51 16 045 Removing and installing/replacing retaining ring on left or right exterior mirror (from 07/12)

Necessary preliminary tasks: 

• Remove DRIVE UNIT FOR EXTERIOR MIRROR .
• Remove PROTECTIVE CAP .

Version with lane change warning: Unlock plug connection (1) for optical signal transmitter and disconnect.

Fig 1: Identifying Connector

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Release screws (1 and 2). Installation note: Note installation position of screws (1 and 2).

• Screws (1) - metric thread
• Screw (2) non-metric thread

Make sure retaining ring (3) is correctly seated (arrows).

Fig 2: Identifying Screws And Retaining Ring

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Release latch mechanism (1) and feed out retaining ring (2) towards rear.

Fig 3: Identifying Latch Mechanism And Retaining Ring

Courtesy of BMW OF NORTH AMERICA, INC.