Engine - Torque Specifications (M42): Other — BMW 3 series E36 (1990-2000)

11 11 Engine block

	Type	Thread	Tightening specification	Measure
1AZ Main bearing screws	M10 / M20 / M30	M10	Replace, wash and oil screws	60 Nm
	M21	M10	Replace, wash and oil screws	65 Nm
	S38 / S14 / M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 US	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°
	M47 / M57	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	M47TU / M57TU	M10	Replace, wash and oil screws
			Jointing torque	22 Nm
			Torque angle	90°
	M67	M12	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	200°
	S54	M10	Replace, wash and oil screws
			Jointing torque	25 Nm
			Torque angle	50°
2AZ Main bearing screws	M70 / S70 / M73	M10	Replace screws Do not wash off screw coating
			Jointing torque	20 Nm
			Torque angle	70°
	M60 / M62	M10/M11	Replace screws Do not wash off screw coating
		M10/M11	Jointing torque	20 Nm
		M10	Torque angle	70°
		M11	Torque angle	100°
	M54 / M56 / M52TU / M52 / with aluminum engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	S52 / M52 / with cast iron engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°

TORQUE SPECIFICATIONS (ENGINE BLOCK)

	Type	Thread	Tightening specification	Measure
3AZ Taper screw mount on main bearing
Screws and spacer bolts	M60 / M62 / M70 / S70 / M73 / S62	M8	Replace screws
			Jointing torque	20 Nm
			Torque angle	45°
	N62 / N62TU / N73	M8		34 Nm
Threaded support sleeves	M70 / M60 / M62 / S70 / M73 / S62			10 Nm
	N62 / N62TU / N73			6 Nm
4AZ Struts/bracing shell	M67	M10.9		66 Nm
		M10		43 Nm
		M8		22 Nm
5AZ Drain plug for coolant in engine block		M14 x 1.5		25 Nm
6AZ Main oil gallery seal plugs		M16 x 1.5		34 Nm
		M18x1.5		40 Nm
	N62 / N62TU / N73	M18x1.5	Insert screw with Loctite	25 Nm
	N40 / N42 / N45 / N46	M16x1.5		36 Nm
Main oil gallery, rear (seal plugs with control valve)	M62 / S62	M18x1		10 Nm
7AZ Oil spray nozzle on engine block		M6		10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)	M73	M8x1		5 Nm
Oil spray nozzle to engine block (banjo bolt)		M8x1		12 Nm
8AZ Pressure holding valve to crankcase (1bar)	S54 / B32			20 Nm

TORQUE SPECIFICATIONS (ENGINE BLOCK)

11 12 Cylinder Head with Cover

	Type	Thread	Tightening specification	Measure
5AZ Cylinder head bolts	M51 / M41	M11	Replace, wash and oil screws
			Jointing torque	80 Nm
			Loosen all bolts 1/2 turn
			Jointing torque	50 Nm
			Torque angle	90°
			Torque angle	90°
			Warm-running time	25 min
			Torque angle	90°
6AZ Cylinder head bolts	M40 / M42 / M43 / M43TU / M44 / M50 / S50 US / S52 / M52 / with cast iron engine block	M10	Replace, wash and oil screws
			Jointing torque	30 Nm
			Torque angle	90°
			Torque angle	90°
Cylinder head bolts	M54 / M56 / M52TU / M52 / with aluminum engine block	M10	Replace, wash and oil screws
			Jointing torque	40 Nm
			Torque angle	90°
			Torque angle	90°
Cylinder head bolts	N40 / N42 / N45 / N46	M8 / M10	Tightening specifications for M8 and M10 screws are identical: Replace, wash and oil screws
			Jointing torque	30 Nm
			Torque angle	90°
			Torque angle	90°

TORQUE SPECIFICATIONS (CYLINDER HEAD WITH COVER)

	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

TORQUE SPECIFICATIONS (CYLINDER HEAD WITH COVER)

