Engine - Tightening Torques — BMW X6 M E71 (2009-2012)

11 31 Camshaft

	Type	Thread	Tightening specifications	Dimension
1AZ Tensioning rail and guide rail, cyl. 1 to 4, to crankcase	S63O 0	M10x1.25	Insert screws dry	46 Nm
2AZ Tensioning rail and guide rail, cyl. 5 to 8, to crankcase	S63O 0	M8x1.25		20 Nm
3AZ Guide rail to cylinder head	S63O 0	M14x1, 5	Replace sealing ring	25 Nm
4AZ Sliding rail to cylinder head	S63O 0	M7		15 Nm
5AZ Chain tensioner to cylinder head	S63O 0	M7		13 Nm
6AZ Camshaft bearing cap to cylinder head	S63O 0	M7		15 Nm
7AZ Camshaft step bearing cap to cylinder head	S63O 0	M7		15 Nm

TIGHTENING TORQUE SPECIFICATIONS - CAMSHAFT

11 15 Case Covers

	Type	Thread	Tightening specifications	Dimension
1AZ Connection to cylinder head cover	S63O 0	M6		10 Nm
2AZ Heat shield to cylinder head cover	S63O 0	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - CASE COVERS

11 14 Case Covers

	Type	Thread	Tightening specifications	Dimension
1AZ Jump guard to crankcase	S63O 0	M6		10 Nm
2AZ Gear case cover to crankcase, bottom	S63O 0	M8		21 Nm
3AZ Gear case cover to cylinder head, top	S63O 0	M6		10 Nm
4AZ End cover (oil) to crankcase (transmission side)	S63O 0	M6	Observe tightening sequence (liquid sealing compound required)	10 Nm
5AZ End cover (water) to crankcase (transmission side)	S63O 0	M6	Observe tightening sequence (liquid sealing compound required)	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - CASE COVERS

11 24 Connecting Rods and Bearings

	Type	Thread	Tightening specifications	Dimension
1AZ Connecting rod bolts	S63O 0	M9	Replace, wash and oil screws
			1. Jointing torque	5 Nm
			2. Jointing torque	20 Nm
			3. Angle of rotation	70 °

TIGHTENING TORQUE SPECIFICATIONS - CONNECTING RODS AND BEARINGS

11 51 Coolant pump

	Type	Thread	Tightening specifications	Dimension
1AZ Coolant pump to gear case.	S63O 0	M6x25 M6x70 M6x90	Replace gasket.	10 Nm
2AZ Coolant temperature sensor to coolant pump.	S63O 0	M12 x 1.5		13 Nm
3AZ Supplementary coolant pump to bracket.	S63O 0	K3.5x20		1, 5 Nm

TIGHTENING TORQUE SPECIFICATIONS - COOLANT PUMP

11 21 Crankshaft and Bearings

	Type	Thread	Tightening specification	Measure
1AZ Increment wheel on crankshaft	S54	M5 10.9	Replace screws
			Jointing torque	5.0 Nm
			Torque angle	45 °
Increment wheel on crankshaft	M5 10.9	Replace screws		13 Nm
Increment wheel on crankshaft	M5 8.8	Replace screws		5.5 Nm

TIGHTENING TORQUE SPECIFICATIONS - CRANKSHAFT AND BEARINGS

11 12 Cylinder head with cylinder head cover

	Type	Thread	Tightening specifications	Dimension
1AZ Cylinder head bolt	S63O 0	M11 x 1.5	Replace screws.
			Jointing torque	30 Nm
			1. Angle of rotation	90 °
			2. Angle of rotation	90 °
2AZ Cylinder head bolt to gear case cover	S63O 0	M8		23 Nm
3AZ Cylinder head cover to cylinder head.	S63O 0	M6		10 Nm
4AZ Metal bracket to cylinder head.	S63O 0	M6		8 Nm
5AZ Lifting eye to cylinder head.	S63O 0	M8		22 Nm
6AZ Ignition coil cover to cylinder head cover.	S63O 0	M6		4 Nm
7AZ Non-return valve	S63O 0	M14x1, 5		20 Nm
8AZ Ventilation connection	S63O 0	M8x1	Replace sealing ring.	15 Nm
9AZ Oil filler neck to cylinder head cover.	S63O 0	M6	Replace sealing ring.	14 Nm
10AZ Screw plug to cylinder head	S63O 0	M10x1	Replace sealing ring.	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - CYLINDER HEAD WITH CYLINDER HEAD COVER

