Electrical/Electronic Components

Electrical/Electronic components and locations





1 ABS and ABS/ASR hydraulic unit -N55
^ Located on left of engine compartment.
^ The hydraulic pump -V64- and the inlet/outlet valves in the hydraulic unit are checked by self-diagnosis
^ The hydraulic pump -V64- and valve block must not be separated from one another
^ When changing the hydraulic unit, always seal the old part with the plugs from the repair set Part No. IIHO 698 311 A
2 ABS control module -J104-
^ Location: on hydraulic unit on left of engine compartment
^ Checked by On Board Diagnostic (OBD)
^ Do not disconnect connector before successfully completing OBD. Switch ignition off before separating connection.
3 Brake light switch -F-
^ The brake light switch is open in the rest position;
^ Adjusting go to Lighting and Horns.
^ Can be checked via read measured value block.
4 Data Link Connector (DLC)
^ Installation position: Current model (DLC) location is left of steering column, under the instrument panel. Early production is at the center console below heating/air conditioning controls.
5 ESP control lamp -K155- (only for vehicles with ASR)
^ Location: In instrument cluster
Function: go to Malfunctions Displayed by Warning Lights. Malfunctions Displayed By Warning Lights
6 Warning light for brake system -K118-
^ Location: In instrument cluster
Function: go to Malfunctions Displayed by Warning Lights. Malfunctions Displayed By Warning Lights
7 ABS warning light -K47-
^ Location: In instrument cluster
Function: go to Malfunctions Displayed by Warning Lights. Malfunctions Displayed By Warning Lights
8 Front right/left ABS wheel speed sensor G45-/-G47-
^ Checked by On Board Diagnostic (OBD)
^ Before inserting the sensor clean the inner surface of the sensor mounting and coat with lubricating paste G 000 650
^ When connecting the speed sensor wire ensure it is not twisted in the wheel housing
^ Securing bolt tightening torque: 10 Nm
9 Wheel hub with rotor for speed sensors
^ Rotor and speed sensors for front left and right-hand sides are identical
^ Removing and installing
go to Steering and Suspension.
10 Rear right/left ABS wheel speed sensor G44-/-G46-
^ Checked by On Board Diagnostic (OBD)
^ Before inserting the sensor clean the inner surface of the sensor mounting and coat with lubricating paste G 000 650
^ When connecting the speed sensor wire ensure it is not twisted in the wheel housing
^ Securing bolt tightening torque: 10 Nm
11 Wheel hub with rotor for speed sensors
^ Rotor and speed sensors for rear left and right-hand sides are identical
^ Removing and installing go to Steering and Suspension.