66 20 534 Removing and installing/replacing rear left ultrasonic sensor

WARNING: Risk of burning!
Work on the exhaust system may only be carried out when it has cooled down!

NOTE: For engine versions N57X: remove REAR BUMPER .
On all other engine versions, ultrasonic sensors are reached from the bottom with the bumper fitted.

Disconnect plug connection (1) and unclamp ultrasonic sensor from retaining tabs (2).

Fig 1: Identifying Plug Connection And Retaining Tabs

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Before installation of ultrasonic sensor on wiring harness, clean plug connection!

Retaining tabs (2) must not be damaged!

Make sure ultrasonic sensor is securely seated.

Installation note:

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

Fig 2: Identifying Rubber Ring And Ultrasonic Sensor

Courtesy of BMW OF NORTH AMERICA, INC.