Operation CHARM: Car repair manuals for everyone.

Anti-lock Brake System with EDL/ASR/ESP







Anti-lock Brake System

Anti-lock Brake System with EDL/ASR/ESP







1 - ABS control unit -J104-
ABS control unit integrated with
Located at hydraulic unit on right side of engine compartment.

2 - ABS hydraulic unit -N55-
Located in engine compartment, on right side.
The hydraulic unit consists of the following components:
ABS Hydraulic Pump -V64-
Brake Pressure Sensor 1 -G201-
Valve block (contains the in/outlet valves).

3 - Brake pad warning lamp -K32-
Located in the instrument cluster

4 - ABS warning lamp -K47-
Located in the instrument cluster

5 - ESP and TCS warning lamp -K155-
Located in the instrument cluster

6 - Brake system warning lamp -K118-
Located in the instrument cluster

7 - Brake light switch -F- through 11.05.05
Includes the Brake Pedal Switch -F47-
Located on the brake pedal
Brake light switch -F- location from 11.06.05

8 - Brake light switch -F- from 11.06.05
Includes the Brake Pedal Switch -F47-
Located on the brake master cylinder

Anti-lock Brake System with EDL/ASR/ESP continued





9 - TCS and ESP button -E256-
Located in center console

10 - ESP sensor unit -G419- => [ ESP Sensor Unit ] See Image Below.
Integrated with Transverse Acceleration Sensor -G200- , Rotation Rate Sensor -G202- and Longitudinal Acceleration Sensor -G251-
Only on vehicles with ABS/EDL/ASR/ESP
Located under the right front seat

11 - Diagnostic Connection
Located under the cover in the driver footwell

12 - Steering angle sender -G85- => [ Steering Angle Sensor ] See Image Below.
Located on steering column between steering wheel and steering column switch

13 - Front right speed sensor -G45- and Front left speed sensor -G47- => [ Front Wheel Speed Sensor ] See Image Below.

14 - Wheel bearing housing

15 - Wheel Bearing and hub unit
The ABS sensor ring is installed in the wheel bearing

16 - Rear right speed sensor -G44- and Rear left speed sensor -G46- => [ Rear Wheel Speed Sensor - FWD ] See Image Below.

17 - Wheel bearing housing

18 - Wheel bearing and hub unit
The ABS sensor ring is installed in the wheel bearing


ESP Sensor Unit






1 - ESP sensor unit -G419- The transverse acceleration sensor, rotation rate sensor and longitudinal acceleration sensor are installed in a housing under the right front seat
Transverse Acceleration Sensor -G200-

Rotation Rate Sensor -G202-

Longitudinal Acceleration Sensor -G251-


Steering Angle Sensor






1 - Steering Angle Sensor -G85-

Front Wheel Speed Sensor






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

Rear Wheel Speed Sensor - FWD






1 - Right Rear ABS Wheel Speed Sensor -G44- or Left Rear ABS Wheel Speed Sensor -G46-
- Rear Wheel Speed Sensor - AWD location => [ Rear Wheel Speed Sensor - AWD ] See Image Below.

Rear Wheel Speed Sensor - AWD






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