M performance brake clunk- doesn't seem normal

BurtMacklin · 03-05-2021, 02:09 PM

Recently purchased an '14 f32 x drive and it's developed a rather annoying clunk that is audible from 0-20mph and when braking at low speeds. Initially presented as the steering clunk(fixed, no change), then i replaced a blown torsion arm (no change). I only just now realized when torquing the wheel that then I'm tightening it i can see the caliper moving slightly and clunking loudly. The other side does not do this, so I'm looking for insights on this. I checked the caliper mounting bolts and they're nice n tight. Here's a short clip of what I'm seeing/hearing.

Edit: words

Eschmacher · 03-05-2021, 04:53 PM

Take the wheel off and verify your caliper is bolted tight to the knuckle/wheel carrier. Then check if you have play in the rotor/hub. If you can move the rotor up/down or left/right at all, you have something seriously wrong with your hub/wheel bearing.

03-05-2021, 02:09 PM	#1
BurtMacklin Enlisted Member 12 Rep 32 Posts Drives: 2014 435i Xdrive Join Date: Jul 2015 Location: Oregon iTrader: (2)	M performance brake clunk- doesn't seem normal Recently purchased an '14 f32 x drive and it's developed a rather annoying clunk that is audible from 0-20mph and when braking at low speeds. Initially presented as the steering clunk(fixed, no change), then i replaced a blown torsion arm (no change). I only just now realized when torquing the wheel that then I'm tightening it i can see the caliper moving slightly and clunking loudly. The other side does not do this, so I'm looking for insights on this. I checked the caliper mounting bolts and they're nice n tight. Here's a short clip of what I'm seeing/hearing. Edit: words
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03-05-2021, 04:53 PM	#2
Eschmacher Car Hypochondriac 335 Rep 901 Posts Drives: 2014 335i M-Sport Estoril Blue Join Date: Feb 2017 Location: Sterling, VA iTrader: (0) Garage List 2014 BMW 335i [0.00]	Take the wheel off and verify your caliper is bolted tight to the knuckle/wheel carrier. Then check if you have play in the rotor/hub. If you can move the rotor up/down or left/right at all, you have something seriously wrong with your hub/wheel bearing.
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