34 51 527 Removing and Installing/Replacing DSC Hydraulic Unit

34 51 527 - Removing and installing or replacing DSC hydraulic unit





Necessary preliminary tasks:
- Read and comply with General Information Service and Repair.
- Remove left suspension cross-brace 51 71 371 Removing and Installing/Replacing Tension Strut on Left or Right Spring Strut Dome
- Extract brake fluid

Note:
Extract brake fluid out of expansion tank. Use a suction bottle used exclusively for drawing off brake fluid.
Do not reuse drawn out brake fluid.

After completing work:
- Bleed braking system 34 00 050 Bleeding Brake System With DSC





Important!
Do not mix up brake lines.
If necessary, mark before removal.
Close off connection bores with plugs.





Disconnect plug connection (1).
Unfasten brake lines (2).

Installation:
Tightening torque 34 32 1AZ 34 32 Brake Lines.





Unclip holders (1) for water hoses.
Release screw (2).

Installation:
Tightening torque 34 51 6AZ 34 51 Slip Control System (DSC).
Remove rear hydraulic control unit from holder and remove towards top.

Important!
Brake lines must not be bent!





When replacing hydraulic unit:
Release screws (1) and convert holder (2).

Installation:
Tightening torque 34 51 5AZ 34 51 Slip Control System (DSC).

Modify DSC control unit 34 52 516 Removing and Installing/Replacing DSC Control Unit.





When replacing control unit:
- Carry out programming/coding Programming and Relearning
- Adjustment of steering angle sensor Adjustments
- Mix-up check of brake lines