11 13 Oil Pan

	Type	Thread	Tightening specification	Measure
1AZ Oil drain plug		M12 x 1.5		25 Nm
		M18 x 1.5 35		Nm
		M22 x 1.5		60 Nm
2AZ Oil pan on engine block		M6 8.8		10 Nm
		M6 10.9		12 Nm
	N40 / N42 / N45 / N46	M8 8.8	Replace screws	30 Nm
		M8 8.8		22 Nm
Oil sump, lower section to upper section		M6 8.8		10 Nm
	N62TU	M8		24 Nm
		M8 8.8		22 Nm
Oil sump bottom section to top section with microencapsulated screws		M6 10.9	Replace screws	12 Nm
Oil sump upper section to crankcase	N62TU	M6		10 Nm
	N62TU	M8		20 Nm

TORQUE SPECIFICATIONS (OIL PAN)

11 13 Oil sump

	Type	Thread	Tightening specification	Measure
1AZ Oil drain plug	N57	M12 x 1.5	Replace sealing ring	25 Nm
2AZ Oil sump to crankcase	N57	M8x 30 M8x110	Replace seal	25 Nm

TORQUE SPECIFICATIONS (OIL SUMP)

11 14 Case Covers

	Type	Thread	Measure
1AZ Timing case and timing case cover top and bottom		M6	10 Nm
		M7	15 Nm
		M8	22 Nm
		M10	47 Nm
2AZ End cover, front/rear, to engine block		M6	10 Nm
		M8	22 Nm
3AZ Bearing pin to timing case cover	M51 / M41 / M47	M42x1.5	65 Nm
4AZ Screw plug or connection piece to timing case cover Screw plug to timing case cover	M51 / M41 / M47	M20x1.5	30 Nm
Screw plug to timing case cover	M57 / M47TU / M57TU	M30x1	70 Nm
Screw plug to timing case cover	M57 / M47TU	M40x1.5	30 Nm
5AZ End cover, top/rear (water jacket), to engine block	N62TU / N73	M6	10 Nm
6AZ Lower timing case cover to crankcase	N62TU	M8	20 Nm
7AZ Upper timing case to cylinder head	N62TU	M6	10 Nm
8AZ End cover, rear, to crankcase	N62TU	M6	10 Nm

TORQUE SPECIFICATIONS (CASE COVERS)

	Type	Thread	Tightening specification	Measure
1AZ Main bearing screws	M10 / M20 / M30	M10	Replace, wash and oil screws	60 Nm
	M21	M10	Replace, wash and oil screws	65 Nm
	S38 / S14 / M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 US	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°
	M47 / M57	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	M47TU / M57TU	M10	Replace, wash and oil screws
			Jointing torque	22 Nm
			Torque angle	90°
	M67	M12	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	200°
	S54	M10	Replace, wash and oil screws
			Jointing torque	25 Nm
			Torque angle	50°
2AZ Main bearing screws	M70 / S70 / M73	M10	Replace screws Do not wash off screw coating
			Jointing torque	20 Nm
			Torque angle	70°
	M60 / M62	M10/M11	Replace screws Do not wash off screw coating
		M10/M11	Jointing torque	20 Nm
		M10	Torque angle	70°
		M11	Torque angle	100°
	M54 / M56 / M52TU / M52 / with aluminum engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	S52 / M52 / with cast iron engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°

TORQUE SPECIFICATIONS (ENGINE BLOCK)

