BMW 7 Series: Removing And Installing/Renewing All Parking Brake Shoes
Installation
- Remove rear brake discs
- Release electromechanical parking brake (EMF)
After completing tasks, adjust PARKING BRAKE.
Disconnect return springs (1) with brake spring pliers.
Installation: Return springs (1) must not be over-elongated.
Check return springs (1) and replace if necessary.
Return springs (1) must not be mixed up.
Pay attention to installation position of adjusting screw (2).
Apply a thin coat of grease to bush and screw threads,
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Fig. 136: Identifying Return Springs And Adjusting Screw
NOTE: Illustration does not show wheel hub.
Twist roll pins (1) 90º with special tool 34 4 000 and detach.
Remove brake pads (2).
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Fig. 137: Identifying Roll Pins And Brake Pads
REMOVING AND INSTALLING/REPLACING EXPANDER FOR PARKING BRAKE SHOES
Necessary preliminary tasks
- Remove PARKING BRAKE SHOES
After completing tasks, adjust PARKING BRAKE.
Pull brake shoe expander (1) forward, disconnect parking brake Bowden cable (2) and remove brake shoe expander.
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Fig. 138: Identifying Brake Shoe Expander And Parking Brake Bowden Cable
REPLACING BOTH BOWDEN CABLES FOR PARKING BRAKE
IMPORTANT: Read and comply with GENERAL INFORMATION.
Bowden cables may only be replaced in pairs.
Necessary preliminary tasks
- Remove ACTUATOR UNIT with control unit for parking brake
Bowden cable, left
Release union nut (1).
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Fig. 139: Identifying Union Nut
Installation
Tightening torque 34 41 5AZ.
Pull Bowden cable (1) out of actuator unit (2).
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Fig. 140: Identifying Bowden Cable And Actuator Unit
IMPORTANT: Make sure all parts are absolutely clean.
Turn spindle (1) out of actuator unit (2) and remove Bowden cable.
Installation: Lubricate new spindle with grease provided.
Insert spindle (1) 3 turns into inner spline shaft of actuator unit (2).
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Fig. 141: Identifying Spindle And Actuator Unit
Bowden cable, right
Release union nut (1).
Installation: Tightening torque 34 41 5AZ.
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Fig. 142: Identifying Union Nut
Pull Bowden cable (1) out of actuator unit (2).
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Fig. 143: Identifying Bowden Cable And Actuator Unit
Unlock locking sleeve (1) and pull out of housing a little.
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Fig. 144: Identifying Locking Sleeve
Snap out coupling (1) in direction of arrow.
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Fig. 145: Identifying Snap Out Coupling
After installation
- Carry out initial operation/function test in BMW diagnosis system.
- Path
- Function selection
- Service functions
- Chassis
- Parking brake
- Initial operation/function test
- Path
READ NEXT:
Mechanical/Hydraulic Components
REMOVING AND INSTALLING/REPLACING DSC HYDRAULIC UNIT
Necessary preliminary work
Read and comply with GENERAL INFORMATION.
Remove front left rear WHEEL ARCH PANEL
Remove left UNDERBODY PANELLING
A
Electronic Components
OVERVIEW OF ELECTRONIC COMPONENTS
Fig. 153: Overview Of Electronic Components
Pulse generator
Brake pad wear sensor
ICM control unit
DSC control unit
REMOVING AND INSTALLING/RENEWING ICM CONT
Replacing A Rear Pulse Sensor
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DAMAGE (ESD protection).
Necessary preliminary tasks
Remove rear WHEEL
Read and comply with GENERAL INFORMATION.
Open hous
SEE MORE:
Safety Information For Working On Vehicles With Automatic Engine
Start-Stop Function (MSA)
WARNING: If the engine hood/bonnet contact is pulled upwards (workshop
mode), the information "switch closed" is output. The automatic engine
start-stop function is active.
An automatic engine start is possible.
Observe safety precautions when working on MSA vehicles
Before carrying out practical
Removing And Installing/Replacing Exhaust Turbocharger, Right,
Cylinders 1-4 (N63)
Notes
IMPORTANT: Risk of fire if oil lines are leaking.
Risk of mixing up vacuum hoses.
Necessary preliminary work
Remove CATALYTIC CONVERTER , cylinders 1-4
Disconnect plug connection (1) on electric changeover valve (2).
Fig. 496: Identifying Plug Connection On Electric Changeover Valve
Relea
