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M113 V8 Kompressor Platform Technical discussion relating to models sharing the M113 V8 5.5L Kompressor. Including SL55 AMG, CL55 AMG, S55 AMG, E55 AMG, CLS55 AMG, G55 AMG, SLR (M155).
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Old Jun 22, 2012 | 09:15 PM
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jt2ma71's Avatar
jt2ma71
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From: Vancouver, BC
Obsidian Black E55
W211 E55
Hi,

Started noticing I am having abit of a rough idle. Especially when cold i dont notice it as much in gear but in neutral idling. Even when its warm it has a bit of a rough idle. If i bring the rpm up to 2000rpm or higher when its warm it revs fine, but i notice when its cold and i bring the rpms up it still has a bit of a rough idle. I didnt see any air intake leaks, the car has about 55K miles on it and is a 2003.

Any suggestions on where to start? Plugs seemed OK so i didnt change them. I only checked one per bank though.
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Old Jun 24, 2012 | 10:30 AM
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moosejaw
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Motor mounts?
I have the same issue
I upgraded to colder pugs recently
Didn't go away
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