C32 AMG, C55 AMG (W203) 2001 - 2007

Chirping sound when cold

Old Feb 2, 2008 | 11:53 PM
  #1  
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C32 AMG
Question Chirping sound when cold

I just hit the 60000mile mark and when I started the car and i heard chirping (shrieking?) sound from the engine that gets louder as you rev up the engine, it will go away once engine warms up.

My current remedy is to shut the engine and restart again, it will usually go away

Btw, this problem is intermittent

anyone care to shed a light? i suspect loose belt
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Old Feb 3, 2008 | 02:02 AM
  #2  
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Not an AMG :(
Originally Posted by AMGV6K
I just hit the 60000mile mark and when I started the car and i heard chirping (shrieking?) sound from the engine that gets louder as you rev up the engine, it will go away once engine warms up.

My current remedy is to shut the engine and restart again, it will usually go away

Btw, this problem is intermittent

anyone care to shed a light? i suspect loose belt
Do you smell a belt burning?
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Old Feb 3, 2008 | 04:16 AM
  #3  
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Originally Posted by boohooramblers
Do you smell a belt burning?
I was in the car with windows down when i heard the chirp, i have not noticed any burning smell yet though
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Old Feb 3, 2008 | 10:16 AM
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a C32 AMG & S-Works Tarmac
Originally Posted by AMGV6K
I was in the car with windows down when i heard the chirp, i have not noticed any burning smell yet though
You probably would not smell a burning belt if it is slipping to to age or glazing. What you have described sound like a classic belt issue. It'll run about $100 to replace, if memory serves me.
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Old Feb 3, 2008 | 10:49 AM
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Yes
sounds like a belt. depends on what belt needs to be replaced when offering a $ estimate.
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Old Feb 3, 2008 | 11:02 AM
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2002 c32
I get this as well when it's REALLY cold (MN -10F last week) so I don't think our issues are related if you're in Australia Mine goes away as well - take video of it if you can with the hood up.
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Old Feb 4, 2008 | 03:12 AM
  #7  
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chirping again this morning, pop the hood and engine cover, took vid with phone. will post later.
the noise seems to be coming from the s/c pulley (worn bearings?)

i shut the engine and restart, the noise was gone...
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Old Feb 4, 2008 | 09:23 PM
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It could be - very common problem with a really easy fix if it is.
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Old Feb 5, 2008 | 03:25 AM
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update;

the chirping noise is gone as soon as s/c engages, so it couldn't be worn bearings, the noise only present during stationary idle/rev up
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