This bulletin applies to BMW vehicles equipped with wheel bolt patterns of 5x120 and 5x112. If a ticking noise is heard coming from a front wheel while cornering without the brakes applied at low speed, it’s likely that microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs. Remove both front brake discs and install a friction ring between the brake disc and the wheel bearing flange.
Install a friction ring between the brake disc hat and wheel bearing flange.
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
