51 16 045 Removing and installing/replacing retaining ring on left or right exterior mirror (up to 07/13)

Necessary preliminary tasks: 

• Remove MIRROR GLASS 
• Remove MIRROR ADJUSTMENT DRIVE

Release screws (1).

Carefully bend exterior mirror protective cap outwards and carefully unclip retaining ring (2).

Latch mechanisms on retaining ring (2) and retaining lugs on protective cap must not be damaged in the process.

Fig 1: Identifying Exterior Mirror Retaining Ring And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Version with lane change warning: 

Also unlock and disconnect plug connection (1) for optical signal transmitter (2).

Remove retaining ring (3).

Fig 2: Identifying Optical Signal Transmitter Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.