Engine - Tightening Torques - E90-E91 (-08); E85/86/92/E93 (N52): Other — BMW Z4 E85/E86 рестайлинг (2005-2009)

11 11 Engine block (N52)

	Type	Thread	Tightening specification	Measure
1AZ Main bearing bolts (steel bolts 10.9)	N52	M10x100	Replace screws
			Jointing torque	20 Nm
			Torque angle	70 °
2AZ Bedplate Aluminium screws/bolts are marked with blue paint.	N52	M10x27	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	15 Nm
			Torque angle	90 °
3AZ Bedplate Aluminium screws/bolts are marked with blue paint.	N52	M8x37	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	10 Nm
			Torque angle	90 °
4AZ Bedplate Aluminium screws/bolts are marked with blue paint.	N52	M10x41	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	15 Nm
			Torque angle	90 °
5AZ Oil spray nozzles to engine block	N52		Hollow bolt	12 Nm

ENGINE BLOCK TIGHTENING SPECIFICATION

11 12 Cylinder Head with Cover

	Type	Thread	Tightening specification	Measure
1AZ Cylinder head bolts (steel bolt)	N52	M10x125	Replace screws
			Jointing torque	30 Nm
			1st angle of rotation	90 °
			2nd angle of rotation	90 °
			3rd angle of rotation	45 °
2AZ Cylinder head bolts (steel bolt)	N52	M9x95 M9x125	Replace screws
			Jointing torque	30 Nm
			1st angle of rotation	90 °
			2nd angle of rotation	Omitted
			3rd angle of rotation	45 °
3AZ Cylinder head bolts Aluminium screws/bolts are marked with blue paint.	N52	M9x30 M9x70	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail
			Jointing torque	15 Nm
			Torque angle	90 °
4AZ Cylinder head cover to cylinder head Aluminium screws/bolts are marked with blue paint.	N52	M7x33.5 M7x43.5	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail
			Jointing torque	7 Nm
			Torque angle	90 °
5AZ Electric motor to cylinder head cover Aluminium screws/bolts are marked with blue paint	N52	M6x21	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail
			Jointing torque	4 Nm
			Torque angle	90 °

CYLINDER HEAD WITH COVER TIGHTENING SPECIFICATION

	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

CYLINDER HEAD WITH COVER TIGHTENING SPECIFICATION

11 43 Guide tube for oil dipstick (N52)

	Type	Measure
1AZ Oil return pipe to oil sump (plastic)	N52	6 Nm

GUIDE TUBE FOR OIL DIPSTICK TIGHTENING SPECIFICATION

11 13 Oil Pan (N52)

	Type	Thread	Tightening specification	Measure
1AZ Oil drain plug	N52	M12 x 1.5		25 Nm
2AZ Oil pan on engine block Aluminium oil sump Aluminium screws/bolts are marked with blue paint.	N52	M8x26	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	8 Nm
			Torque angle	90 °
3AZ Oil pan on engine block Aluminium oil sump Aluminium screws/bolts are marked with blue paint.	N52	M8x92 M8x112	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	8 Nm
			Torque angle	180 °
4AZ Oil pan on engine block Sheet metal oil sump Aluminium screws/bolts are marked with blue paint.	N52	M8x24	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	8 Nm
			Torque angle	90 °
5AZ Oil deflector to crankcase lower section Aluminium screws/bolts are marked with blue paint.	N52	M6x20	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	4 Nm
			Torque angle	90 °

OIL PAN TIGHTENING SPECIFICATION

11 14 Case Covers (N52)

	Type	Thread	Tightening specification	Measure
1AZ Transmission cover plate to crankcase Aluminium screws/bolts are marked with blue paint.	N52	M6x16	Replace screws Thread repairs exclusively with Al Helicoil Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	4 Nm
			Torque angle	45 °

CASE COVER TIGHTENING SPECIFICATION

11 24 Connecting Rods and Bearings (N52)

	Type	Thread	Tightening specification	Measure
1AZ Connecting rod bolts	N52	M8	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70 °

CONNECTING RODS AND BEARINGS TIGHTENING SPECIFICATION

11 21 Crankshaft and Bearings (S54)

