Contents Wiring diagrams Section: Mechanical All sections

Engine - Tightening Torques: Other BMW 7 series E65/E66

Mechanical ~215 words

11 11 Engine block

—TypeThreadTightening specificationMeasure
1AZ Main bearing screwsM10/M20/M30M10Replace, wash and oil screws60 Nm
—M21M10Replace, wash and oil screws65 Nm
—S38/S14/ M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 USM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°
—M47 / M57M10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—M47TU / M57TUM10Replace, wash and oil screws—
———Jointing torque22 Nm
———Torque angle90°
—M67M12Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle200°
—S54M10Replace, wash and oil screws—
———Jointing torque25 Nm
———Torque angle50°
2AZ Main bearing screwsM70 / S70 / M73M10Replace screws Do not wash off screw coating—
———Jointing torque20 Nm
———Torque angle70°
—M60 / M62M10/M11Replace screws Do not wash off screw coating—
——M10/M11Jointing torque20 Nm
——M10Torque angle70°
——M11Torque angle100°
—M54 / M56 / M52TU / M52 / with aluminum engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—S52/M52/with cast iron engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°

ENGINE BLOCK TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
3AZ Taper screw mount on main bearing————
Screws and spacer boltsM60 / M62 / M70 / S70 / M73 / S62M8Replace screws—
———Jointing torque20 Nm
———Torque angle45°
—N62 / N73M8—34 Nm
Threaded support sleevesM70 / M60 / M62 / S70 / M73 / S62——10 Nm
—N62 / N73——6Nm
4AZ Struts/bracing shellM67M10.9—66 Nm
—All othersM10—43 Nm
—AllM8—22 Nm
5AZ Drain plug for coolant in engine blockAllM14x1.5—25 Nm
6AZ Main oil gallery seal plugsAllM16x1.5—34 Nm
—AllM 18x1.5—40 Nm
—N62 / N73M 18x1.5Insert screw with Loctite25 Nm
—N40 / N42 / N45 / N46M 16x1.5—36 Nm
Main oil gallery, rear (seal plugs with control valve)M62 / S62M18 x 1—10 Nm
7AZ Oil spray nozzle on engine blockAllM6—10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)M73M8x1—5 Nm
Oil spray nozzle to engine block (banjo bolt)All othersM8x1—12 Nm
8AZ Pressure holding valve to crankcase (1bar)S54 / B32——20 Nm

ENGINE BLOCK TIGHTENING SPECIFICATION

11 12 Cylinder Head with Cover

—TypeThreadTightening specificationMeasure
7AZ Cylinder head boltsM70 / S70 / M73M10Replace screws Do not wash off coating—
———Jointing torque30 Nm
———Torque angle60°
———Torque angle60°
8AZ Cylinder head boltsM60 / M62 / S62M10Replace screws Do not wash off coating—
———Jointing torque30 Nm
———Torque angle80°
———Torque angle80°
—N62 / N73M10Replace screws Do not wash off coating—
———Jointing torque30 Nm
———Torque angle90°
———Torque angle90°

CYLINDER HEAD WITH COVER TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
11AZ Cylinder head coverAllM6—10 Nm
——AllM715 Nm
——M21M815 Nm
12AZ Oil trap to cylinder head coverM21M8—17 Nm
13AZ Timing case to cylinder headAllM7—15 Nm
——AllM820 Nm
14AZ Plug for oil channel (microencapsulated)M47 / M57M12x1.5—20 Nm
15AZ Vent plugs to cylinder head (coolant)M67——2Nm

CYLINDER HEAD WITH COVER TIGHTENING SPECIFICATION

11 13 Oil Pan

—TypeThreadTightening specificationMeasure
1AZ Oil drain plugAllM12x1.5—25 Nm
—AllM18 x 1.5—35 Nm
—AllM22 x 1.5—60 Nm
2AZ Oil pan on engine blockAllM6 8.8—10 Nm
—AllM6 10.9—12 Nm
—N40 / N42 / N45 / N46M8 8.8Replace screws30 Nm
—All othersM8 8.8—22 Nm
Oil sump, lower section to upper sectionAllM6 8.8—10 Nm
—AllM8 8.8—22 Nm
Oil sump bottom section to top section with microencapsulated screwsAllM6 10.9Replace screws12 Nm

