34 51 527 Removing and installing/replacing DSC hydraulic unit
Necessary preliminary work:
- Read and comply with GENERAL INFORMATION.
- Remove the SOUND INSULATION BULKHEAD upper part, center.
- Draw off brake fluid.
Only with F80, F82:
- Remove tension strut on spring strut dome.
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.
Do not reuse drawn out brake fluid.
After completing repair work:
- Bleed the BRAKING SYSTEM
- Brake line mix-up test:
IMPORTANT:
Do not mix up brake lines.
If necessary, mark before removal.
Close off connecting bores with seal plugs.
If necessary, mark before removal.
Close off connecting bores with seal plugs.
IMPORTANT:
Remove and/or loosen the following holders for better movement of brake lines!
Remove holder for brake lines (1).
Detach the brake lines (2) from the rubber grommet.
Detach brake line (1) from holder.
Disconnect plug connection (2).
Unfasten brake lines (3).
Installation note:
Tightening torque, refer to: 34 32 1AZ.
Release screw (4) and feed out hydro aggregate in upward direction.
IMPORTANT:
Brake lines must not be bent!
Installation note:
Tightening torque, refer to: 34 51 5AZ .
When replacing hydraulic unit:
Release screws (1) and convert holder (2).
Installation note:
Tightening torque, refer to: 34 51 4AZ .
Modify the DSC CONTROL UNIT .
When replacing control unit:
- Carry out programming/encoding
- Adjustment of steering angle sensor