Tensioner
Rattle at Start-up
Thread Starter
Member
Joined: Jan 2003
Posts: 86
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From: Ontario, Canada
C230 Coupe 2002
Rattle at Start-up
Has anyone had this problem and had it diagnosed. My 02 2.3 liter kompressor does it if it sits for a week or so. I have low klms ( 19,000 ) I am still under warranty and would like to know what causes this. Is it the timing chain or lifters ????
Thread Starter
Member
Joined: Jan 2003
Posts: 86
Likes: 0
From: Ontario, Canada
C230 Coupe 2002
Tension Pully
If it is the pully that rattles on start up is it a problem to be repaired or is it normal? Second question is, why does it only do it if the car is not driven for a week. Thanks for any info !
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Joined: Aug 2005
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Originally Posted by TonyG230
Has anyone had this problem and had it diagnosed. My 02 2.3 liter kompressor does it if it sits for a week or so. I have low klms ( 19,000 ) I am still under warranty and would like to know what causes this. Is it the timing chain or lifters ????
When I start my car when its cold it make this awful sound like you described but it goes away after a few mins when the engine gets warmer. I brought it to the dealer and they told me its normal. hope this helps.
You still have the Factory waranty let them check it out it's free anyways
good luck!!
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Joined: Sep 2002
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My car did this also. I beleive that the problem is a hydraulic cam chain tensioner. The oil drains out of the tensioner when it sits for extended periods of time. Once the tensioner sees oil pressure, and it re-primes itself, the chain stops rattling. MB claims that there is nothing wrong!
Member
Joined: Feb 2006
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02' C230k Sport Coupe
Originally Posted by nov0798
My car did this also. I beleive that the problem is a hydraulic cam chain tensioner. The oil drains out of the tensioner when it sits for extended periods of time. Once the tensioner sees oil pressure, and it re-primes itself, the chain stops rattling. MB claims that there is nothing wrong!
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Joined: Sep 2002
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mb says it normal, BUT I dont beleive it! Have them put in a new chain tensioner as good faith. Also make sure you take it in and complain about it so that if it does break, you have record that it was brought to their attention early on.
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Joined: Apr 2006
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From: NSW - Australia
2003 - White C200 K, Previous (2003 White WRX - Modded, 1996 200sx - Modded)
Hi,
I recently had the exact same issue.
Luckily my car was under warranty and got the part (cam chain) replaced.
It is definately not normal and should be fixed.
Anyway, a Benz shouldnt sound like that.
Apparently it is quite expensive to get done out of warranty, so if your still covered I would push to get it done now.
I recently had the exact same issue.
Luckily my car was under warranty and got the part (cam chain) replaced.
It is definately not normal and should be fixed.
Anyway, a Benz shouldnt sound like that.
Apparently it is quite expensive to get done out of warranty, so if your still covered I would push to get it done now.
Last edited by white_03; Jun 12, 2006 at 10:05 PM.