11 78 Emissions control, control sensor / monitoring sensor

	Type	Thread	Dimension
1AZ Control sensor / monitoring sensor	S63O 0	M18 x 1.5	50 Nm
2AZ Bracket, oxygen sensor, to cylinder head cover	S63O 0	M6	10 Nm
3AZ Support bridge to cylinder head cover	S63O 0	M6	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - EMISSIONS CONTROL, CONTROL SENSOR / MONITORING SENSOR

	Type	Thread	Tightening specification	Measure
1AZ Control sensor / monitoring sensor	N74	M18 x 1.5		50 Nm
2AZ Bracket, oxygen sensor, to cylinder head cover	N74	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - EMISSIONS CONTROL, CONTROL SENSOR / MONITORING SENSOR

11 78 Emissions-control, Lambda oxygen sensor

	Type	Thread	Tightening specification	Measure
1AZ Oxygen control sensor; oxygen monitor sensor	All	M18 x 1.5		50 Nm

TIGHTENING TORQUE SPECIFICATIONS - EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR

11 11 Engine block

	Type	Thread	Tightening specifications	Dimension
1AZ Bearing cap to crankcase (ASA collar bolt)	S63O 0	M11x102	Replace screws.
			Jointing torque	20 Nm
			Angle of rotation	100 °
2AZ Bearing cap to crankcase (ASA collar bolt 10.9)	S63O 0	M8x70	Replace screws.
			Jointing torque	10 Nm
			Angle of rotation	55 °
3AZ Threaded support sleeves	S63O 0		Jointing torque	6 Nm
4AZ Angled screw connection to crankcase	S63O 0	M8x37	Flanged head screw 10.9	34 Nm
5AZ Spacer bolt, oil pump	S63O 0	M8		34 Nm
6AZ Screw plug, gutter strip	S63O 0	M14x1, 5	Replace gasket.	25 Nm
7AZ Screw plug, main oil gallery rear and in V-space right	S63O 0	M18x1.5	Replace gasket.	25 Nm
8AZ Oil nozzle to crankcase	S63O 0	M12x1		10 Nm
9AZ Special tool to crankcase	S63O 0	M8x35		20 Nm
10AZ Special tool to crankcase	S63O 0	M10x35		40 Nm
10AZ Special tool 11 8 930 to special tool 00 2 300	S63O 0	M14x35		160 Nm

TIGHTENING TORQUE SPECIFICATIONS - ENGINE BLOCK

11 62 Exhaust manifold

	Type	Thread	Tightening specification	Measure
1AZ Exhaust manifold to cylinder head Coat screw connections with CRC copper paste	All	M6	Replace nuts	10 Nm
	M50 / M52 / M52TU / M54 / M56 / S52 / S50 US	M7	Replace nuts	20 Nm
	All / others	M7	Replace nuts	15 Nm
	M10	M8	Upper row of staybolts installed with bolt cement	23 Nm
	M21	M8	Replace nuts Retighten after 2000 km Slacken nuts by a 1/4 turn	12 Nm
	M21	M8		12 Nm
	M41 / M47 / M47TU / M51 / M57 / M57TU	M8	Replace nuts	20 Nm
	All / others	M8	Replace nuts	23 Nm

TIGHTENING TORQUE SPECIFICATIONS - EXHAUST MANIFOLD

11 52 Fan

	Type	Measure
1AZ Fan clutch on water pump Coupling nut (left-hand threads)	All	40 Nm
	M54	45 Nm
2AZ Fan to fan clutch	All	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - FAN

11 22 Flywheel

	Type	Thread	Tightening specifications	Dimension
1AZ Flywheel to crankshaft (automatic transmission)	S63O 0	M12x1.5	Replace screws	105 Nm

