66 20 515 Removing and installing/replacing a front left (outside) ultrasonic transducer (Park Distance Control)

WARNING: This page is about a different car, the 2014 BMW 428i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT BUMPER TRIM .

Disconnect plug connection.

Unlock retaining tabs (1) in direction of arrow and pull ultrasound transducer (2) upward out of bracket (3).

Fig 1: Pulling Ultrasonic Transducer Retaining Tabs

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Before installation of ultrasonic sensor (2) on wiring harness, clean plug connection!

Retaining hooks (1) of ultrasonic transducer (2) must engage exactly in mountings (3).

Fig 2: Identifying Ultrasonic Transducer Retaining Hooks And Mountings

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

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

Fig 3: Identifying Rubber Ring On Ultrasonic Sensor

Courtesy of BMW OF NORTH AMERICA, INC.