66 31 006 Removing and installing (replacing) ACC sensor

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks

Remove FRONT BUMPER TRIM

Disconnect plug connection (1).

Unclip ACC sensor (2) from ACC holder (3) towards front.

Installation:

Make sure ACC sensor (2) is correctly engaged in ACC holder (3).

Fig 1: Identifying ACC Sensor With Holder And Plug Connection

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IMPORTANT: Always replace plastic nuts (1).

Turn plastic nuts (1) with a suitable tool through approx. 90° and pull towards rear out of holder (2).

Fig 2: Turning Plastic Nuts

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Check preliminary adjustment of ACC sensor (1).

If necessary, carry out preliminary adjustment at retaining pins (2).

Basic dimension A: 43 ± 0.5 mm
Final dimension A: is adapted by means of ACC SENSOR ADJUSTMENT

Fig 3: Identifying ACC Sensor With Dimensions For Adjusting Retaining Pins

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: After fitting front bumper trim, check concentric position of
ACC sensor eye (1) in relation to trim (3).

If necessary, carry out position adjustment by means of screws (2).

Tightening torque 66 31AZ1 .

Make sure plain ACC sensor (1) can move freely.

Fig 4: Identifying ACC Sensor Eye, Trim With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement

Carry out PROGRAMMING/CODING using scan tool.

Carry out ACC SENSOR ADJUSTMENT using BMW diagnostic system.