OIL PAN TIGHTENING SPECIFICATION

11 14 Case Covers

—TypeThreadTightening specificationMeasure
1AZ Timing case and timing case cover top and bottomAllM6—10 Nm
—AllM7—15 Nm
—AllM8—22 Nm
—AllM10—47 Nm
2AZ End cover, front/rear, to engine blockAllM6—10 Nm
—AllM8—22 Nm
3AZ Bearing pin to timing case coverM51 / M41 / M47M42x1.5—65 Nm
4AZ Screw plug or connection piece to timing case cover Screw plug to timing case coverM51 / M41 / M47M20x1.5—30 Nm
Screw plug to timing case coverM57 / M47TU / M57TUM30x1—70 Nm
Screw plug to timing case coverM57 / M47TUM40x1.5—30 Nm
5AZ End cover, top/rear (water jacket), to engine blockN73M6—10 Nm

CASE COVERS TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
1AZ Main bearing screwsM10/M20/M30M10Replace, wash and oil screws60 Nm
—M21M10Replace, wash and oil screws65 Nm
—S38/S14/ M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 USM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°
—M47 / M57M10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—M47TU / M57TUM10Replace, wash and oil screws—
———Jointing torque22 Nm
———Torque angle90°
—M67M12Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle200°
—S54M10Replace, wash and oil screws—
———Jointing torque25 Nm
———Torque angle50°
2AZ Main bearing screwsM70 / S70 / M73M10Replace screws Do not wash off screw coating—
———Jointing torque20 Nm
———Torque angle70°
—M60 / M62M10/M11Replace screws Do not wash off screw coating—
——M10/M11Jointing torque20 Nm
—M10Torque angle70°
——M11Torque angle100°
—M54 / M56 / M52TU / M52 / with aluminum engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—S52/M52/with cast iron engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°

ENGINE BLOCK TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
3AZ Taper screw mount on main bearing————
Screws and spacer boltsM60 / M62 / M70 / S70 / M73 / S62M8Replace screws—
———Jointing torque20 Nm
———Torque angle45°
—N62 / N73M8—34 Nm
Threaded support sleevesM70 / M60 / M62 / S70 / M73 / S62——10 Nm
—N62 / N73——6Nm
4AZ Struts/bracing shellM67M10.9—66 Nm
—All othersM10—43 Nm
—AllM8—22 Nm
5AZ Drain plug for coolant in engine blockAllM14x1.5—25 Nm
6AZ Main oil gallery seal plugsAllM16x1.5—34 Nm
—AllM 18x1.5—40 Nm
—N62 / N73M 18x1.5Insert screw with Loctite25 Nm
—N40 / N42 / N45 / N46M 16x1.5—36 Nm
Main oil gallery, rear (seal plugs with control valve)M62 / S62M18 x 1—10 Nm
7AZ Oil spray nozzle on engine blockAllM6—10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)M73M8x1—5 Nm
Oil spray nozzle to engine block (banjo bolt)All othersM8x1—12 Nm
8AZ Pressure holding valve to crankcase (1bar)S54 / B32——20 Nm

ENGINE BLOCK TIGHTENING SPECIFICATION

11 24 Connecting Rods and Bearings

—TypeThreadTightening specificationMeasure
1AZ Connecting rod boltsM10/M30—Replace, wash and oil screws55 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——Replace, wash and oil screws
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle70°
—M60 / M62—Replace, wash and oil screws—
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle80°
—M67—Replace screws, do not wash off screw coating—
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle85°

CONNECTING RODS AND BEARINGS SPECIFICATION

11 21 Crankshaft and Bearings

—TypeThreadTightening specificationMeasure
1AZ Increment wheel on crankshaftS54M5 10.9Replace screws—
———Jointing torque5.0 Nm
———Torque angle45°
Increment wheel on crankshaftAll othersM5 10.9Replace screws13 Nm
Increment wheel on crankshaftAll othersM5 8.8Replace screws5.5 Nm

CRANKSHAFT AND BEARINGS TIGHTENING SPECIFICATION

11 22 Flywheel

—TypeThreadTightening specificationMeasure
1AZ Flywheel to crankshaft————
Manual transmission flywheel to crankshaftS62 / 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 crankshaftM40 / M42 / M43 / M43TU / M44 / M70 / S70 / M73/ M57TU—Replace screws120 Nm
—All others—Replace screws105 Nm
Automatic transmission flywheel to crankshaftN62 / N73—Replace screws105 Nm
—All others—Replace screws120 Nm
Manual transmission flywheel to crankshaftN62—Do not install with screw retaining compound. Bolts are a component part of the flywheel. Screw threads oiled.120 Nm

