Removing and installation/replacing emergency power siren with tilt sensor

Necessary preliminary tasks: 

• Remove REAR LEFT WHEEL ARCH COVER

Courtesy of BMW OF NORTH AMERICA, INC.

Loosen the screws or clips (1) and lower the mounting plate completely (2).

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

Replacement: 

Carry out VEHICLE PROGRAMMING/ENCODING .