52 10 Front Seats

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, 2007 BMW X3, and 2006 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

FRONT SEATS - TIGHTENING TORQUES

	Type	Thread	Tightening specification	Measure
1AZ Seat to floor plate	E31 / E32 / E34 / E36	M10		44 Nm
	E36 / Z3 front	M8		22 Nm
	E36 / Z3 rear	M10		43 Nm
	E38 / E39 / E46 / E52 / E53 / E63 / E64 / E83 / E85	M10		45 Nm
			Torque angle	90°
	E60 / E61 / E65 / E66 / E67 / E87 / E90 / E91	M10 (trilobular)	Replace Powerlok screw	44 Nm
2AZ Backrest frame to seat frame	E36			60 Nm
	E63 / E64 / E83 / E85			32 Nm
	E46 all except Convertible		Replace screws	32 Nm
	E65 / E66 / E67 / E60 / E61	M10 (trilobular)	Replace Powerlok screw	33 Nm
	E53			45 Nm
3AZ Support (backrest shell) to headrest rail	E31			6.5 Nm
4AZ Head restraint rail to backrest frame	E31			25 Nm
5AZ Finisher on seat rail	E38 / E39	M4		4 Nm
6AZ Seat frame to seat runner	E38 / E39	M6		15 Nm
	E60 / E61 / E65 / E66	M8		27 Nm
7AZ Actuating unit to seat frame	E46 / E85			10±² Nm
8AZ Adjusting screw for eccentric element	E46 / E85			1.4 Nm
9AZ Seat pan to seat frame	E46 / E53 / E63 / E64 / E83 / E85			10±² Nm
10AZ Microswitch to front seat	E46			2±¹ Nm
11AZ Backrest frame to seat rail	E31			25 Nm
12AZ Trims to seat mechanism	E63 / E64			3 Nm
13AZ Trim to seat cushion shell	E63 / E64			4.4 Nm
14AZ Backrest frame to seat frame - Screw	E46 Convertible		Replace screws	24 ±⁴ Nm
15AZ Backrest frame to seat frame - Pin with knurling and lock nut	E46 Convertible		Replace screws	40 ±⁵ Nm
16AZ Seat tilt adjuster to seat mechanism	E46 / E53 / E83 / E85	M6 x 10 (trilobular)	Replace Taptite screw	9 Nm
17AZ Seat tilt adjuster to seat pan	E46 / E53 / E83 / E85			9 Nm
18AZ Active head restraint Sliding rails with gas cartridge	E60 / E61 / E65 / E66 / E67			8 Nm
19AZ Belt guide to backrest	E85			1.25 Nm
20AZ Kinematic element to backrest frame	E46 Convertible			3 ⁺² Nm