BMW 1999-2005 M3 Service Manual page 1202

Seat Belts
9 of 10
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/7...
connected to the backrest hinge through
a lever and a cable drive (coupler
mechanism). As the angle of the
backrest is adjusted, the cable drive will
change the angle of the inertia lock. In
this way the reel is in the proper position
for locking at any seat back angle.
The seat belt lock and tensioner on the
SGS system is a pyrotechnic device
similar to that on other E46 models.
When working on SGS belts, be sure to
read the warnings and cautions in the
procedure for front seat belt tensioner
removal and installation, earlier in this
group.
Note:
SGS seat belt removal can only be
carried out with the seat out of the
car. See 520
Once the seat has been removed,
the seat backrest must be partially
disassembled. The accompanying
illustration provides information on
SGS component locations and
fastener torques.
Seat-integrated seat
belt system (SGS)
(Convertible)
1
2
3
Seats.
- Coupler
mechanism
- Self-tapping
screw M4.2
tighten to 2.5 Nm
(22 in-lb)
- Threaded pin
2/25/2009 11:20 PM