[Clift]

I have an odd one.
My brake pedal vibrates when I brake, and sometimes the car pulls a bit.
I have checked the alignment, changed out the rotors and the brake pads.
It doesn't do it as much in the morning time (assuming when cold) but sometimes it does. I used to hear a "scraping" sound like the left front pads we're riding on the rotor or something like that. Any one have any ideas what could be causing this?

[rak299]

M Sport brakes or standard? If standard, when the pads were changed, did the caliper slide pins get greased?

[Clift]

M-sport. For this model year it's the same brakes as the 335i. I am pretty certain they didn't. The vribration is what prompted the brake job. That and the rotors weren't the smoothest.

[tpliquid]

Could be the wheels bent or tire need balance.

[Bryan_KiesMotorsports]

Originally Posted by Clift

I have an odd one.
My brake pedal vibrates when I brake, and sometimes the car pulls a bit.
I have checked the alignment, changed out the rotors and the brake pads.
It doesn't do it as much in the morning time (assuming when cold) but sometimes it does. I used to hear a "scraping" sound like the left front pads we're riding on the rotor or something like that. Any one have any ideas what could be causing this?

Rotors may be warped

[enjoythemusic]

Check the carrier / caliper bracket / bolts on the brake assembly. Replace bolts as needed, please do not just 're-tighten' the old bolts to tq spec (imho). New bolts.