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      08-02-2017, 03:48 PM   #1

Drives: E85 Z4 3.0
Join Date: Jul 2015
Location: NoVA

iTrader: (0)

Thunk sound in driver rear

Hey guys,

I installed some coilovers... and everything was perfect for about 3 weeks. After 3 weeks, I started hearing a thunk sound in the driver rear side, sounds like near the wheel well. It happens during normal driving, more prevalent with bumps. Whenever I lift the car, take a look, and lower it again, the sound goes away for maybe 5 miles before it comes back. I made sure all the nuts and bolts are tight, there is a gasket where the struts connect to car. Does anybody have any ideas what this may be?

It's hard to describe the exact sound, but maybe like a dull sound, almost like a dull larger metal piece is bouncing inside the frame (not really that, but sounds like that)