34 51 527 Removing and installing/replacing hydraulic unit for DSC (S85)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW 650i, 2009 BMW M6, 2009 BMW 650i, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Read and comply with General Information .
- Remove front left wheel arch trim. See 51 71 040 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER .
- Remove front left support.
After completing work: Bleed braking system .
Installation: After reinstalling the hydraulic unit, carry out the following tasks with the DIS (Diagnosis and Information System):
- Mix-up check of brake lines
- Function check, hydraulic unit
Press clutch pedal down to floor and secure with pedal support.
NOTE:
The pedal support may only be released when the brake lines are reconnected.
This prevents brake fluid from emerging from the expansion tank and air from entering the system when the brake lines are opened.
IMPORTANT:
Do not mix up brake lines.
If necessary, mark before removal.
Close off connection bores with plugs.
Disconnect plug connection (1).
IMPORTANT:
Do not bend brake lines.
Unfasten brake lines (2). Installation: Tightening torque, see 34 32 1AZ in 34 32 BRAKE LINES . Release bolts (3) and remove hydraulic unit.
When replacing hydraulic unit:
- Release bolts (1) and modify bracket (2).
- Modify control unit.