34 51 527 Removing and Installing/Replacing DSC Hydraulic Unit

34 51 527 Removing and installing/replacing DSC hydraulic unit





E72For:

Warning!
High-voltage system - danger to life!





E72For:

Warning!
Compliance with the following points is mandatory before beginning work:
^ Observe safety instructions for handling with hybrid vehicles





Necessary preliminary tasks:
^ Read and comply with General Information.

^ 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





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





Disconnect plug connection (1).

Unfasten brake lines (2).

Tightening torque 34 32 1AZ.

If necessary, release brake lines from holder on bulkhead.

Release screw (3).

Tightening torque 34 51 6AZ.

Pull hydraulic control unit with holder out of guide pins (4) and remove.





When replacing hydraulic unit:

Release screws (1) and convert holder (2).

Installation:
Tightening torque 34 51 5AZ.





When replacing hydraulic unit:
- Carry out programming/encoding
- Adjustment of steering angle sensor
- Brake line interchange check:
- Function check, hydraulic unit