Engine - Tightening Torques — BMW M6 E63/E64 (2005-2010)

11 11 ENGINE BLOCK

	Type	Thread	Tightening specification	Measure
1AZ Main bearing bolts (steel bolts 10.9)	S85	M11x115	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			1. Jointing torque	30 Nm
			2. Angle of rotation	130 °
1AZ New main bearing bolts (steel bolts 10.9)	S85	M11x115	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			1. Jointing torque	30 Nm
			2. Angle of rotation	130 °
			3. Release all main bearing bolts.
			4. Jointing torque	30 Nm
			5. Angle of rotation	130 °
			6. Release all main bearing bolts.
			7. Jointing torque	30 Nm
			8. Angle of rotation	130 °
2AZ Fitting bolts (steel bolts 12.9)	S85	M8x94	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			Jointing torque	15 Nm
			Torque angle	100 °
3AZ Main bearing bolts (steel bolts 10.9)	S85	M8x65	Threads cleaned and oiled
			Jointing torque	5 Nm
			Torque angle	90 °
4AZ Main bearing bolts (steel bolts 10.9)	S85	M8x40	Threads cleaned and oiled
			Jointing torque	5 Nm
			Torque angle	60 °
5AZ Main bearing bolts (steel bolts 8.8)	S85	M6x25	Threads cleaned and oiled
			Jointing torque	15 Nm
6AZ Screw plug to crankcase, front	S85	M22x1.5	Replace seal	50 Nm
7AZ Screw plug to crankcase, main oil gallery	S85	M16x1.5	Replace seal	30 Nm
8AZ Coolant drain plug to crankcase	S85	M10x1	Replace seal	13 Nm
9AZ Screw plug to crankcase, front	S85	M14x1.5	Replace seal	15 Nm

IMPORTANT
Observe tightening specification.

IMPORTANT
Observe tightening specification.

IMPORTANT
Observe tightening specification.

TIGHTENING TORQUE SPECIFICATION - ENGINE BLOCK

11 12 CYLINDER HEAD WITH COVER

	Type	Thread	Tightening specification	Measure
1AZ Cylinder head bolts (steel bolt)	S85	M10x1.5x110	Replace screws Threads cleaned and oiled
			Jointing torque	40 Nm
			1. Angle of rotation	90 °
			2. Angle of rotation	90 °
2AZ Cylinder head bolts (steel bolt)	S85	M6	Replace screws Threads cleaned and oiled	8 Nm
3AZ Bearing cap to cylinder head	S85	M7x1	Replace screws Threads cleaned and oiled	15 Nm
4AZ Screw plug for water jacket to cylinder head.	S85	M26x1x5	Replace screws Threads cleaned and oiled	50 Nm
5AZ Screw plug to cylinder head	S85	M22x1.5	Replace screws Threads cleaned and oiled	50 Nm
6AZ Screwed gland for Mastervac	S85	M10x1	Replace screws Threads cleaned and oiled	13 Nm
7AZ Lifting lug to cylinder head	S85	M8	Replace screws Threads cleaned and oiled	15 Nm
8AZ Connection piece for electric switchover valve (secondary air)	S85	M8x1	Cylinder head 6 to 10 only	10 Nm
9AZ Screw plug for chain rail to cylinder head.	S85	M22x1.5	Replace screws Threads cleaned and oiled	50 Nm

TIGHTENING TORQUE SPECIFICATION - CYLINDER HEAD WITH COVER (1 OF 2)

	Type	Thread	Measure
11AZ Cylinder head cover	All	M6	10 Nm
	All	M7	15 Nm
	M21	M8	15 Nm
12AZ Oil trap to cylinder head cover	M21	M8	17 Nm
13AZ Timing case to cylinder head	All	M7	15 Nm
	All	M8	20 Nm
14AZ Plug for oil channel (microencapsulated)	M47 / M57	M12 x 1.5	20 Nm
15AZ Vent plugs to cylinder head (coolant)	M67		2 Nm

TIGHTENING TORQUE SPECIFICATION - CYLINDER HEAD WITH COVER (2 OF 2)

11 13 OIL PAN

	Type	Thread	Tightening specification	Measure
1AZ Oil drain plug	S85	M12x1.5	Replace sealing ring	25 Nm

TIGHTENING TORQUE SPECIFICATION - OIL PAN

11 24 CONNECTING RODS AND BEARINGS

	Type	Thread	Tightening specification	Measure
1AZ Connecting rod bolts	S85	M9x1	Replace screws Screws washed and oiled
			1. Jointing torque	6 Nm
			2. Setting torque	20 Nm
			3. Angle of rotation	130 °
			IMPORTANT: release connecting rod bolts.
			4. Jointing torque	6 Nm
			5. Setting torque	20 Nm
			Angle of rotation	130 °
			IMPORTANT: release connecting rod bolts.
			6. Jointing torque	6 Nm
			7. Setting torque	20 Nm
			8. Angle of rotation	130 °

IMPORTANT
Release connecting rod bolts.

