66 31 006 Removing and installing (replacing) ACC sensor

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. 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: Identifying Wiring Harness, Points, Impact Absorber And Carrier

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 2: Identifying Mountings And Impact Absorber

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

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: Identifying Plug Connection, Cable, Cable Guides, Screws And ACC Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

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 Of Retaining Plate

Courtesy of BMW OF NORTH AMERICA, INC.

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 ACC Sensor And Adjusting Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out ACC sensor adjustment using BMW diagnostic system.

Replacement:

Carry out PROGRAMMING/CODING