Mobile brake disc lathe

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Only Pro-Cut PFM 9.0 brake lathe may be used!

In the case of mobile brake disc lathes, the brake caliper See 3411520 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT BRAKE CALIPER (BREMBO) or 3411020 REMOVING AND INSTALLING OR REPLACING FRONT LEFT OR RIGHT BRAKE CALIPER (TEVES) and the brake anchor plate must be removed.

The brake discs remain on the car.

Please refer to the lathe manufacturer's instruction manual for the exact procedure.

Fig 1: Identifying Mobile Brake Disc Lathe

Courtesy of BMW OF NORTH AMERICA, INC.

After fine-grinding the brake discs, measure the THICKNESS DIFFERENCE inside the braking surfaces at 8 points with an external micrometer.

Fig 2: Measuring Brake Surface Thickness Using Micrometer Gauge

Courtesy of BMW OF NORTH AMERICA, INC.