Front Parking Aid Sensors

Front Parking Aid Sensors

• The following illustrations show removing and installing the left front parking aid sensor.

• Removal and installing the other parking aid sensors is identical.

• It is possible to remove both outer left front parking aid sensors (G255) and the front right parking aid sensor (G252) through the opening for the fog lamp. Depending on the vehicle equipment level, either remove the bumper cover or remove the fog lamp. Refer to => [ Fog Lamps ] Fog Lamps.


• Turn off the ignition and all electrical consumers.

• Remove the key.

Removal

- Remove the front bumper cover.


• Always follow the sequence for removing the sensor.

• Otherwise, the sensor may be damaged. Hairline cracks which lead to sensor failure can develop if too much force is used on the sensor.

• First remove the sensor from the bracket and then disconnect the sensor connectors.

- Push the locking mechanisms - arrows - on the sensor mount - 1 - toward the outside.






- Pull the sensor - 2 - backward out of the sensor bracket with the wires connected.

• When removing the sensor, make sure that the coupling ring (black silicone ring) remains on the sensor head and not in the holder or that it gets lost.

• Do not bend the coupling ring.

- Disconnect the connector - 2 - from the sensor - 1 -.






Installation

Installation is performed in the reverse order of removal. Note the following:


• Do not bend the coupling ring.

• An incorrect or damaged coupling ring can lead to malfunctions.

• Replace damaged coupling rings and ensure the correct ring is installed.

• Since the lengths of the sensor heads of the front parking aid are different, the high coupling rings installed are also different.

- Make sure the correct decoupling ring is installed on the sensor head.











- Replace the sensor decoupling ring - 1 -.

- Install the sensor in the correct location in the bumper cover.

• Sensor brackets are designed in different shapes and must be matched to the respective component location in the bumper cover.

• Pay attention to the connectors when installing the sensors.

Parking aid sensors allocation inside the front bumper cover






A left outer
B left center
C right center
D right outer

Sensor retainer allocation in inner side of front bumper cover from MY 11






A left center (in radiator protective grille)
B right center (in radiator protective grille)
C right outer
D left outer

• When installing the sensor, make sure the coupling ring is correctly mounted on the sensor head and that it does not fall off or become jammed when inserting into the sensor holder.

• Both retaining clips on the sensor holder must engage audibly when installing sensor.

- Make sure the sensor is seated correctly in the bracket after installing. Dimension - a - for the circular gap between the sensor head and bumper cover must be even all around on the outer side of the bumper cover.