65 77 720 Removing and installing (replacing) left B-pillar sensor

Necessary preliminary tasks: 

• DISCONNECT BATTERY NEGATIVE LEAD and cover.
• Remove FRONT ENTRANCE COVER STRIP .
• Remove seat belt retractor with holder.

Version with rear cabin air conditioning: 

• Remove FRONT SEAT .
• Remove rear cabin ventilation duct from B-pillar.
• Partially detach carpet in area of B-pillar.
• If necessary, remove rear cabin ventilation duct under carpet.

Release screws (1), feed out sensor and disconnect associated plug connection.

Tightening torque 65 77 3AZ .

Fig 1: Identifying Rear Cabin Ventilation Duct Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Establish correct positioning of B-pillar sensor (1) by means of guide pin (2) and screw (3).

Fig 2: Identifying B-Pillar Sensor, Guide Pin And Screw

Courtesy of BMW OF NORTH AMERICA, INC.