BMW 7 Series: Electrical Components Wear Indicator
REPLACING A BRAKE PAD SENSOR (FRONT)
IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).
If an already ground brake pad wear sensor has to be replaced although the minimum brake pad thickness has not yet been reached, it is necessary to file down the new sliding contact with a file to the same length as the ground sliding contact.
Necessary preliminary tasks
- Remove front left WHEEL
Open housing cover.
Disconnect plug connection (1).
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Fig. 112: Identifying Plug Connection
Unclip line (1) along line.
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Fig. 113: Identifying Unclip Line
Disengage line from brake pad wear sensor from holder (1).
Pull brake pad wear sensor (2) in direction of arrow out of brake pad.
Installation:
Make sure brake pad wear sensor (2) is correctly seated in brake pad and holder (1).
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Fig. 114: Identifying Brake Pad Wear Sensor And Holder
REPLACING A BRAKE PAD SENSOR (REAR)
IMPORTANT: The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor loses its retention capability in the brake pad).
If an already ground brake pad wear sensor has to be replaced although the minimum brake pad thickness has not yet been reached, it is necessary to file down the new sliding contact with a file to the same length as the ground sliding contact.
Necessary preliminary tasks
- Remove rear right WHEEL
Open housing cover.
Disconnect plug connection (1).
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Fig. 115: Identifying Plug Connection
Unclip line (1) along line.
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Fig. 116: Identifying Unclip Line
Disengage line from brake pad wear sensor from holder (1).
Pull brake pad wear sensor (2) in direction of arrow out of brake pad.
Installation:
Make sure brake pad wear sensor (2) is correctly seated in brake pad and holder (1).
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Fig. 117: Identifying Brake Pad Wear Sensor And Holder
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Parking Brake
ADJUSTING PARKING BRAKE
The parking brake test must be carried out on the dynamic brake analyzer as
follows.
Release position:
Wheel circumferential force right/left < or = 300 N.
Press parkin
Removing And Installing Actuator Unit With Control Unit For
Parking Brake (EMF)
Necessary preliminary work
Remove BOTH REAR WHEELS.
IMPORTANT: The following work must only be carried of ISID diagnosis
system with
software version 02.21 or later.
Delete fault memory.
Check fu
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.
Installati
SEE MORE:
Butt Connector For Repairing A Plug Connection
Notes
IMPORTANT:
Identify cause of damage (e.g. sharp-edged body parts, faulty
electrical
loads, jammed mechanisms, corrosion caused by ingress of water, etc.).
Read out fault memory
Eliminate cause of damage.
Disconnect battery negative terminal
Make sure that no safety-related system acco
Check Actuator
Necessary preliminary tasks
REMOVE ACTUATOR
Check actuator for damage.
ACTUATOR CHART
Fig. 411: Checking Actuator
CHECK HINGE FOR ENGINE COMPARTMENT LID
Necessary preliminary tasks
REMOVE HINGE FOR ENGINE COMPARTMENT LID
Open and close hinge (1).
Place hinge (1) on a level surface. Check ho
