05 E320 CDI idle surge issue
Thread Starter
Junior Member
Joined: Jul 2008
Posts: 68
Likes: 5
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
Any ideas before a trip to the dealership?
Thanks
Super Member
Joined: Jul 2010
Posts: 625
Likes: 4
From: Australia
X350d GLE500e 2017, ML350 BlueTec 2012(sold), A200 2013, ML350CDI 2009(sold), Aston Martin DB7 2003
Could be imbalance in the A/C pump. Bent shaft or similar. It would be intermittant as the AC cycles on/off as you drive.
Thread Starter
Junior Member
Joined: Jul 2008
Posts: 68
Likes: 5
From: NC
1991 350SDL, 2006 E320CDI, 1999 F250 7.3L Crew Cab 4X4
Carsy,
I appreciate your thought process, but if we need to go through all of that, it will go to the dealer. This would take the a/c out of the picture.
I appreciate your thought process, but if we need to go through all of that, it will go to the dealer. This would take the a/c out of the picture.
