Component Location Overview - Abs/Esp

The overview shows a LHD vehicle as an example. For RHD vehicles the layout is a mirror image.

Fig 1: Exploded View Of ABS/ESP

Courtesy of AUDI OF AMERICA, LLC

1. Front Speed Sensor
   • Right Front ABS Wheel Speed Sensor -G45-
   • Left Front ABS Wheel Speed Sensor -G47-
   • Refer to OVERVIEW - FRONT AXLE SPEED SENSOR 
2. Hydraulic Control Unit
   • Installed location: in the front left engine compartment.
   • with
     • ABS Control Module -J104-
     • ABS Hydraulic Unit -N55-
   • The control module and the hydraulic unit can be separated
   • Refer to OVERVIEW - CONTROL MODULE AND HYDRAULIC UNIT 
3. Vacuum Sensor -G608-
   • Refer to OVERVIEW - VACUUM PUMP
4. 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 .
5. 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 .
6. Right Rear Brake Pad Wear Sensor -G37-
   • Only on the right side in the inner brake pad
   • Refer to OVERVIEW - REAR BRAKES
7. Rear Speed Sensor
   • Right Rear ABS Wheel Speed Sensor -G44-
   • Left Rear ABS Wheel Speed Sensor -G46-
   • Refer to OVERVIEW - REAR AXLE SPEED SENSOR 
8. 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 .
9. Brake Lamp Switch -F-
   • Component location: on the brake master cylinder
   • Refer to OVERVIEW - BRAKE BOOSTER/BRAKE MASTER CYLINDER
10. 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 Electronic Parts information .
    • In the respective inner brake pad
    • Refer to OVERVIEW - FRONT BRAKES