66 20 518
Necessary preliminary tasks:
Partially remove front wheel arch trim
Release screws (1).
Turn wheel (1) inwards side to provide more space in work area.
Pull wheel arch cover (2) to one side in direction of arrow.
Unclip ultrasonic sensor (1) from retaining tabs (2).
Unfasten plug connection (3) and disconnect.
Clean the plug connection (3) before installing the ultrasonic sensor (1) on the wiring harness!
Retaining tabs (2) must not be damaged!
Make sure ultrasonic sensor is securely seated.
Make sure rubber ring (1) is correctly seated on ultrasonic sensor (2).