Audi Q5: Antilock Brake System
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ABS Repair Instructions
ABS malfunctions do not affect the brake system and the
booster. Conventional brake system stays operative even without
ABS. A change in braking behavior should be checked. W
Overview - Control Module and Hydraulic Unit
1 - ABS Hydraulic Unit -N55- with ABS Control Module -J104-
Installed location: in the front left engine compartment.
Refer to
→ Chap
Overview - Front Axle Speed Sensor
1 - Speed Sensor
Right Front ABS Wheel Speed Sensor -G45-/Left Front ABS Wheel Speed
Sensor -G47-
Refer to → Chapter "Right/Left Front ABS Whee
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Component Location Overview - Airbag Crash Sensors
1 - Passenger Side Front Airbag Crash Sensor -G284-
Installation location: on the headlamp housing bracket
Removing and installing. Refer to
→ Chapter "Driver Front Airbag Crash Sensor -G283-, Removing and
Installing".
2 
Axle Alignment Information
Wheel alignment must only performed using VW/Audi-approved
wheel alignment equipment.
Each time wheels are aligned, both front and rear wheels
must be aligned.
Otherwise, proper vehicle driveability cannot be ensured.
Note
Axle alignment should not be performed