1997 C230 thump noise during dead stop 149K miles - Mercedes-Benz Forum
 
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#1 (permalink) Old 03-26-2012, 10:58 PM
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Post 1997 C230 thump noise during dead stop 149K miles

I hear a thump noise coming from the drive train area whenever I stop at a stop sign or signal light. It feels like I got rear ended. If I slowly and gradually come to stop all is ok except a very small thump.Other than that car runs great and no noise or any problem at any speed. As a wild guess I changed transmission fluid ( pan + Converter) and filter, replaced engine mounts but problem still persists. Could it be transmission mount, drive shaft flex plate cracked or transmission gone bad. I just don't want to keep on working and changing parts without knowing the root cause. I would appreciate your help if you know or have experienced such a problem.
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#2 (permalink) Old 03-28-2012, 05:42 PM
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Put car in neutral and roll to a stop. See if noise is transmission related.
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#3 (permalink) Old 04-09-2012, 10:18 PM
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I am having the same problem with the e55
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#4 (permalink) Old 04-12-2012, 09:43 AM
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I am having the same issue with my SLK320.

Check out this thread....No definative answer yet though:

http://www.benzworld.org/forums/r170...-stopping.html
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#5 (permalink) Old 04-12-2012, 10:52 AM
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Check the insulation above the back of the transmission. It starts to come loose and gives you a nice clunking sound when you come to a stop.

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#6 (permalink) Old 04-12-2012, 10:25 PM
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Insulation and/or front flex disc
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#7 (permalink) Old 04-20-2012, 01:54 PM
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thump when braking slowely

ok so i had the car on the lift and a buddy of mine in the drivers seat. i had him put the car in drive and accelerate and brake through different speeds everything looked tight and I could not notice anything until i asked him if he feels the thump when braking which he did. we repeated it again and i noticed that 1 of 7 times the rear passenger side caliber didn't grab until a few seconds later or once not at all for a while. im think that's what may be causing it. im going to do a gravity bleed when working on the car and let you guys know if anything changer.

The flex disc were fine, the drive axle had no play nor ripped boots
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