	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

CRANKSHAFT AND BEARINGS TIGHTENING SPECIFICATION

11 21 Crankshaft and Bearings (N52)

	Type	Thread	Tightening specification	Measure
1AZ Torsion damper (hub) to crankshaft (central bolt 12.9)	N52	M16x80	Replace screws Lightly oil screws and threads
			Jointing torque	100 Nm
			Torque angle	360 °

CRANKSHAFT AND BEARINGS TIGHTENING SPECIFICATION

11 22 Flywheel (N52)

	Type	Thread	Tightening specification	Measure
1AZ Flywheel to crankshaft (automatic transmission)	N52	M12x1.5x25.5	Replace screws	130
2AZ DM flywheel to crankshaft (manual transmission)	N52	M12x1.5x 25.35	Replace screw	120

FLYWHEEL TIGHTENING SPECIFICATION

	Type	Thread	Tightening specification	Measure
1AZ Connecting rod bolts	N52	M8	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70 °

CONNECTING RODS AND BEARINGS TIGHTENING SPECIFICATION

11 28 V-ribbed belt with Tension and Deflection Element (N52)

	Type	Thread	Tightening specification	Measure
1AZ Belt tensioner to engine block	N52	M11x65	Replace screw Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	25 Nm
			Torque angle	90 °
2AZ Deflection pulley to alternator	N52	M10x40		40 Nm

V-RIBBED BELT WITH TENSION AND DEFLECTION ELEMENT TIGHTENING SPECIFICATION

11 31 Camshaft (N52)

	Type	Thread	Tightening specification	Measure
1AZ Upper and lower bearing strip of camshaft (steel screw)	N52	M7x70	Insert screws dry
			Jointing torque	8 Nm
			Torque angle	60 °
2AZ Chain drive module to cylinder head	N52	M6x35		8 Nm
3AZ Guide rail to crankcase	N52	M8		20 Nm
4AZ Guide rail to cylinder head	N52	M7		14 Nm
5AZ Chain tensioner to cylinder head	N52	M22 x 1.5	Replace sealing ring	50 Nm
6AZ Screw plug in cylinder head	N52	M18x1.5		25 Nm
7AZ Bearing cap of inlet camshaft	N52	M6x30.5		9 Nm

CAMSHAFT TIGHTENING SPECIFICATION

11 36 Variable Camshaft Control (N52)

	Type	Thread	Tightening specification	Measure
1AZ VANOS with sensor gear on in. & ex. camshafts	N52	M10x94	Replace screw
			Jointing torque	20 Nm
			Torque angle	180 °
2AZ Non-return valve VANOS to cylinder head	N52	M14 x 1.5		13 Nm
3AZ Solenoid valve holder to cylinder head	N52	M6x12		10 Nm

VARIABLE CAMSHAFT CONTROL TIGHTENING SPECIFICATION

11 37 Variable valve gear (N52)

	Type	Thread	Tightening specification	Measure
1AZ Gate to cylinder head	N52	M6x23		10 Nm
2AZ Return spring to cylinder head	N52	M6x20		10 Nm
3AZ Electric servodrive to cylinder head	N52	M6x16		9 Nm
4AZ Electric servodrive to cylinder head cover	N52	M6x16		9 Nm
5AZ Oil spray nozzle to gate	N52	M6x30		10 Nm
6AZ min stop of eccentric shaft to cylinder head	N52	M6		10 Nm
7AZ Eccentric shaft bearing cap to cylinder head (steel screw)	N52	M6x30.5	Replace screws	9 Nm

VARIABLE VALVE GEAR TIGHTENING SPECIFICATION

11 41 Oil Pump with Strainer and Drive (N52)

	Type	Thread	Tightening specification	Measure
1AZ Intake pipe to bedplate	N52	M6x30	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	4 Nm
			Torque angle	100 °
2AZ Oil pump to bedplate	N52	M8x123	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	10 Nm
			Torque angle	180 °
	N52	M8x31	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	10 Nm
			Torque angle	90 °
3AZ Chain module to crankcase and oil pump	N52	M6x16	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	4 Nm
			Torque angle	45 °
4AZ Sprocket to oil pump	N52	M8	Jointing torque	20 Nm
			Torque angle	45 °

