Quote:
Originally Posted by mook1178
Just my 2 cents.
I have a 2011 335i. The rear differential started to make a loud nose. My Indy shop said I may need a new, but wanted to change the fluid in the differential first. After the fluid change, the nose was highly reduced and disappeared altogether about 1500 miles later.
So I would change the differential fluid before anything else.
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The diff is making a clapping noise now, like helicopter sound