FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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34 51 527 Removing and Installing/Replacing DSC Hydraulic Unit

34 51 527 Removing and installing/replacing DSC hydraulic unit





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

After completing repair work:
^ Bleed brake system





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





Press brake pedal down to floor and secure with pedal support.

Note:
The brake pedal may only be released when the brake lines are reconnected. This prevents brake fluid from emerging from the expansion tank when the brake lines are opened.





Disconnect plug connection (1).

Unfasten brake lines (1).

Installation note:
Tightening torque 34 32 1AZ.

Undo bolt (3) and remove hydraulic unit by pulling upward in direction of arrow

Installation note:
Tightening torque 34 51 4AZ.





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

Installation note:
Tightening torque 34 51 4AZ.





When replacing control unit:
- Carry out programming/encoding