ABS Mark 60, ABS, EDL, ASR and ESP, From 06.08
Electrical and Electronic Component Locations
1 Anti-lock Brake System (ABS) control module (w/Electronic Differential Lock (EDL) (J104)
• Component location: At hydraulic unit on right side of engine compartment.
• Do not disconnect connector before successfully completing On Board Diagnostic (OBD). Switch ignition off before separating connector.
The following components are integrated inside the control module:
• Transverse acceleration sensor
• Rotation rate sensor
• Longitudinal acceleration sensor, (on All Wheel Drive (AWD) vehicles and with hill assist).
• Removing and installing, refer to => [ Control Module and Hydraulic Unit ] Service and Repair.
2 ABS hydraulic unit (N55)
• Component location: in engine compartment, on right side.
The hydraulic unit consists of the following components:
• ABS hydraulic pump.
• Brake pressure sensor.
• Valve block (contains the in/outlet valves).
• The ABS hydraulic pump and valve block must not be separated from one another.
• Removing and installing, refer to => [ Control Module and Hydraulic Unit ] Service and Repair.
3 Brake pad wear indicator lamp (K32)
• Component location: In the instrument cluster.
• Function, refer to => [ Level Control System Indicator Lamps ] Level Control System Indicator Lamps.
4 ABS warning lamp (K47)
• Component location: In the instrument cluster.
• Function, refer to => [ Level Control System Indicator Lamps ] Level Control System Indicator Lamps.
5 Anti-Slip Regulation/Electronic Stabilization Program (ASR/ESP) control lamp (K155)
• Only on vehicles with ABS/EDL/ASR/ESP.
• Component location: In the instrument cluster.
• Function, refer to => [ Level Control System Indicator Lamps ] Level Control System Indicator Lamps.
6 Brake system warning lamp (K118)
• Component location: In the instrument cluster.
• Function, refer to => [ Level Control System Indicator Lamps ] Level Control System Indicator Lamps.
7 Brake light switch (F)
• Includes the brake pedal switch.
• Component location: On the brake master cylinder.
• Removing and installing, refer to => [ Brake Light Switch, from 11.06.05 ] Service and Repair.
8 ASR/ESP button (E256)
• Only on vehicles with ABS/EDL/ASR/ESP.
• Component location: in center console.
9 Diagnostic connection
• Component location: under the cover in the driver footwell.
10 Steering angle sensor (G85)
• From 06.08, the steering angle sensor is located inside the steering gear on vehicles equipped with generation 3 electromechanical steering.
• Location A: On the steering column between the steering wheel and the steering column switch.
• Removing and installing, refer to => [ Steering Angle Sensor ] Service and Repair.
• Location B: Inside the steering gear.
11 Right front wheel speed sensor (G45)/left front wheel speed sensor (G47)
• Removing and installing, refer to => [ ABS Component Assembly Overview, Front Axle ] ABS Component Assembly Overview, Front Axle.
12 Wheel bearing/hub unit
• The ABS sensor ring is installed in the wheel bearing.
13 Right rear wheel speed sensor (G44)/left rear wheel speed sensor (G46)
Front Wheel Drive (FWD) shown.
• Removing and installing, with FWD. Refer to => [ ABS Component Assembly Overview, Rear Axle, FWD ] .
• Removing and installing, with All Wheel Drive (AWD). Refer to => [ ABS Component Assembly Overview, Rear Axle, AWD ] ABS Component Assembly Overview, Rear Axle, AWD.
14 Wheel bearing/hub unit
FWD shown.
• The ABS sensor ring is installed in the wheel bearing.