66 20 540 Removing and installing/replacing a rear (left/right) ultrasonic transducer (Park Distance Control)

Necessary preliminary tasks:

NOTE: On cars with N52 engines, the outer ultrasonic transducers are accessible from below without having to remove the bumper trim.

Unlock retaining tabs (1) in direction of arrow and pull ultrasonic transducer (2) out of holder (3).

Fig 1: Identifying Retaining Tabs, Ultrasonic Transducer And Holder

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Installation:

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

Fig 2: Identifying Retaining Hooks, Ultrasonic Transducer And Mountings

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Installation:

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

Fig 3: Identifying Rubber Ring And Ultrasonic Transducer

Courtesy of BMW OF NORTH AMERICA, INC.