TIGHTENING TORQUE SPECIFICATIONS - FLYWHEEL

11 61 Intake manifold

	Type	Thread	Measure
1AZ Intake manifold on cylinder head	All	M8	22 Nm
	All	M7	15 Nm
	All	M6	10 Nm
2AZ Soundproofing hood to holder	M60/1 / M60/2 / M62	M6	8 Nm

TIGHTENING TORQUE SPECIFICATIONS - INTAKE MANIFOLD

11 61 Intake plenum

	Type	Thread	Tightening specifications	Dimension
1AZ Intake manifold to cylinder head	S63O 0	M7		15 Nm
2AZ Holder, intake module, to cylinder head	S63O 0	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - INTAKE PLENUM

11-42 Oil Filter and Lines

	Type	Thread	Tightening specifications	Dimension
1AZ Oil filter cover to oil sump upper part	S63O 0	S88.5x3	O-ring lightly oiled
			1. Initial tightening	30 Nm
			2. Release oil filter cover through	180°
			3. Final torque	40 Nm
2AZ Oil drain plug to oil filter cover	S63O 0	M12	Replace sealing ring	10 Nm
3AZ Turbocharger oil line to crankcase	S63O 0	M12x1.5	Replace sealing ring	27 Nm
4AZ Oil line to turbocharger	S63O 0	M10x1	Replace sealing ring	16 Nm
5AZ Oil line to exhaust gas turbocharger (inlet)	S63O 0	M6x16	Replace seal	10 Nm
6AZ Oil line to oil return lid	S63O 0	M6x14	Replace seal	10 Nm
7AZ Holder, oil line to turbocharger	S63O 0	M6	Screw, non-captive	10 Nm
8AZ Oil return cover to crankcase	S63O 0	M6x20	Replace seal	10 Nm
9AZ Oil return line to turbocharger	S63O 0	M6x16		10 Nm
10AZ Oil return line to oil return cover	S63O 0	M6	Screw, captive	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - OIL FILTER AND LINES

11 43 Oil filling

	Type	Thread	Tightening specifications	Dimension
1AZ Oil cooler thermostat to oil sump upper part	S63O 0	M33x2		95 Nm

TIGHTENING TORQUE SPECIFICATIONS - OIL FILLING

11 41 Oil pump with strainer and motor

	Type	Thread	Tightening specifications	Dimension
1AZ Intake manifold to oil pump	S63O 0	M6		10 Nm
2AZ Oil pump to bearing cap	S63O 0	M8		24 Nm
3AZ Oil pump cover to housing	S63O 0	M6		10 Nm
4AZ Sprocket to oil pump	S63O 0	M10	Important - left-hand thread
			1. Jointing torque	20 Nm
			2. Angle of rotation	40 °
5AZ Oil pump sprocket to hub	S63O 0	M6		10 Nm
6AZ Oil deflector to oil pump	S63O 0	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - OIL PUMP WITH STRAINER AND MOTOR

11 13 Oil sump

	Type	Thread	Tightening specifications	Dimension
1AZ Oil drain plug	S63O 0	M18 x 1.5	Replace sealing ring	40 Nm
2AZ Oil sump upper section to crankcase	S63O 0	M8		25 Nm
3AZ Oil sump, lower section to upper section	S63O 0	M8	Replace microencapsulated screws	27 Nm
4AZ Oil deflector to oil sump upper section	S63O 0	M6		10 Nm
5AZ Screw plug, oil channel, to oil sump upper section	S63O 0	M24x1.5	Replace sealing ring	50 Nm
6AZ Oil condition sensor to lower oil sump section	S63O 0	M6	Replace O-ring	8, 5 Nm
7AZ Oil temperature regulator to oil sump upper part (control valve)	S63O 0	M33x2	Replace sealing ring	100 Nm

