Quote:
Originally Posted by M3Post
I have a modulating whirring sound coming from the differential rear end area at about 20mph, regardless of gear. Could this sound be from a wheel bearing, or the differential nose bearing, or perhaps a driveshaft bearing? Sound clip link below.
The recording was made with the rear seats down. Listen for the modulating wah-wah type sound. The car makes the noise when coasting in neutral, or at steady state speed of 20mph.
I do have 12mm spacers, so I am wondering if perhaps the whirring sound is a driveshaft bearing? Who knows? Opinions please. The sound clip can be heard best on mobile phone speakers or with computer speakers, but not with ear buds which seem to boost the bass too much. Take a listen.
https://soundcloud.com/user-90547482/diff-whirring |
Yeah . With my previous BMW I had a similar noise coming from the rear end of the car .
The outcome was a worn wheel bearing .