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Old 12-30-2010, 03:58 AM
Registered User
Join Date: Jun 2008
Posts: 8
2003 C320 shakes and vibrates

I have a C320 sports that has been shaking erratically when I get to the stop sign or in traffic. It shakes for about 3-5 seconds with the idling going up and then stabilizes. It sometimes pulls gradually like it has lost power when I get off from a stop sign. Any help?
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Old 12-30-2010, 08:07 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
HAve the spark plugs been replaced?

Is the check engine lamp on?

Did that happen after filling with fuel?
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Old 01-10-2011, 05:03 AM
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Join Date: Jun 2008
Posts: 8
The check engine light is off. It jerks on and off. I have not reached my service time yet. any ideas what the cause will?
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Old 01-10-2011, 06:11 AM
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Join Date: Dec 2009
Location: Belmont,NC
Posts: 54
My '99 C280 used to have similar issues!!
Tested the MAF w/good used one...finally ended up being one faulty coil !
Drove as good as new after that!!BTW,also replaced the s/plugs.
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