66 20 536 Removing and installing/replacing a rear middle left ultrasonic transducer

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

NOTE: Ultrasonic transducers (3) can be reached from below with bumper installed.
Unlock plug connection (1) and disconnect.
Unlock latch mechanisms (2) and pull ultrasonic transducer (3) out of bracket.

Fig 1: Identifying Ultrasonic Transducers, Plug Connection And Latch Mechanisms

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note

Before installation of ultrasonic sensor (3) 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.