Anti-lock Brake System (ABS) W/ ESP

Anti-lock Brake System (ABS) W/ ESP Overview

Anti-lock Brake System (ABS) W/ ESP







1 ABS control module (w/EDL) -J104-
2 ABS hydraulic unit -N55-
• Component location: in engine compartment, right
The hydraulic unit consists of the components:
• Brake pressure sensor -G201-
• ABS hydraulic pump -V64-
3 Brake pad wear indicator lamp -K32-
• Component location: In the instrument cluster
4 ABS warning lamp -K47-
• Component location: In the instrument cluster
5 ASR/ESP control lamp -K155-
• Component location: In the instrument cluster
6 Brake system warning lamp -K118-
• Component location: In the instrument cluster
7 Brake light switch -F- => [ Brake Light Switch ] Anti-lock Brake System (ABS) W/ ESP
• on brake master cylinder
8 ASR/ESP button -E256-
• Component location: in center console
9 ESP sensor unit -G419- and electromechanical parking brake control module -J540-
• Located Beneath the center console => [ ESP sensor unit ] Anti-lock Brake System (ABS) W/ ESP
• Combined transverse acceleration sensor -G200-, rotation rate sensor -G202- and longitudinal acceleration sensor -G251-
• Installed together in one housing with the electromechanical parking brake control module -J540-
Anti-lock Brake System (ABS) W/ ESP continued





10 - Diagnostic connection
• Component location: cover in driver footwell

11 - Steering angle sensor -G85-
• Component location: On steering column between steering wheel and steering column switch => [ Steering Angle Sensor ] Anti-lock Brake System (ABS) W/ ESP

12 - Wheel bearing housing

13 - Right front ABS wheel speed sensor -G45- => [ ABS Wheel Speed Sensor Overview - Front Axle ] Anti-lock Brake System (ABS) W/ ESP
• G47 Left Front ABS Wheel Speed Sensor

14 - Wheel bearing/hub unit

15 - Right rear ABS wheel speed sensor -G44- => [ ABS Wheel Speed Sensor Overview - Rear Axle ] Anti-lock Brake System (ABS) W/ ESP
• G46 Left Rear ABS Wheel Speed Sensor

16 - Wheel bearing housing

17 - Wheel bearing/hub unit



ESP sensor unit







- - ESP Sensor Unit -G419- and Electro-Mechanical Parking Brake Control Module -J540-
The transverse acceleration sensor -G200- , the rotation rate sensor -G202- , and the longitudinal acceleration sensor -G251- are installed
in one housing, together with the electromechanical parking brake control module -J540- under the center console.


Steering Angle Sensor







1 - Steering angle sensor -G85- is installed between steering wheel and steering column switch.


Brake Light Switch







3 - Brake Light Switch -F-


ABS Wheel Speed Sensor Overview - Front Axle







1 - Right Front ABS Wheel Speed Sensor -G45- or Left Front ABS Wheel Speed Sensor -G47-



ABS Wheel Speed Sensor Overview - Rear Axle







1 - Right Rear ABS Wheel Speed Sensor -G44- or Left Rear ABS Wheel Speed Sensor -G46-