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The driver's side differential bolt snapped on my 2011 E90 M3 (DCT) about a week ago, car has 29,000 miles.
This happened while full throttle on 2nd gear and letting off close to redline, while engine braking just after that there was a horrible grinding sound, i immediately stoped to see if i could notice anything wrong, i did not though.
Got the car home slowly (fortunately really close) and this grinding sound only came while engine braking.
I'm really scared because some people had to replace the differential or even the subframe.
Should i replace bushings and all the bolts even though only one broke?
Thanks.
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AlexVega
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