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equ 10-19-2017 02:59 PM

Rear? noise in e46 m3
I took it in for an oil change and while it's at the shop, complained about an occasional noise. It happens more often when cold, first started. If you make a slow turn near full steering lock, it seems to emanate from the inside turn rear. Like a rumble or a grind.. Not that loud or noticeable and goes away quickly. Candidates:
- diff low on fluid?
- something wrong on rear axles or bearings
- handbrake was tightened last year, maybe it's affecting? I notice when I pull it on a steep hill, the car seems to get diagonally loaded.
- something stupid like a stuck branch/gravel behind the brake dust cover...

We will see. I didn't have time to pull all wheels off and re-torque them to proper spec before taking it to the shop. Wish I'd done that.

Nick M3 10-19-2017 03:09 PM

Diff fluid. BMW has a special fluid for this.

bren 10-19-2017 03:20 PM


equ 10-19-2017 03:39 PM


Originally Posted by bren (Post 514402)

Maybe yeah, the stinky stuff. I did that four years/12k miles ago.

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