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Seats - Tightening Torques - e90 BMW M3 E90

52 10 Front seats

TypeThreadTightening specificationMeasure
1AZ Seat to floor plateE81/E82/E87/E88/E90/E91/E92/E93M10 (trilobular)Replace Powerlok screw44 Nm
2AZ Backrest frame to seat frameE81/E82/E87/E88/E90/E91/E92(trilobular)Replace Powerlok screw32 Nm
3AZ Bracket, control unit, to seat mechanismE81/E82/E87/E88/E90/E91/E922 Nm
4AZ Carrier section for electr. actuating unitE81/E82/E87/E88/E90/E91/E929 Nm
5AZ Mounting, Isofix bracket to backrest frameE81/E82/E87/E88/E90/E91/E92M610 Nm
E81/E82/E87/E88/E90/E91/E92M53 Nm
6AZ Trim to seat, outerE81/E82/E87/E88/E90/E91/E921 Nm
7AZ Backrest frame to seat frame ScrewE93Replace screw24 +4 Nm
8AZ Backrest frame to seat frame Pin with knurling and lock nutE93Replace screw40 +5 Nm
9AZ Kinematic element to backrest frameE933 +2 Nm
10AZ Seat depth adjustment to seat mechanismE81/E82/E87/E88/E90/E91/E922.6 Nm
11AZ Microswitch to front seatE932 ±1 Nm

TIGHTENING TORQUE SPECIFICATION - FRONT SEATS

52 24 Rear Seat (normal), manual

TypeThreadTightening specificationMeasure
1AZ Backrest on bodyE90M831 Nm
E8818.5 Nm
2AZ Lock to bodyE9018.5 Nm
3AZ Top Tether eyeletE90/E9222 Nm
4AZ Eyelet, retaining strapE8822 Nm
5AZ Transportation box (ski bag)E889 Nm

TIGHTENING TORQUE SPECIFICATION - REAR SEAT (NORMAL), MANUAL

52 26 Rear seats (through-loading system)

TypeThreadTightening specificationMeasure
1AZ Outer mount (backrest) to bodyE81/E82/E87/E90/E91/E92/E9331 Nm
E84Replace screws38 Nm
2AZ Centre mount (backrest) to bodyE81/E82/E87/E90/E91/E9221 Nm
3AZ Centre armrest to seat backE81/E82/E84/E87/E90/E91/E925± 0.35 Nm
4AZ Outer mount to seat backE81/E82/E87/E90/E91/E92/E9336 Nm
5AZ Striker to bodyE87/E9121 Nm
E939 Nm
6AZ Lashing eye to backrestE8715 Nm
7AZ Lock to backrestE87/E9120+5 Nm
8AZ Lock to bodyE81/E82/E90/E9218.5 Nm
9AZ Top Tether eyeletE90/E9222 Nm
10AZ Belt coverE8425 ± 3 Nm
11AZ Backrest to backrest supportE84Replace screws45 ± 5 Nm

TIGHTENING TORQUE SPECIFICATION - REAR SEATS (THROUGH-LOADING SYSTEM)