FLYWHEEL TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
1AZ Main bearing screwsM10/M20/M30M10Replace, wash and oil screws60 Nm
—M21M10Replace, wash and oil screws65 Nm
—S38/S14/ M40 / M42 / M43 / M43TU / M44 / M50 / M41 / M51 / S50 / S50 USM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°
—M47 / M57M10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—M47TU / M57TUM10Replace, wash and oil screws—
———Jointing torque22 Nm
———Torque angle90°
—M67M12Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle200°
—S54M10Replace, wash and oil screws—
———Jointing torque25 Nm
———Torque angle50°
2AZ Main bearing screwsM70 / S70 / M73M10Replace screws Do not wash off screw coating—
———Jointing torque20 Nm
———Torque angle70°
—M60 / M62M10/M11Replace screws Do not wash off screw coating—
——M10/M11Jointing torque20 Nm
——M10Torque angle70°
——M11Torque angle100°
—M54 / M56 / M52TU / M52 / with aluminum engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle70°
—S52/M52/with cast iron engine blockM10Replace, wash and oil screws—
———Jointing torque20 Nm
———Torque angle50°

ENGINE BLOCK TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
3AZ Taper screw mount on main bearing————
Screws and spacer boltsM60 / M62 / M70 / S70 / M73 / S62M8Replace screws—
———Jointing torque20 Nm
———Torque angle45°
—N62 / N73M8—34 Nm
Threaded support sleevesM70 / M60 / M62 / S70 / M73 / S62——10 Nm
—N62 / N73——6Nm
4AZ Struts/bracing shellM67M10.9—66 Nm
—All othersM10—43 Nm
—AllM8—22 Nm
5AZ Drain plug for coolant in engine blockAllM14x1.5—25 Nm
6AZ Main oil gallery seal plugsAllM16x1.5—34 Nm
—AllM 18x1.5—40 Nm
—N62 / N73M 18x1.5Insert screw with Loctite25 Nm
—N40 / N42 / N45 / N46M 16x1.5—36 Nm
Main oil gallery, rear (seal plugs with control valve)M62 / S62M18 x 1—10 Nm
7AZ Oil spray nozzle on engine blockAllM6—10 Nm
Oil spray nozzle screwed into bearing seat (coat thread with Loctite 243)M73M8x1—5 Nm
Oil spray nozzle to engine block (banjo bolt)All othersM8x1—12 Nm
8AZ Pressure holding valve to crankcase (1bar)S54 / B32——20 Nm

ENGINE BLOCK TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
1AZ Connecting rod boltsM10/M30—Replace, wash and oil screws55 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—Replace, wash and oil screws—
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle70°
—M60 / M62—Replace, wash and oil screws—
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle80°
—M67—Replace screws, do not wash off screw coating—
———Application torque5 Nm
———Jointing torque20 Nm
———Torque angle85°

CONNECTING RODS AND BEARINGS TIGHTENING SPECIFICATION

11 31 Camshaft

—TypeThreadTightening specificationMeasure
1AZ Camshaft bearing capAllM6—10 Nm
—AllM7—14 Nm
—AllM8—20 Nm
2AZ Sprocket to camshaftM20 / M21 / M40M10—65 Nm
3AZ Sprocket to camshaft flangeM60 / M62M6—15 Nm
—All / othersM6—10 Nm
—M50 / M52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOSM7——
———Application torque5 Nm
———Jointing torque20 Nm
—All / othersM7—15 Nm
4AZ Sprocket to camshaftM51 / M41 / M47 / M57M12x1.5Replace screws—
———Jointing torque20 Nm
———Torque angle35°
—M47TU / M57TUM12x1.5Replace screws—
———Jointing torque20 Nm
———Torque angle50°
—M67M12x1.5Replace screws—
———Jointing torque20 Nm
———Torque angle90°
5AZ Toothed shaft to inlet camshaftM52 / S52 / S50 US / M50 / VANOSM14x1.5——
———Jointing torque40 Nm
———Torque angle60°