	Type	Thread	Tightening specification	Measure
3AZ Taper screw mount on main bearing
Screws and spacer bolts	M60 / M62 / M70 / S70 / M73 / S62	M8	Replace screws
			Jointing torque	20 Nm
			Torque angle	45°
	N62 / N62TU / N73	M8		34 Nm
Threaded support sleeves	M70 / M60 / M62 / S70 / M73 / S62			10 Nm
	N62 / N62TU / N73			6 Nm
4AZ Struts/bracing shell	M67	M10.9		66 Nm
		M10		43 Nm
		M8		22 Nm
5AZ Drain plug for coolant in engine block		M14 x 1.5		25 Nm
6AZ Main oil gallery seal plugs	M16 x 1.5			34 Nm
		M18x1.5		40 Nm
	N62 / N62TU / N73	M18x1.5	Insert screw with Loctite	25 Nm
	N40 / N42 / N45 / N46	M16x1.5		36 Nm
Main oil gallery, rear (seal plugs with control valve)	M62 / S62	M18x1		10 Nm
7AZ Oil spray nozzle on engine block		M6		10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)	M73	M8x1		5 Nm
Oil spray nozzle to engine block (banjo bolt)		M8x1		12 Nm
8AZ Pressure holding valve to crankcase (1bar)	S54 / B32			20 Nm

TORQUE SPECIFICATIONS (ENGINE BLOCK)

11 24 Connecting Rods and Bearings

	Type	Tightening specification	Measure
1AZ Connecting rod bolts	M10 / M30	Replace, wash and oil screws	55 Nm
	M20 / M21 / M40 / M41 / M42 / M43 / M43TU / M44 / M47 / M47TU / M50 / M51 / M52 / M52TU / M54 / M56 / M57 / M57TU / S52 / S50 US / M70 / S70 / M73 / N40 / N42 / N45 / N46 / N62 / N73 / N62S / N62TU	Replace, wash and oil screws
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	70°
	M60 / M62	Replace, wash and oil screws
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	80°
	M67	Replace screws, do not wash off screw coating
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	85°

TORQUE SPECIFICATIONS (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

TORQUE SPECIFICATIONS (CRANKSHAFT AND BEARINGS)

11 22 Flywheel

	Type	Thread	Tightening specification	Measure
1AZ Flywheel to crankshaft
Manual transmission flywheel to crankshaft	S62 / M60/1 / M60/2 / M62		Do not install with screw retaining compound. Bolts are a component part of the flywheel. Screw threads oiled.	105 Nm
Manual transmission flywheel to crankshaft	M40 / M42 / M43 / M43TU / M44 / M70 / S70 / M73 / M57TU		Replace screws	120 Nm
	M57 / M47 / M47TU		Replace screws	105 Nm
Automatic flywheel to crankshaft	N62 / N62TU / N73		Replace screws	105 Nm
Automatic flywheel to crankshaft	M57 / M57TU / M47 / M47TU / M67 / M67TU	Replace screws		121 Nm
Manual transmission flywheel to crankshaft	N62		Do not install with screw retaining compound. Bolts are a component part of the flywheel. Screw threads oiled.	120 Nm

TORQUE SPECIFICATIONS (FLYWHEEL)

	Type	Thread	Tightening specification	Measure
1AZ Main bearing screws	M10 / M20 / M30	M10	Replace, wash and oil screws	60 Nm
	M21	M10	Replace, wash and oil screws	65 Nm
	S38 / S14 / M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 US	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°
	M47 / M57	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	M47TU / M57TU	M10	Replace, wash and oil screws
			Jointing torque	22 Nm
			Torque angle	90°
	M67	M12	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	200°
	S54	M10	Replace, wash and oil screws
			Jointing torque	25 Nm
			Torque angle	50°
2AZ Main bearing screws	M70 / S70 / M73	M10	Replace screws Do not wash off screw coating
			Jointing torque	20 Nm
			Torque angle	70°
	M60 / M62	M10/M11	Replace screws Do not wash off screw coating
		M10/M11	Jointing torque	20 Nm
		M10	Torque angle	70°
		M11	Torque angle	100°
	M54 / M56 / M52TU / M52 / with aluminum engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	70°
	S52 / M52 / with cast iron engine block	M10	Replace, wash and oil screws
			Jointing torque	20 Nm
			Torque angle	50°

TORQUE SPECIFICATIONS (ENGINE BLOCK)

