66 20 542 Removing and installing/replacing a rear ultrasonic transducer

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary work:

Remove REAR BUMPER TRIM

Unfasten plug connection (1) and disconnect. Unlock latch mechanisms (2) and pull ultrasonic transducer (3) out of bracket.

Installation note:

Retaining tabs (2) must not be damaged!

Make sure ultrasonic sensor is securely seated.

Fig 1: Identifying Plug Connection, Tabs And Ultrasonic Transducer

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Before installation of ultrasonic sensor (3) on wiring harness, clean plug connection!

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

Fig 2: Identifying Rubber Ring And Ultrasonic Transducer

Courtesy of BMW OF NORTH AMERICA, INC.