66 20 536 Removing and installing/replacing a rear middle left ultrasonic transducer (Park Distance Control)

WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary work:

Remove REAR BUMPER TRIM

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

Fig 1: Pulling Out Ultrasound Transducer From Bracket

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 Hooks

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.