66 20 535 Removing and installing/replacing rear right ultrasonic sensor

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Removal:

NOTE: On version with cover:

Undo expanding rivet or screws (1).

Release nut (3).

Release screws (4).

Remove cover (2) downwards.

Fig 1: Identifying Cover, Screws, Nut And Expanding Rivet Screws

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NOTE: Ultrasonic transducers (3) can be removed without the bumper panel being disassembled.

Unlock and disconnect the connector (1).

Release retaining tabs (2).

Pull ultrasonic sensor (3) out of bracket.

Fig 2: Identifying Ultrasonic Sensor, Connector And Retaining Tabs

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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

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Engage ultrasonic sensor (3) in bracket.

The retaining tabs (2) must lock correctly.

Connect the connector (1).

NOTE: Before installation of ultrasonic sensor (1) on wiring harness, clean plug connection!

Fig 4: Identifying Ultrasonic Sensor, Connector And Retaining Tabs

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NOTE: On version with cover:

Position cover (2) correctly.

Tighten screws (4).

Tighten the nut (3).

Fit expanding rivet or screws (1).

NOTE: Replace faulty expanding rivet (1) if necessary.

Fig 5: Identifying Cover, Screws, Nut And Expanding Rivet Screws

Courtesy of BMW OF NORTH AMERICA, INC.