Thread: Loud clunk from rear when going from reverse to drive?
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Old 04-03-2004, 05:14 PM
suginami suginami is offline
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Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,538
The differential bushings are a likely prospect, but so is the flex disc (front). I also wouldn't rule out a cracked motor mount.

To test for a bad motor mount, you can put the car in reverse, and with your foot firmly on the brake pedal, gently rev the engine and have someone look at your engine. If it jumps up slightly, then it's your motor mount.

Repeat the procedure by putting the car in Drive. If it jumps, then it's the other motor mount.
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2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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