IMPORTANT
Release connecting rod bolts.

TIGHTENING TORQUE SPECIFICATION - CONNECTING RODS AND BEARINGS

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 SPECIFICATION - CRANKSHAFT AND BEARINGS

11 22 FLYWHEEL

	Type	Thread	Measure
1AZ DM flywheel to crankshaft (manual transmission)	S85	M12x1.5	105 Nm

TIGHTENING TORQUE SPECIFICATION - FLYWHEEL

11 23 VIBRATION DAMPER

	Type	Thread	Tightening specification	Measure
1AZ Torsion damper to crankshaft hub	S85	M12x1.25 12, 9		25 Nm
			Jointing torque	60 Nm
			1. Angle of rotation	40 °
			2. Angle of rotation	40 °

TIGHTENING TORQUE SPECIFICATION - VIBRATION DAMPER (1 OF 2)

	Type	Thread	Tightening specification	Measure
3AZ Belt pulley / vibration damper to hub	S38 / B36	M8 10.9		34 Nm
	N40 / N42 / N45 / N46 / S38 / B38	M8 10.9		34 Nm
	All / others	M8		22 Nm
4AZ Belt pulley to vibration damper	S38 / B35	M8 8.8		22 Nm
	S50	M8 8.8		22 Nm
5AZ Sprocket with hub or hub to crankshaft	M40	M16 x 1.5	Replace screw	310 Nm
	M42 / M43 / M43TU / M44	M16 x 1.5	Replace screw	330 Nm
6AZ Hub to crankshaft	N40 / N42 / N45 / N46	M16 x 1.5	Replace screw	300 Nm

TIGHTENING TORQUE SPECIFICATION - VIBRATION DAMPER (2 OF 2)

	Type	Thread	Tightening specification	Measure
1AZ Main bearing bolts (steel bolts 10.9)	S85	M11x115	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			1. Jointing torque	30 Nm
			2. Angle of rotation	130 °
1AZ New main bearing bolts (steel bolts 10.9)	S85	M11x115	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			1. Jointing torque	30 Nm
			2. Angle of rotation	130 °
			3. Release all main bearing bolts.
			4. Jointing torque	30 Nm
			5. Angle of rotation	130 °
			6. Release all main bearing bolts.
			7. Jointing torque	30 Nm
			8. Angle of rotation	130 °
2AZ Fitting bolts (steel bolts 12.9)	S85	M8x94	Threads cleaned and oiled IMPORTANT: Observe tightening specification.
			Jointing torque	15 Nm
			Torque angle	100 °
3AZ Main bearing bolts (steel bolts 10.9)	S85	M8x65	Threads cleaned and oiled
			Jointing torque	5 Nm
			Torque angle	90 °
4AZ Main bearing bolts (steel bolts 10.9)	S85	M8x40	Threads cleaned and oiled
			Jointing torque	5 Nm
			Torque angle	60 °
5AZ Main bearing bolts (steel bolts 8.8)	S85	M6x25	Threads cleaned and oiled
			Jointing torque	15 Nm
6AZ Screw plug to crankcase, front	S85	M22x1.5	Replace seal	50 Nm
7AZ Screw plug to crankcase, main oil gallery	S85	M16x1.5	Replace seal	30 Nm
8AZ Coolant drain plug to crankcase	S85	M10x1	Replace seal	13 Nm
9AZ Screw plug to crankcase, front	S85	M14x1.5	Replace seal	15 Nm

IMPORTANT
Observe tightening specification.

IMPORTANT
Observe tightening specification.

IMPORTANT
Observe tightening specification.

TIGHTENING TORQUE SPECIFICATION - ENGINE BLOCK

	Type	Thread	Tightening specification	Measure
1AZ Connecting rod bolts	S85	M9x1	Replace screws Screws washed and oiled
			1. Jointing torque	6 Nm
			2. Setting torque	20 Nm
			3. Angle of rotation	130 °
			IMPORTANT: release connecting rod bolts.
			4. Jointing torque	6 Nm
			5. Setting torque	20 Nm
			Angle of rotation	130 °
			IMPORTANT: release connecting rod bolts.
			6. Jointing torque	6 Nm
			7. Setting torque	20 Nm
			8. Angle of rotation	130 °

IMPORTANT
Release connecting rod bolts.

IMPORTANT
Release connecting rod bolts.

