MBTech208..2001 S600 rough idle
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Senior Member
Joined: Nov 2001
Posts: 306
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From: Atlanta
2004 S 600
MBTech208..2001 S600 rough idle
I've taken my car in twice because at idle (in park or D) and (AC on or off) car shakes or wiggles. Atlanta Classic say they can't find anything......but for the first 18k this engine was as smooth as a turbine!
Any ideas??
Also, don't know if it's related, I get bad vibration from 78 to 81 mph.....in my seat and the empty passenger headrest almost shakes out of the seat. Just put new tires on and still happens....had them on-car high-speed balanced to 140mph......this also happens on all road surface conditions.
Thanks in advance for your help.
Any ideas??
Also, don't know if it's related, I get bad vibration from 78 to 81 mph.....in my seat and the empty passenger headrest almost shakes out of the seat. Just put new tires on and still happens....had them on-car high-speed balanced to 140mph......this also happens on all road surface conditions.
Thanks in advance for your help.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,340
Likes: 22
From: Southern California, USA
2003 CL55 AMG
Re: MBTech208..2001 S600 rough idle
Originally posted by MercManiac
I've taken my car in twice because at idle (in park or D) and (AC on or off) car shakes or wiggles. Atlanta Classic say they can't find anything......but for the first 18k this engine was as smooth as a turbine!
Any ideas??
I've taken my car in twice because at idle (in park or D) and (AC on or off) car shakes or wiggles. Atlanta Classic say they can't find anything......but for the first 18k this engine was as smooth as a turbine!
Any ideas??
Sounds like a bad MAF (Mass Air Flow Sensor) may be the culprit. Has your dealer tested the MAF ?
Also, have you tried other brands of fuel ? I had a similar rough idle problem that was very inconsistant. Only happened at idle every once in a while. I Changed brands of fuel and it went away.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 2,332
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From: Bloomington, IN
1997 Toyota Tacoma 4x4
There are too many variables that could cause a rough idle. I'm aware of a bulletin on the 137-series engine (yours) that says that the engine, when under cylinder-shutoff conditions, could draw oil into the intake manifold and foul out the spark plugs, causing a misfire. But this would generally make your Check Engine light come on. I can't help you anymore with that problem, it's something I'd have to have the car in front of me to diagnose.
