Replacing Front Seat Belts

Removing And Installing Or Replacing Front Seat Belt (Z3)


CAUTION!
Note safety regulations for handling airbag modules and pyrotechnical seat belt tensioners.
Inexpert handling can trigger off the airbag or the belt tensioner and thus cause injuries.
Remove and install left or right front seat (normal/electric) (Z3 Roadster). Remove lower section of side trim, rear left or right.







Mechanical belt tensioner:


CAUTION!
To prevent accidental triggering, secure seatbelt tensioner unit before doing any work on the seatbelt tensioner or front seat!


Procedure:
Twist slotted screw in seatbelt tensioner with screwdriver until a display appears in the screen (arrow), changing from
green = armed (functional)
to
red = disarmed.

Installation:
After work is complete, rearm the seatbelt tensioner!







Pyrotechnical belt tensioner:
Remove orange plug connection (1) for belt tensioner.
Open cable connector (2).

Installation:
Secure wire with cable tie (2) so that orange plug connection is not under strain.







If necessary, release screw (1) and remove seat belt.







Installation:
Note position of mount on seat frame:
1 = retaining screw
Tightening Torque, 48 Nm
2 = locating lugs must be between tabs on seatbelt (3)
3 = tab on seat belt







Mechanical belt tensioner:
Unfasten nut (1) and remove seatbelt tensioner.

Installation:
Insert seatbelt tensioner in coding (2); screw on and tighten down nut (1).
Tightening Torque, 48 Nm.







Pyrotechnical belt tensioner:
Unscrew bolt (1).
Remove belt tensioner.
Tightening Torque, 48 Nm

Note coding of belt tensioner at seat:
1. Bolt
2. Belt tensioner
3. Lockwasher