34 11 667 Precision-turning both front brake discs on both sides
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Always precision-turn both sides of both brake discs on one axle.
Observe Max. machining dimension per friction ring side
Minimum brake disc thickness (MIN TH)
Brake discs of M models (Compound brake discs) must not be machined!
Only one brake pad set may be used up on brake discs which have been lathe-turned to minimum thickness (MIN TH).
Observe Max. machining dimension per friction ring side
Minimum brake disc thickness (MIN TH)
Brake discs of M models (Compound brake discs) must not be machined!
Only one brake pad set may be used up on brake discs which have been lathe-turned to minimum thickness (MIN TH).
For maximum machining dimension per friction ring side and minimum brake disc thickness, see BRAKES - TECHNICAL DATA .
Stationary brake disc lathe:
IMPORTANT:
Only BMW-approved brake disc lathes
may be used!
In the case of stationary brake disc lathes, the brake disc must be removed.
Mobile brake disc lathe:
IMPORTANT:
Only BMW-approved brake disc lathes
may be used!
In the case of mobile brake disc lathes, the brake caliper and the brake anchor plate must be removed.
The brake discs remain on the car.
After fine-grinding the brake discs, measure the thickness difference inside the braking surfaces at 8 points with an external micrometer.