72 11 041 Removing and installing/replacing front left or right lower belt fitting (seat belt tensioner)

Necessary preliminary tasks:

Remove front seat

WARNING: Read and comply with safety regulations for handling airbag modules and pyrotechnical belt tensioners.
Improper handling can lead to triggering of the pyrotechnical seat belt tensioner or side airbag, resulting in injuries.

Switch off ignition!

Unfasten plug connection (1) and disconnect.

Unlock plug connection (3) and pull all plugs out of plug housing (2).

Disconnect all cable straps.

Removing wiring harness.

Installation:

Replace cable straps
Wires must not be under tension
Plugs are coded and must be reinstalled in the correct sequence in the plug housing

Fig 1: Unlocking Plug Connection
Courtesy of BMW OF NORTH AMERICA, INC.

Only in event of replacement for E87 with build date before 09/2004:

New seat belt tensioners are supplied with belt buckle contacts which are not required before this build date.

Disconnect contacts at pin 14 and pin 15
Tie both contacts to rear

Fig 2: Disconnecting Contacts At Pin 14 And 15
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Clear all fault memories and code car again.

Release screw (1).

Tightening torque 72 11 6AZ. See RESTRAINT SYSTEM - TIGHTENING TORQUES .

Remove belt tensioner (3).

Installation:

Belt tensioner (3) is secured through recess (2) to retaining bracket.

Fig 3: Identifying Belt Tensioner And Screw

Courtesy of BMW OF NORTH AMERICA, INC.