66 32 020 Removing and installing/replacing sensor for lane change warning

WARNING: This page is about a different car, the 2014 BMW 428i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove REAR BUMPER PANEL .

Unfasten plug connection (1) and disconnect.

Unlock catch (2).

Remove sensor (3) from bracket in direction of arrow.

Fig 1: Removing Sensor From Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Remount frame (2) for new sensor (1).

Fig 2: Identifying Sensor Frame

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: If, in the event of side damage to the vehicle, it is not necessary to replace the tail panel, observe the following points:

Fit middle bumper panel guide on undamaged side
Use middle bumper panel guide as a gauge order to check or correct the position of the remaining connecting points.
Middle bumper panel guide must be able to fitted without tension.

Replacement:

Carry out VEHICLE PROGRAMMING AND ENCODING .

Replacement/after body repair:

-> Execute diagnosis job

Start-up
- Lane change warning sensor system