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

Necessary preliminary work:

NOTE: On vehicles with a N52 engine, the outer ultrasonic sensors can be accessed from the bottom without removing the bumper panel.

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

Fig 1: Unlocking Retaining Tabs

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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 Sensor And Hooks

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Installation note:

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

Fig 3: Identifying Rubber Ring And Ultrasonic Sensor

Courtesy of BMW OF NORTH AMERICA, INC.