51 12 156 Removing and installing (replacing) rear bumper panel

Attention!

To guarantee system function on vehicles with LANE CHANGE WARNING SENSOR :

there must be no mechanical damage (e.g. dents) and no body repair work with filler or painting (several coats) must be carried out in a 10 cm radius about the left or right sensor on the bumper panel
no stickers must be attached in the area of the sensor

Comply with additional instructions as per paintwork manual.

Release screws (1) on wheel arch cover (2) on left/right.

Fig 1: Identifying Wheel Arch Cover And Screws

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Fold back wheel arch cover (1).

Release screw (2).

Tightening torque 51 12 4AZ .

Fig 2: Identifying Wheel Arch Cover And Screw

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Release screws (1).

Tightening torque 51 12 6AZ .

Fig 3: Identifying Screws

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Feed out cover (1) upwards out of guides (2).

Release screw below it.

Tightening torque 51 12 5AZ .

Installation note:

Sealing lip of cover (1) must not lie below edge protection for tailgate.

Sealing lip of cover (1) must rest correctly on edge protection for tailgate.

NOTE: Carry out work on the right side in the same way as for the left side illustrated here.

Fig 4: Pulling Cover Out Of Guides

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NOTE: The following tasks must be carried out with a second person assisting:

Unclip the bumper panel (1) in the area (2) left/right outward.

Unclip bumper panel (1) in area (3) toward the rear.

If necessary, disconnect plug connections of ultrasonic sensor and remove bumper panel (1).

Installation note:

Fig 5: Removing Bumper Panel

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Clean plug connection on wiring harness and ultrasonic sensor!

Latch mechanisms in this area (2 and 3) must be routed correctly into the corresponding holders.

Adjustment, see 41 00... BODY GAP DIMENSIONS .

Installation note:

Latch mechanisms and guides (1) must not be damaged or missing.

If necessary, replace faulty sheet metal nuts left/right.

Fig 6: Identifying Latch Mechanisms And Guides

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Replacement:

Remount the cover for the towing eye
Remount the number plate
Remount REAR REFLECTORS

Unlock retaining tabs (1) in the direction of the arrow and pull out ultrasonic sensor (2) upwards from bracket (3).

Installation note:

Retaining hooks of ultrasonic sensor (2) must engage exactly in retaining tabs (1).

Fig 7: Unlocking Retaining Tabs

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Installation note:

Make sure rubber ring (1) is correctly fitted on ultrasonic sensor (2).

Fig 8: Identifying Rubber Ring And Ultrasonic Sensor

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