|03-26-2012, 11:58 PM||#1 (permalink)|
BenzWorld Junior Member
Date registered: Dec 2006
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.
|04-12-2012, 10:43 AM||#4 (permalink)|
Date registered: Jul 2009
Vehicle: 2001 SLK320, 2000 GMC Sonoma, 1996 firebird, 1984 Camaro, 1978 MGB
Location: Mississauga Ontario
I am having the same issue with my SLK320.
Check out this thread....No definative answer yet though:
|04-12-2012, 11:52 AM||#5 (permalink)|
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.
|04-20-2012, 02:54 PM||#7 (permalink)|
Date registered: Apr 2012
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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