66 31 006 Removing and installing (replacing) ACC sensor

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2007 BMW 530xi, 2007 BMW 530i, 2007 BMW 525xi, 2007 BMW 525i, and 2006 BMW 530xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove front bumper trim

Lift out wiring harness (1) at points (2).

Disconnect impact absorber (3) at carrier (4) and remove.

Fig 1: Disconnecting Impact Absorber

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Installation:

Mountings (1) of impact absorber (2) must not be damaged.

Fig 2: Identifying Mountings Of Impact Absorber

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Unfasten plug connection (1) and disconnect. Unscrew nuts (2).

Installation:

Replace self-locking nuts.

Release screw (3).

Feed out ACC sensor (4) with retaining plate (5) in direction of arrow and remove.

Fig 3: Feeding Out ACC Sensor With Retaining Plate

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Unfasten plug connection (1) and disconnect.

Unclip electric cable (2) at cable guides (3).

Release screws (4) and remove ACC sensor (5) from retaining plate (6).

Fig 4: Disconnecting Plug Connection

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Installation:

Adjustment aid (1) must not be damaged.

If necessary, detach adjustment aid (1) from retaining plate (2). To do so, unlock catches (3) and detach adjustment aid (1) in direction of arrow from retaining plate (2).

Fig 5: Detaching Adjustment Aid From Retaining Plate

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Replacement:

Carry out rough adjustment of ACC sensor (1). If necessary, perform rough adjustment at adjusting screws (2).

Measurement A [mm]: 22.5 to 25.0

Fig 6: Identifying Adjustment Of ACC Sensor

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Replacement:

Carry out ACC sensor adjustment using BMW diagnostic system.

Replacement:

Carry out programming/coding.