OIL PUMP WITH STRAINER AND DRIVE TIGHTENING SPECIFICATION

11 42 Oil Filter and Pipes (N52)

	Type	Thread	Measure
1AZ Oil filter cap to oil filter housing	N52		25 Nm
2AZ Oil filter housing to cylinder head	N52	M8x78 M8x48 M8x28	22 Nm
3AZ Oil/water heat exchanger to oil filter housing	N52	M8x20	16 Nm

OIL FILTER AND PIPES TIGHTENING SPECIFICATION

	Type	Measure
1AZ Oil return pipe to oil sump (plastic)	N52	6 Nm

GUIDE TUBE FOR OIL DIPSTICK TIGHTENING SPECIFICATION

11 51 Water Pump and Drive (N52)

	Type	Thread	Tightening specification	Measure
1AZ Water pump to crankcase	N52	M8x32	Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	10 Nm
			Torque angle	90 °

WATER PUMP AND DRIVE TIGHTENING SPECIFICATION

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

FAN TIGHTENING SPECIFICATION

11 53 Thermostat and Connections

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

THERMOSTAT AND CONNECTIONS TIGHTENING SPECIFICATION

11 53 Thermostat and Connections (N52)

	Type	Thread	Tightening specification	Measure
1AZ Thermostat housing to water pump	N52	M6x25		8 Nm
2AZ Feed lines to crankcase	N52	M6x16		9 Nm
3AZ Feed line to water pump	N52	L42-48	Hose clamp	3 Nm
4AZ Coolant hose to cylinder head	N52	M6x25		8 Nm
5AZ Bracket, coolant hoses, to crankcase Aluminium screws/bolts are marked with blue paint.	N52		Replace screws Thread repairs exclusively with Al Helicoil. Jointing torque and angle of rotation must be observed without fail.
			Jointing torque	4 Nm
			Torque angle	45 °

THERMOSTAT AND CONNECTIONS TIGHTENING SPECIFICATION

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

INTAKE MANIFOLD TIGHTENING SPECIFICATION

11 61 Intake manifold (N52)

	Type	Thread	Tightening specification	Measure
1AZ Intake manifold to cylinder head	N52	M7x50		15 Nm
	N52	AM7	Hexagon nut	15 Nm

INTAKE MANIFOLD TIGHTENING SPECIFICATION

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

EXHAUST MANIFOLD TIGHTENING SPECIFICATION

11 62 Exhaust manifold (N52)

	Type	Thread	Tightening specification	Measure
1AZ Exhaust manifold to cylinder head Coat screw connections with CRC copper paste	N52	M8	Replace nuts	20 Nm

EXHAUST MANIFOLD TIGHTENING SPECIFICATION

11 66 Vacuum pump (N52)

	Type	Thread	Tightening specification	Measure
1AZ Vacuum pump to crankcase	N52	M6x40	Oval-head screws 8.8	8 Nm
	N52	M6x40	Oval-head screws 10.9	10 Nm
2AZ Sprocket wheel to vacuum pump	N52	M10x30	Screw washed and oiled	65 Nm

VACUUM PUMP TIGHTENING SPECIFICATION

11 72 Air pump, lines and control valves (N52)

	Type	Thread	Measure
1AZ Secondary air valve to cylinder head	N52	M6	8 Nm
2AZ Secondary air pump to mounting bracket / pump carrier	N52	M6	8 Nm
3AZ Intake hose / intake line to body	N52	M6	8 Nm

AIR PUMP, LINES AND CONTROL VALVES TIGHTENING SPECIFICATION

11 78 Emissions control, control sensor / monitor sensor (N52)

	Type	Thread	Measure
1AZ Control sensor / monitor sensor	N52	M18 x 1.5	50 Nm
2AZ Bracket, oxygen sensor, to cylinder head	N52	M6x12	8 Nm
3AZ Bracket, oxygen sensor, to transmission	N52	M8x16	20 Nm

EMISSIONS CONTROL, CONTROL SENSOR / MONITOR SENSOR TIGHTENING SPECIFICATION

11 78 Emissions-control, Lambda oxygen sensor

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

EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR TIGHTENING SPECIFICATION

Engine - Tightening Torques - E90-E91 (-08); E85/86/92/E93 (N52): Other BMW Z4 E85/E86 рестайлинг