Home/BMW/Z4/BMW Z4 E89 (2009-2013)/Repair manual/Airbag/Restraints - Tightening Torques
Contents Wiring diagrams Section: Airbag All sections

Restraints - Tightening Torques BMW Z4 E89

72 12 Airbag modules

TypeThreadTightening specificationMeasure
1AZPassenger airbag module to instrument panelE89Hexagon nut with flange, self-locking8 Nm
2AZKnee airbag module - to support tubeE898 Nm
3AZSide airbag to backrest frameE896.5 Nm

TIGHTENING TORQUE SPECIFICATION - AIRBAG MODULES

72 11 Seat Belts

TypeThreadTightening specificationMeasure
Seat belt, front
1AZRetractor mechanism - to bodyE89Replace microencapsulated screws36 Nm
2AZAnchor fitting, belt - to front seatE89Replace microencapsulated screws44 Nm
3AZBelt deflection fitting - to B-pillar, topE89Replace microencapsulated screws90 Nm
4AZBelt strap deflector - to bodyE894 Nm
5AZBelt tensioner - to front seatE89Replace microencapsulated screws38 Nm

TIGHTENING TORQUE SPECIFICATION - SEAT BELTS

TypeThreadTightening specificationMeasure
1AZSeat belt, Automatic reel, Lower strap, Anchor fitting, Belt tensioner to bodyE36/E31/E38/E39/E46/E52/E53/E83Replace screws31 Nm
Seat belt on B-pillarAll, except E53Replace screws31 Nm
Seat belt/belt tensioner to seat, on Touring also to rear seat backrestAll, except E52/E53Replace screws48 Nm
2AZScrews for seatbelt height adjustment on bodyAllReplace screws22 Nm
3AZSeat belt to seat Install bolt with bolt cement.E31Replace screws47 Nm
4AZSeat belt to backrestE31Replace screws24 Nm
5AZHeadrest to backrestE3124 Nm
6AZSeat belt at belt height adjustment (reversing clip)AllReplace screws31 Nm
7AZTension relief between roller sun blind bracket and backrest lock bracketE39/224 Nm
8AZRetaining angle, belt tensioner to seat railE46/E83Replace screws24 Nm
9AZSlide bar to bodyE46Replace screws44 Nm
10AZCounter-support plate to body, B- and C-pillarsE5339 Nm
11AZSeat belt to seat (end fitting)AllReplace screws45 Nm
12AZScrew of seatbelt height adjuster to counter-support plateE53Replace screws31 Nm
13AZBelt tensioner to seatE83Replace screws45 Nm
E52/E53Replace screws31 Nm
14AZInertial reel unit to body/B-pillarE53/E83Replace screws31 Nm
15AZAutomatic reel on rear seat backrestE53Replace screws45 Nm
E83Replace screws35 Nm
16AZBelt guide to front seat (sash guide to head restraint clip)E46 ConvertibleReplace screws8 Nm
17AZAutomatic reel to front seat backrestE46 ConvertibleReplace screws39 Nm
18AZCoupling gearing to centering pinE46 Convertible2.5 Nm
19AZCorner hoop to side panel, inner (B-pillar)E53/E833 ±0.5 Nm
20AZUpper belt loop to bodyE83Replace screws31 Nm
21AZAutomatic reel to bodyE83Replace screws31 Nm

TIGHTENING TORQUE SPECIFICATION - SEAT BELTS