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  #1  
Old 11-07-2003, 01:48 PM
Botnst's Avatar
What knockers!
 
Join Date: Jun 2003
Location: There castle.
Posts: 25,435
Slight noise on acceleration: w124

Car is an '88 300E, 135K miles. Just had the fluid, filter and some seals, and both flexible lines replaced in the auto transmission and also the rear main seal (long as I'm in the neighborhood).

I've just noticed a very slight clicking sound when gently accelerating from a dead stop. It reminds me a bit of the noise a U-joint makes, but much less harsh and I don't feel it transmitted through the car. The last time I had a U joint go out was 20 years ago on my '64 F100, so I don't know what a M-B should sound or feel like.

The click is crisp, but sounds sort of two-stepped. The same noise occurs if I immediately release the gas peddle. It sounds like its coming from just aft of the transmission, but that's not at all certain. I cannot hear the noise inless the driver's window is down (the weather's been great down here), so it may have been present for quite some time before the ambient temp finally moderated.

Any ideas?
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  #2  
Old 11-07-2003, 04:12 PM
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Join Date: May 2002
Location: Mass
Posts: 1,127
Sounds like the rubber driveshaft coupler or "flex disk". Common problem. Seems as though the front one always fails first.

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1986 300E 5-Speed 240k mi.
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  #3  
Old 11-07-2003, 05:59 PM
Botnst's Avatar
What knockers!
 
Join Date: Jun 2003
Location: There castle.
Posts: 25,435
Quote:
Originally posted by csnow
Sounds like the rubber driveshaft coupler or "flex disk". Common problem. Seems as though the front one always fails first.

Thanks for the tip. I did a search and found an avalanche of information.

This forum is great!

Botnst
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