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387 Posts
Discussion Starter #1
Any idea why my 430 idles rough? I'm out of warranty and want to ask on here so I don't have to drop silly money at the dealer. Thanks in advance for any help.
 

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CLK / ML
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4,077 Posts
RE: Idle

When was your last oil change ? If it's rough and you can hear a little knocking sound, then you need to add or replace oil asap.
 

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1998 CLK320
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89 Posts
check your engine mounts

Common problem....check your engine mounts...you can do this by putting the car in drive and stepping on the brake and gas. If the engine flys up with no visible restraint on one, or both sides, you need new engine mounts.
 
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