C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Rough Idle

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Old 06-28-2006, 11:06 PM
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Rough Idle

Has anyone experience there car idling very roughly at a stop light or during traffic??? my car seem to do that from time to time. i dk whats wrong with it and when it idles that rough and i start to move again i feel that the car takes sometime to accelerate.... is there anything i can do? is this covered under warranty?

thanx
Old 06-28-2006, 11:21 PM
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C55 ///AMG, 535xi
recent few weeks I have rough idle, and slower acceleration...i duno whats wrong!? if you have any idea, post updates?
Old 06-28-2006, 11:59 PM
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white and whiter
rough idle on the V6s are due to collapsed engine mount. just go to your dealership have them check it out.
Old 06-29-2006, 02:02 AM
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2003 C-Class Sportcoupe
My car has a rough idle too, but that's because of the Shrick sport camshafts.
Old 06-29-2006, 02:27 AM
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white and whiter
lol...have you dyno it yet? how much hp gain is expected from shrik cam?
Old 06-29-2006, 02:29 AM
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2006 E55 and 2002 E320
First of all, what is considered a rough idle? Sometimes, the car seems to vibrate a bit excessively when the car is idling in front of a red traffic light? Does this constitute as rough idling?

Secondly, is it possible to inspect these engine mounts yourself with a flashlight under the hood? Or do they need to check under the car at the dealership?
Old 06-29-2006, 07:34 AM
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Originally Posted by FrankW
rough idle on the V6s are due to collapsed engine mount. just go to your dealership have them check it out.

ya i'll be visitin the dealership next week to get a couple of things done and i'll have them look at the engine mounts too. Do you know if this is covered under warranty??? thanx
Old 06-29-2006, 11:41 AM
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C55 ///AMG, 535xi
engine mounts should be covered under warranty, I had a few changed on my W163

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