the engine cover as well. The O-rings that hold it in place tend to loosen up and the cover can create quite a racket. just pull it off and get in your car and see if it is quieter. Good luck
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Thread Starter
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Joined: Oct 2012
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C220
thanks,
I will take a look at it but it sounds more like if there was a leak in the exhaust, not like a rattle. Also, it seems to be louder in the morning when the engine is cold. (keep in mind that the weather is between 80 and 90s in here year round)
I will take a look at it but it sounds more like if there was a leak in the exhaust, not like a rattle. Also, it seems to be louder in the morning when the engine is cold. (keep in mind that the weather is between 80 and 90s in here year round)
Newbie
Joined: Jun 2019
Posts: 2
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W204 c220
Same thing
Hello,
i have ave the same problem on my 2009 w204 c220cdi. It sounds like turbo west gate open and close ( noise comes from exhaust) and lack of power!
have you solve your problem? How was it?
thanks in advance
i have ave the same problem on my 2009 w204 c220cdi. It sounds like turbo west gate open and close ( noise comes from exhaust) and lack of power!
have you solve your problem? How was it?
thanks in advance
