BMW X5: Electrical Components
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 a brake lining sensor that has already been ground has to be replaced even though the minimum brake lining thickness has not yet been reached, you must observe the following: The new sliding contact must be filed down with a file to the same length as the ground sliding contact.
Necessary preliminary tasks:
- Remove wheel.
Disengage cable from cable guides (2).
Open cover (1) on plug housing.
Disconnect plug connection.
Disengage cable guides (3).
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Fig. 77: Identifying Cover And Cable Guide
Pull brake pad sensor (1) in direction of arrow out of brake pad.
Installation:
Make sure brake pad sensor (1) is correctly seated in brake pad.
Disengage cable of brake pad sensor from holders (2).
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Fig. 78: Identifying Brake Pad Sensor
REPLACING A BRAKE PAD SENSOR (REAR)
Necessary preliminary tasks:
- Partially detach rear wheel arch trim.
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 a brake lining sensor that has already been ground has to be replaced even though the minimum brake lining thickness has not yet been reached, you must observe the following: The new sliding contact must be filed down with a file to the same length as the ground sliding contact.
Open housing cover (1).
Disconnect plug connection (2).
Installation:
Ensure proper locking of the plug connector and proper seating of the cable in the brackets.
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Fig. 79: Identifying Plug Connection And Housing Cover
Disengage cable (1) along marked lines from holders.
Installation:
Ensure proper locking of the holders and proper seating of the cable in the holders.
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Fig. 80: Identifying Cable Route
Pull brake pad sensor (1) in direction of arrow out of brake pad.
Installation:
Make sure brake pad sensor (1) is correctly seated in brake pad.
Disengage cable of brake pad sensor from holders (2).
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Fig. 81: Identifying Brake Pad Sensor
READ NEXT:
General Information On Braking In New Brake Discs / Brake Pads
IMPORTANT: After completing work:
Carry out function check on brake analyzer (test stand) to ensure
that the
brakes complies with legal requirements.
Carry out test braking while driving at low
Adjusting Parking Brake
The parking brake test must be carried out on the roller dynamometer as
follows.
Release position (engine off / ignition on ):
Wheel circumferential force right / left < or = 300 N.
Press park
SEE MORE:
Raising Vehicle With Trolley Jack
IMPORTANT: Observe the following trolley-jack-related instructions:
1. Use only BMW-distributed/approved trolley jacks which have rubber
plate
contact points.
2. Trolley jacks must be regularly serviced and always checked for
functional reliability before they are used!
3. Check the rubber plate
Battery Vapor Separator
REPLACING BATTERY NEGATIVE LEAD
WARNING: Observe safety instructions for handling vehicle battery.
Follow instructions for disconnecting and connecting battery.
IMPORTANT: Do not under any circumstances use force to pull/lever off
Intelligent Battery
Sensor (IBS).
Necessary preliminary tasks:
