BMW X3 Service & Repair Manual: Precision-turning both front brake discs on both sides
IMPORTANT: Always precision-turn both sides of both brake discs on one axle.
Maximum machining dimension per friction ring side is 0.8 mm! Observe 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).
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 calipers and brake anchor plates must be removed.
The brake discs remain on the vehicle.
After fine-grinding the brake discs, measure the thickness difference inside the braking surfaces at 8 points with an caliper gauge.
Front brakes
OVERVIEW OF FRONT BRAKES
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Removing and installing/renewing brake pads on both front disc brakes
Special tools required:
34 1 050
34 1 280
IMPORTANT:
Brake pad wear sensor: after removal it must be replaced (brake pad wear se ...
Other materials:
BMW X3 Service & Repair Manual > Rear brakes: Removing and installing or replacing rear left or right brake caliper (trw)
Necessary preliminary tasks:
Remove WHEEL .
Read and comply with GENERAL INFORMATION.
Switch off ignition.
After completing repair work: BLEED BRAKE SYSTEM.
Press brake pedal down to floor and secure with pedal support.
NOTE:
The pedal support may only be released when the brake ...
BMW X3 Owners Manual
BMW X3 Service & Repair Manual
