Overview - Abs/Esp

Fig 1: Exploded View Of ABS/ESP

Courtesy of AUDI OF AMERICA, LLC

Front Speed Sensor
- Right Front ABS Wheel Speed Sensor -G45-
- Left Front ABS Wheel Speed Sensor -G47-
- Refer to OVERVIEW - FRONT AXLE SPEED SENSOR
Hydraulic Control Unit
- Installed location: in the front left engine compartment.
- With
  - ABS Control Module -J104-
  - ABS Hydraulic Unit -N55-
- Installed location: in the front left engine compartment.
- The control module and the hydraulic unit can be separated
- Refer to OVERVIEW - CONTROL MODULE AND HYDRAULIC UNIT
Vacuum Sensor -G608-
- Refer to OVERVIEW - VACUUM PUMP
Switch Module in Instrument Panel, Center -EX22-
- With
  - ASR/ESP Button -E256-
  - Hill Descent Control Button -E618- (equipped on some models)
- Removing and Installing. Refer to COMPONENT LOCATION OVERVIEW - CONTROLS IN CENTER CONSOLE .
Electromechanical Parking Brake Button -E538-
- With
  - Electromechanical Parking Brake Button -E538-
  - -Auto Hold- Button -E540-
  - Electromechanical Parking Brake Indicator Lamp -K213-
  - -Auto Hold- Indicator Lamp -K237-
  - Push Button Illumination Bulb -L76-
- Removing and installing. Refer to Electromechanical Parking Brake Button -E538- /-AUTO HOLD- Button -E540-, REMOVING AND INSTALLING .
Right Rear Brake Pad Wear Sensor -G37-
- Only on the right side in the inner brake pad
- Refer to OVERVIEW - REAR BRAKES
Rear Speed Sensor
- Right Rear ABS Wheel Speed Sensor -G44-
- Left Rear ABS Wheel Speed Sensor -G46-
- Refer to OVERVIEW - REAR AXLE SPEED SENSOR
Instrument Cluster with Instrument Cluster Control Module -J285-
- The indicator lamps cannot be replaced separately
- Replace the instrument cluster if faulty. Refer to OVERVIEW - INSTRUMENT CLUSTER .
Brake Lamp Switch -F-
- Component location: on the brake master cylinder
- Refer to OVERVIEW - BRAKE BOOSTER/BRAKE MASTER CYLINDER
Front Brake Pad Wear Sensor
- Left Front Brake Pad Wear Sensor -G34-
- Right Front Brake Pad Wear Sensor -G35- ; not on all models. For the correct allocation. Refer to the Parts Information.
- In the respective inner brake pad
- Refer to OVERVIEW - FRONT BRAKES