34 21 320 Removing and installing or replacing both rear brake discs
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 34 1 280
See BRAKES - SPECIAL TOOLS .
Necessary preliminary tasks:
- Remove wheels
- Remove and clean brake pads
After completing work:
- Adjusting parking brake
- Read and comply with notes on braking in new brake discs/brake pads
Check minimum brake disc thickness:
- Position special tool 34 1 280 at three measuring points in area (1) and measure.
- Compare measurement result and lowest value with setpoint value . See BRAKES - TECHNICAL DATA .
NOTE:
If the brake discs are replaced, you must also fit new brake pads.
Always replace brake discs in pairs.
Always replace brake discs in pairs.
IMPORTANT:
New brake pads may only be installed if the brake disc thickness is greater than or equal to the minimum brake disc thickness
(MIN TH) (not incl. M vehicles).
In the case of M vehicles and perforated brake discs, new brake pads may only be installed if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH).
See BRAKES - TECHNICAL DATA .
In the case of M vehicles and perforated brake discs, new brake pads may only be installed if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH).
See BRAKES - TECHNICAL DATA .
Release screws (1). Detach brake caliper mounting bracket.
Installation:
Tightening torque 34 21 2AZ . See 34 21 REAR BRAKE .
IMPORTANT:
To release brake disc: Do not under any circumstances strike friction ring with a hammer or similar!
If necessary, carefully tap on base of brake disc chamber with a rubber mallet.
Clean contact surface of brake disc at wheel hub thoroughly and remove traces of corrosion.
Unevenness on contact surface may result in distortion of brake disc!
If necessary, carefully tap on base of brake disc chamber with a rubber mallet.
Clean contact surface of brake disc at wheel hub thoroughly and remove traces of corrosion.
Unevenness on contact surface may result in distortion of brake disc!
Release screw (1) and remove brake disc (2).
Installation:
Replace screw.
Tightening torque 34 21 1AZ . See 34 21 REAR BRAKE .