Remove hydraulic unit
NOTE:
TECHNICAL INFORMATION
Before removing the hydraulic unit, the vehicle battery must be disconnected without fail!
The vehicle battery must never be connected during a repair!
Otherwise a brake bleeding procedure must be carried out after the repair.
For additional information see: BRAKE BLEEDING PROCEDURE .
The vehicle battery may only be reconnected when the brake system is completely filled with brake fluid and vented!
Before removing the hydraulic unit, the vehicle battery must be disconnected without fail!
The vehicle battery must never be connected during a repair!
Otherwise a brake bleeding procedure must be carried out after the repair.
For additional information see: BRAKE BLEEDING PROCEDURE .
The vehicle battery may only be reconnected when the brake system is completely filled with brake fluid and vented!
NOTE:
TECHNICAL INFORMATION
Use only BMW-approved brake fluids.
Use only BMW-approved brake fluids.
Preliminary work
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
- Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING THE TRIM PANEL FOR PEDAL MECHANISM .
- Disconnect plug connection (1).
- Remove the cable clip (2).
- Disconnect plug connection (1).
NOTE:
TECHNICAL INFORMATION
Do not interchange brake lines. Label the brake lines before disassembly.
Do not bend brake lines.
Close off connecting bores with seal plugs.
Do not interchange brake lines. Label the brake lines before disassembly.
Do not bend brake lines.
Close off connecting bores with seal plugs.
- (1) Unfasten brake lines.
- Retract release tool 2 409 646 between brake pedal and brake booster.
- Place support (1) of the special tool (release tool) 2 409 646 on the bearing bracket. If necessary, position the support (1) permanently by turning the screws on the special tool.
- Push the special tool 2 409 646 in arrow direction and lever the brake pedal away from the brake booster.
- Loosen nuts (1).
- Remove hydraulic unit (1).