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 34 00... 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.
For additional information see: "Fluid Capacities" tab for the selected vehicle.

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 WINDSHIELD PANEL COVER .
Refer to REMOVING TRAILING LINK AT SPRING BOLT .
Refer to REMOVING THE TRIM PANEL FOR PEDAL ASSEMBLY .

Disconnect plug connection (1).
Remove the cable clip (2).

Courtesy of BMW OF NORTH AMERICA, INC.
Disconnect plug connection (1).

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: TECHNICAL INFORMATION
Do not interchange brake lines. Mark the brake lines before disassembly (for example, VL/VR/HR/HL).
Do not bend brake lines.
Close off connecting bores with seal plugs.

(1) Unfasten brake lines.

Courtesy of BMW OF NORTH AMERICA, INC.
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.

Courtesy of BMW OF NORTH AMERICA, INC.
Push the special tool 2 409 646 in arrow direction and lever the brake pedal away from the brake booster.

Courtesy of BMW OF NORTH AMERICA, INC.
Loosen nuts (1).

Courtesy of BMW OF NORTH AMERICA, INC.
Remove hydraulic unit (1).

Courtesy of BMW OF NORTH AMERICA, INC.