Parking Assist Distance Sensor: Service and Repair

Removing And Installing Sensor For Park Assistent







NOTE: Four sensors for the ParkAssistent are installed in the rear spoiler. The rear spoiler must be taken off in order to remove a defective sensor. The sensors are arranged in the order: outer left, inner left, inner right and outer right.

The sensor with holder in the rear spoiler consists of six parts.







Removal







1. Take off rear spoiler Pull off electrical plug connection. Press together retaining spring at top and pull off.







2. Slightly bend up the holding peg on the sensor housing and push out the sensor.


3. The washer remains over the sensor housing on the rear spoiler. Remove isolating ring from the sensor.

Installation







NOTE: Always fit the isolating ring (Figure B) before installing the sensor (Figure A)- The smooth surface of the isolating ring faces the sensor.


1. Fit isolating ring and push sensor into the sensor housing.
2. Slide retaining spring over the sensor housing and press on until it meets the stop.
3. Engage electrical plug connections and install fit rear spoiler.

NOTE: The electrical plug connection in the vehicle must always point to the centre of the vehicle. Plug connection with marking (white adhesive tape) on the wiring harness always connected to outer left sensor.

Parking assistant wiring harness







NOTE: The wiring harness is marked at one outer end of the plug connection. Observe the allocation of the plug connections to the sensors. Outer plug connection with marking (white adhesive tape) on the wiring harness always connected to outer left sensor.







Pull off plug connection on the sensor.
Lift the lower lug with your finger and pull off the plug connection.

ParkAssistent control module







NOTE: The control module is fastened next to the alarm system/central locking system control module under the driver's seat. When removing, remove the seat and detach the retaining plate (two hexagon-head screws M6 x 16).