	Type	Thread	Tightening specification	Measure
3AZ Taper screw mount on main bearing
Screws and spacer bolts	M60 / M62 / M70 / S70 / M73 / S62	M8	Replace screws
			Jointing torque	20 Nm
			Torque angle	45°
	N62 / N62TU / N73	M8		34 Nm
Threaded support sleeves	M70 / M60 / M62 / S70 / M73 / S62			10 Nm
		N62 / N62TU / N73		6 Nm
4AZ Struts/bracing shell	M67	M10.9		66 Nm
		M10		43 Nm
		M8		22 Nm
5AZ Drain plug for coolant in engine block		M14 x 1.5		25 Nm
6AZ Main oil gallery seal plugs		M16 x 1.5		34 Nm
		M18x1.5		40 Nm
	N62 / N62TU / N73	M18x1.5	Insert screw with Loctite	25 Nm
	N40 / N42 / N45 / N46	M16x1.5		36 Nm
Main oil gallery, rear (seal plugs with control valve)	M62 / S62	M18x1		10 Nm
7AZ Oil spray nozzle on engine block		M6		10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)	M73	M8x1		5 Nm
Oil spray nozzle to engine block (banjo bolt)		M8x1		12 Nm
8AZ Pressure holding valve to crankcase (1bar)	S54 / B32			20 Nm

TORQUE SPECIFICATIONS (ENGINE BLOCK)

	Type	Tightening specification	Measure
1AZ Connecting rod bolts	M10 / M30	Replace, wash and oil screws	55 Nm
	M20 / M21 / M40 / M41 / M42 / M43 / M43TU / M44 / M47 / M47TU / M50 / M51 / M52 / M52TU / M54 / M56 / M57 / M57TU / S52 / S50 US / M70 / S70 / M73 / N40 / N42 / N45 / N46 / N62 / N73 / N62S / N62TU	Replace, wash and oil screws
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	70°
	M60 / M62	Replace, wash and oil screws
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	80°
	M67	Replace screws, do not wash off screw coating
		Application torque	5 Nm
		Jointing torque	20 Nm
		Torque angle	85°

TORQUE SPECIFICATIONS (CONNECTING RODS AND BEARINGS)

11 31 Camshaft

	Type	Thread	Tightening specification	Measure
1AZ Camshaft bearing cap		M6		10 Nm
		M7		14 Nm
		M7- 8.8		15 Nm
		M8		20 Nm
2AZ Sprocket to camshaft	M20 / M21 / M40	M10		65 Nm
3AZ Sprocket to camshaft flange	M60 / M62	M6		15 Nm
	M6 10 Nm M50 / M52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOS	M7
			Application torque	5 Nm
			Jointing torque	20 Nm
		M7		15 Nm
4AZ Sprocket to camshaft	M51 / M41 / M47 / M57	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	35°
	M47TU / M57TU	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	50°
	M67	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	90°
5AZ Toothed shaft to inlet camshaft	M52 / S52 / S50 US / M50 / VANOS	M14 x 1.5
			Jointing torque	40 Nm
			Torque angle	60°

TORQUE SPECIFICATIONS (CAMSHAFT)

	Type	Thread	Tightening specification	Measure
1AZ Camshaft bearing cap		M6		10 Nm
		M7		14 Nm
			M7- 8.8	15 Nm
		M8		20 Nm
2AZ Sprocket to camshaft	M20 / M21 / M40	M10		65 Nm
3AZ Sprocket to camshaft flange	M60 / M62	M6		15 Nm
	M6 10 Nm M50 / M52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOS	M7
			Application torque	5 Nm
			Jointing torque	20 Nm
		M7		15 Nm
4AZ Sprocket to camshaft	M51 / M41 / M47 / M57	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	35°
	M47TU / M57TU	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	50°
	M67	M12 x 1.5	Replace screws
			Jointing torque	20 Nm
			Torque angle	90°
5AZ Toothed shaft to inlet camshaft	M52 / S52 / S50 US / M50 / VANOS	M14 x 1.5
			Jointing torque	40 Nm
			Torque angle	60°

