34 11 667 Precision-Turning Both Front Brake Discs On Both Sides
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. 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 and 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) . See BRAKES - TECHNICAL DATA .
Observe Max. machining dimension per friction ring side and 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) . See BRAKES - TECHNICAL DATA .
Stationary brake disc lathe:
In the case of stationary brake disc lathes, the brake disc must be removed .
Please refer to lathe manufacturer's instruction manual for the exact procedure.
IMPORTANT:
Only BMW-approved brake disc lathes
may be used!
Mobile brake disc lathe:
In the case of mobile brake disc lathes, only the brake calliper has must be removed.
The brake discs remain on the car.
Please refer to lathe manufacturer's instruction manual for the exact procedure.
IMPORTANT:
Only BMW-approved brake disc lathes
may be used!
After fine-grinding the brake discs, measure the thickness difference inside the braking surfaces at 8 points with an external micrometer.