TIGHTENING TORQUE SPECIFICATIONS - OIL SUMP

11 00 Standard screw connection

	Thread	Measure
1AZ Screws and nuts	M5	5 Nm ± 0.5
2AZ Screws and nuts	M6	8 Nm ±±1
3AZ Screws and nuts	M7	13 Nm±2
4AZ Screws and nuts	M8	19 Nm±3
5AZ Screws and nuts	M10	38 Nm±5
6AZ Hose clamp, WAF 5		1.0 to 1.5 Nm
7AZ Hose clamp, WAF 6		2.5 up to3.5 Nm

TIGHTENING TORQUE SPECIFICATIONS - STANDARD SCREW CONNECTION

11 53 Thermostat and Connections

	Type	Thread	Dimension
1AZ Thermostat housing to coolant pump	S63O 0	M6	10 Nm
2AZ Coolant line to turbocharger (supply)	S63O 0	M14x1, 5	38 Nm
3AZ Coolant line to turbocharger (drain)	S63O 0	M14x1, 5	38 Nm
4AZ Coolant line to turbocharger (supply)	S63O 0	M6x16	10 Nm
5AZ Coolant line to turbocharger (drain)	S63O 0	M6x16	10 Nm

TIGHTENING TORQUE SPECIFICATIONS - THERMOSTAT AND CONNECTIONS

11 65 Turbocharger and Control

	Type	Thread	Tightening specifications	Dimension
1AZ Exhaust manifold to turbocharger (D80 V-band clamp).	S63O 0	M8	Replace V-band clamp	13 Nm
2AZ Turbocharger to primary catalyst (D108 V-band clamp).	S63O 0	M8	Replace V-band clamp	13 Nm
3AZ Heat shield to heat shield, side.	S63O 0	M6 x 16		10 Nm
4AZ Heat shield to support.	S63O 0	M6 x 16		10 Nm
5AZ Heat shield to heat shield, rear.	S63O 0	M6 x 16		10 Nm
6AZ Vacuum reservoir to crankcase / cylinder head.	S63O 0	M6		10 Nm
7AZ Heat shield to heat shield, rear.	S63O 0	M6	Screw, captive	10 Nm
8AZ Heat shield, bottom, to crankcase / oil return cover.	S63O 0	M6 x 14		10 Nm
9AZ Heat shield to crankcase.	S63O 0	M6 x 22		10 Nm
10AZ Heat shield turbocharger and alternator to cylinder head.	S63O 0	M6 x 14		10 Nm
11AZ Bracket, electropneumatic pressure converter, to cylinder head.	S63O 0	M6x18		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - TURBOCHARGER AND CONTROL

11 28 V-ribbed belt with Tension and Deflection Element

	Type	Thread	Tightening specifications	Dimension
1AZ Belt tensioner with deflection pulley to crankcase	S63O 0	M10		40 Nm
2AZ Belt pulley to torsion vibration absorber	S63O 0	M10		40 Nm

TIGHTENING TORQUE SPECIFICATIONS - V-RIBBED BELT WITH TENSION AND DEFLECTION ELEMENT

11 66 Vacuum pump

	Type	Thread	Tightening specifications	Dimension
1AZ Vacuum pump to cylinder head (1-4)	S63O 0	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - VACUUM PUMP

11 36 Variable camshaft control

	Type	Thread	Tightening specifications	Dimension
1AZ VANOS gear to inlet and A-camshaft (Contact surface on screw head must greased with mounting paste)	S63O 0	M10x1	Replace screw
			Jointing torque	30 Nm
			Angle of rotation	90 °
2AZ Non-return valve VANOS to cylinder head	S63O 0	M14 x 1.5		20 Nm
3AZ Solenoid valve holder to cylinder head	S63O 0	M6		10 Nm

TIGHTENING TORQUE SPECIFICATIONS - VARIABLE CAMSHAFT CONTROL

11 23 Vibration damper

	Type	Thread	Tightening specifications	Dimension
1AZ Hub to crankshaft (head surface oiled)	S63O 0	M18x1.5	Replace screw
			1. Jointing torque	100 Nm
			2. Angle of rotation	60 °
			3. Angle of rotation	60 °
			4. Angle of rotation	60 °

TIGHTENING TORQUE SPECIFICATIONS - VIBRATION DAMPER

Engine - Tightening Torques BMW X6 M E71