Seat Belt Tensioner: Service and Repair

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







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 the ignition.







Installation note:
- Microencapsulated screws must be replaced and may not be reused
- The screw connection must be closed within 20 minutes (start of hardening)
- Microencapsulated screws must not be retightened
- Clean thread of nut beforehand in event of repeated use







Necessary preliminary tasks:
- Remove left or right front seat







Detach cable straps (1) on clip.
Cut open cable strap (2).
Unlock connector (3) and pull out of connector housing.
Feed wiring harness of belt tensioner out of seat mechanism.

Installation note:
Replace faulty cable straps.







Unlock plug connection (3) and disconnect.
Lever clamp (4) out of seat mechanism.
Release screw (1).
Tightening torque 72 11 09AZ.

Installation note:
Belt tensioner is coded against incorrect assembly (2).
Replace screw (1).

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