Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove REAR LEFT WHEEL ARCH COVER

Release screws (1) and lower complete mounting plate (2).

Unlock and disconnect associated plug connection, remove complete mounting plate (2).

Fig 1: Identifying Screws And Lower Complete Mounting Plate

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove emergency power siren with tilt sensor (2) from mounting plate (3).

Fig 2: Identifying Nut, Tilt Sensor And Mounting Plate

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out vehicle programming/encoding.