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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2120 (Airbag, Audio, Navigation And Anti-Theft - Repair) >> Airbag Triggering Unit, Diagnostics >> 65 77 720 Removing and installing (replacing) left B-pillar sensor

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

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Note airbag safety instructions!  , see 72 00... SAFETY REGULATIONS FOR HANDLING COMPONENTS WITH GAS GENERATORS .
Incorrect handling can activate airbag and cause injury.

Necessary preliminary tasks: 

Release screw (1).

Installation: 

Replace screw (1).

Tightening torque 72 11 01AZ, see.

Unlock inertia reel unit (2) and remove from B-pillar.

Installation: 

Inertia reel unit (2) is coded against incorrect installation (3).

Fig 1: Identifying Reel Unit And Screw
G04792850Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts (1).

Slacken screw (2) and feed out sensor.

Tightening torque 65 77 3AZ  , see 65 77 AIRBAG TRIGGERING CONTROL .

Disconnect plug connection (3).

Installation: 

Replace microencapsulated screws (1, 2).

Fig 2: Identifying Plug Connection, Bolt And Screws
G06213911Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

Replace microencapsulated screws (3).

Fig 3: Identifying Microencapsulated Screws And Guide Pin
G04753746Courtesy of BMW OF NORTH AMERICA, INC.