05 E320 CDI idle surge issue - MBWorld.org Forums

Jul 26, 2012 | 05:56 PM

MPH 350SDL

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Junior Member

Joined: Jul 2008

Posts: 68

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From: NC

1991 350SDL, 2006 E320CDI, 1999 F250 7.3L Crew Cab 4X4

05 E320 CDI idle surge issue

My boss has a 05 E320 CDI that has developed a "surge" or "seat of the pants vibration" at idle. This is more pronounced when you have the A/C system on. The wierd thing is it seems to be intermittant. The car does appear to idle correctly when the climate control system is off. We have tried puttig the car in neutral, then in drive with no changes. You can't feel it once you are moving and are at cruise speed, only when stopped. The A/C system is operating efficently, it's been 100 degrees in NC and it cools the cabin fine.

Any ideas before a trip to the dealership?

Thanks