TORQUE SPECIFICATIONS (CAMSHAFT)

11 42 Oil Filter and Pipes

	Thread	Measure
1AZ Oil filter (one-way cartridge) (tightening torque by hand as specified on easy-change filter)		Nm
2AZ Full flow oil filter (cover)	M8	22 Nm
	M10	33 Nm
	M12	33 Nm
Screwed-on cover		25 Nm
3AZ Oil filter housing and lines on crankcase	M8	22 Nm
	M20 x 1.5	40 Nm

TORQUE SPECIFICATIONS (OIL FILTER AND LINES)

	Type	Thread	Measure
4AZ Oil filter drain plug	M21 / S38	Hollow bolt	20 Nm
	M21	Full length screw in aluminum	10 Nm
	M21	Full length screw in threaded insert	23 Nm
5AZ Oil drain line to oil filter and upper oil sump section	M60/1 / M60/2 / M62 / M70 / S70 / M73 / S62	Banjo bolt M14x1.5	30 Nm
6AZ Oil line to bearing points and camshaft lubrication		M6	10 Nm
7AZ Oil line for camshaft lubrication on cylinder head		Banjo bolt M8x1	10 Nm
	N40 / N42 / N45 / N46	Banjo bolt M7x1	10 Nm
		M5	5 Nm
8AZ Oil drain line from oil separator to upper oil sump section	E53 / M62	Banjo bolt M12 x 1.5	25 Nm

TORQUE SPECIFICATIONS (OIL FILTER AND PIPES)

11 65 Turbocharger and Control

	Type	Thread	Measure
1AZ Exhaust turbocharger H.P. to exhaust manifold	N57S	M8x22	25 Nm
2AZ Exhaust turbocharger L.P. to exhaust manifold	N57S	M10x25	40 Nm
3AZ Compressor bypass to low-pressure stage	N57S	M8	8 Nm

TORQUE SPECIFICATIONS (TURBOCHARGER AND CONTROL)

11 51 Water Pump and Drive

	Type	Thread	Measure
1AZ Water pump to crankcase		M6	10 Nm
		M7	15 Nm
		M8	22 Nm
2AZ Water pump to power steering pump	N40 / N42 / N45 / N46	M8 10.9	32 Nm

TORQUE SPECIFICATIONS (WATER PUMP AND DRIVE)

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

TORQUE SPECIFICATIONS (FAN)

11 53 Thermostat and Connections

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

TORQUE SPECIFICATIONS (THERMOSTAT AND CONNECTIONS)

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

TORQUE SPECIFICATIONS (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 stay bolts 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

TORQUE SPECIFICATIONS (EXHAUST MANIFOLD)

	Type	Thread	Measure
1AZ Exhaust turbocharger H.P. to exhaust manifold	N57S	M8x22	25 Nm
2AZ Exhaust turbocharger L.P. to exhaust manifold	N57S	M10x25	40 Nm
3AZ Compressor bypass to low-pressure stage	N57S	M8	8 Nm

TORQUE SPECIFICATIONS (TURBOCHARGER AND CONTROL)

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

TORQUE SPECIFICATIONS (EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR)

Engine - Torque Specifications (M42): Other BMW 3 series E36

11 11 Engine block

11 12 Cylinder Head with Cover

11 13 Oil Pan

11 13 Oil sump

11 14 Case Covers

11 24 Connecting Rods and Bearings

11 21 Crankshaft and Bearings

11 22 Flywheel

11 31 Camshaft

11 42 Oil Filter and Pipes

11 65 Turbocharger and Control

11 51 Water Pump and Drive

11 52 Fan

11 53 Thermostat and Connections

11 61 Intake manifold

11 62 Exhaust manifold

11 78 Emissions-control, Lambda oxygen sensor

More articles — Engine - Torque Specifications (M42)

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