TIGHTENING TORQUE SPECIFICATION - CONNECTING RODS AND BEARINGS

11 31 CAMSHAFT

	Type	Thread	Tightening specification	Measure
1AZ Chain tensioner	S85	M26x1.5	Insert screws dry	50 Nm
2AZ Bearing pin to crankcase and both cylinder heads (sliding rail)	S85	M6		10 Nm
3AZ Short and long bearing pins to crankcase (chain rail)	S85	M8		15 Nm
4AZ Bearing cap of camshafts to cylinder head	S85	M7x1		13 Nm

TIGHTENING TORQUE SPECIFICATION - CAMSHAFT

11 36 VARIABLE CAMSHAFT CONTROL

	Type	Thread	Tightening specification	Measure
1AZ VANOS to inlet and exhaust camshafts	S85	M12x1	Replace screws Screws oiled at threads and heads
			1. Jointing torque	20 Nm
			2. Angle of rotation	180 °
			3. Important: release screws.
			4. Jointing torque	20 Nm
			5. Angle of rotation	180 °
2AZ Connection, pressure line 1 to pressure line 2	S85	M12x1.5		25 Nm
3AZ Connection, pressure accumulator	S85	M12x1.5	Replace all sealing rings.	25 Nm
4AZ Connection, high-pressure pump	S85	M12x1.5	Replace all sealing rings.	25 Nm
5AZ Connection, pressure line	S85	M12x1.5	Replace all sealing rings.	25 Nm
6AZ Connection, VANOS adjustment unit	S85	M10x1	Replace all sealing rings.	23 Nm
7AZ Gearwheel to VANOS high-pressure pump	S85	M6		7 Nm
8AZ VANOS high-pressure pump to bedplate	S85	M6		10 Nm

TIGHTENING TORQUE SPECIFICATION - VARIABLE CAMSHAFT CONTROL

11 41 OIL PUMP WITH STRAINER AND DRIVE

	Type	Thread	Tightening specification	Measure
1AZ Sprocket wheel to oil pump with serrated toothing	S85	M10x1	Replace nut	25 Nm
1AZ Sprocket wheel to oil pump with dihedron	S85	M10x1	Replace nut	55 Nm
2AZ Oil pump to bedplate	S85	M8		20 Nm
3AZ Oil strainer to oil pump	S85	M6		9 Nm

TIGHTENING TORQUE SPECIFICATION - OIL PUMP WITH STRAINER AND DRIVE

11 42 OIL FILTER AND PIPES

	Type	Thread	Tightening specification	Measure
1AZ Oil filter cap to oil filter housing	S85	Wrench size 24 mm		25 Nm
2AZ Oil drain plug in oil filter cap	S85	M6		10 Nm
3AZ Line to oil filter housing	S85	M8	Replace nut	18 Nm

TIGHTENING TORQUE SPECIFICATION - OIL FILTER AND PIPES

11 53 THERMOSTAT AND CONNECTIONS

	Type	Thread	Measure
1AZ Thermostat housing	All	M6	10 Nm
2AZ Bleeder screw	All	M8	8 Nm

TIGHTENING TORQUE SPECIFICATION - THERMOSTAT AND CONNECTIONS

11 61 AIR INTAKE MANIFOLD

	Type	Thread	Tightening specification	Measure
1AZ Manifold to throttle valves	S85	Hose clamp	Follow installation instructions	1.5 Nm
2AZ Throttle valves to cylinder head (1-5 and 6-10)	S85	M6		10 Nm

TIGHTENING TORQUE SPECIFICATION - AIR INTAKE MANIFOLD

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 SPECIFICATION - INTAKE MANIFOLD

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		12 Nm
			Replace nuts Retighten after 2000 km Slacken nuts by a 1/4 turn
				12 Nm
	M41 / M47 / M47TU / M51 / M57 / M57TU	M8	Replace nuts	20 Nm
	All / others	M8	Replace nuts	23 Nm

TIGHTENING TORQUE SPECIFICATION - EXHAUST MANIFOLD

21 21 CLUTCH TO FLYWHEEL

	Type	Thread	Tightening specification	Measure
1AZ Clutch to flywheel	S85	M6	Observe tightening specification.	10+2 Nm

TIGHTENING TORQUE SPECIFICATION - CLUTCH TO FLYWHEEL

11 78 EMISSIONS CONTROL, CONTROL SENSOR / MONITOR SENSOR

	Type	Thread	Measure
1AZ Control sensor / monitor sensor	S85	M18x1.5	50 Nm
2AZ Exhaust temperature sensor	S85	M14x1.5	25 Nm
3AZ Bracket, oxygen sensor, to transmission	S85	M8x16	20 Nm

TIGHTENING TORQUE SPECIFICATION - EMISSIONS CONTROL, CONTROL SENSOR / MONITOR SENSOR

	Type	Thread	Measure
1AZ Control sensor / monitor sensor	N74	M18x1.5	50 Nm
2AZ Bracket, oxygen sensor, to cylinder head cover	N74	M6	10 Nm