CAMSHAFT TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
6AZ Flange to camshaftM30——145 Nm
7AZ Screw plug for chain tensionerM50 / S50 US / S62M22x1.5—50 Nm
—All / othersM22x1.5—40 Nm
8AZ Cylinder for chain tensioner plungerM67M22 x 1.5—45 Nm
—N40 / N42 / N45 / N46 / N62 / N73M22 x 1.5—65 Nm
—M50 / M52 / M52TU / M54 / M56 / S52 / S50 USM26 x 1.5—70 Nm
—All / othersM26 x 1.5—50 Nm
9AZ Bearing flange on engine blockM60M6—13 Nm
10AZ Reversing rail on engine blockM62 / S62M6/M7—14 Nm
11AZ Screw-in pin on camshaftAllM7—20 Nm
Nut on screw-in pinAllM6—10 Nm
12AZ Bearing pin for sliding and tensioning railsM41 / M47 / M47TU / M51 / M57 / M57TUM16 x 1.5—20 Nm
—M67M16x1.5—26 Nm
13AZ Signal disk to camshaftS62 / S54M16 x 1.5—50 Nm
14AZ Sensor gear to camshaftN62 / N73M14 x 1.5—30 Nm

CAMSHAFT TIGHTENING SPECIFICATION

11 36 Variable Camshaft Control

—TypeThreadTightening specificationMeasure
1AZ 4/2-way valve/solenoid valve to VANOS housingM52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOS——30 Nm
2AZ Banjo bolt to VANOS adjustment unitM52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOSM14x1.5—32 Nm
3AZ Screw plug to VANOS adjustment unitM52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOSM22x1.5—50 Nm
4AZ Left-hand thread: Set screw for hydraulic piston to toothed shaftM52TU / M54 / M56M6—10 Nm
5AZ Hydraulic line for VANOS to oil filter equipment carrierM52 / M52TU / M54 / M56 / S52 / S50 US / M50 / VANOS——32 Nm
6AZ Collar nut on spline shaftS50M6—9Nm
7AZ Cover to VANOS adjustment unit (hydraulic piston inlet side)S50M5—5 Nm
8AZ Filter screw to VANOS adjustment unitS50M10x1—12 Nm
9AZ Pressure line to VANOS adjustment unitS62 / S54M10x1—13 Nm
Pressure line to pressure accumulator and VANOS adjustment unitS50M12x1—20 Nm
10AZ Cover for solenoid valve to VANOS adjustment unitS50 / B30M5 8.8—6Nm
—S50 / B32M5 10.9—8Nm
—S62M7 10.9—19 Nm
11AZ Cover to VANOS adjustment unit (exhaust side)S54 / S50 / B32M6 10.9—13 Nm
12AZ Solenoid valve on distributorM62 / VANOSM27x1.5—25 Nm
13AZ Left-hand thread: Exhaust chain wheel to exhaust camshaftM62 / VANOSM12x1.5—125 Nm
14AZ Left-hand thread: VANOS adjustment unit to inlet camshaftM62 / VANOSM12x1.5—110 Nm
15AZ Left-hand thread: Nut of sensor gear screw fittingM62 / VANOSM 18x1.5—40 Nm
16AZ Adjustment unit to exhaust or inlet camshaftN40 / N42 / N45 / N46M10x1Replace screws—
———Jointing torque20 Nm
———Torque angle90°
———Torque angle90°
—N62 / N73M10x1Replace screws—
———Torque80 Nm
17AZ Non-return valveN62 / N73M 14x1.5—20 Nm

VARIABLE CAMSHAFT CONTROL TIGHTENING SPECIFICATION

11 41 Oil Pump with Strainer and Drive

—TypeThreadTightening specificationMeasure
1AZ Screw plug for pressure relief valveM10/M30——40 Nm
—M20——30 Nm
2AZ Oil pump to crankcaseN62 / N73M8 10.9—34 Nm
—All othersM8—23 Nm
3AZ Oil pump coverAllM6—10 Nm
4AZ Sprocket to oil pumpAllM6—10 Nm
—N40 / N42 / N45 / N46M10x1—30 Nm
—All othersM10x1—25 Nm
—AllM10—45 Nm
5AZ Oil pump to balancing shaft housingM47TUM6 10.9—14 Nm
—M47TUM7 10.9—25 Nm

OIL PUMP WITH STRAINER AND DRIVE TIGHTENING SPECIFICATION

11 42 Oil Filter and Pipes

—TypeThreadTightening specificationMeasure
1AZ Oil filter (one-way cartridge) (tightening torque by hand as specified on easy-change filter)All——Nm
2AZ Full flow oil filter (cover)AllM8—22 Nm
—AllM10—33 Nm
—AllM12—33 Nm
Screwed-on coverAll——25 Nm
3AZ Oil filter housing and lines on crankcaseAllM8—22 Nm
—AllM20x1.5—40 Nm

OIL FILTER AND PIPES TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
4AZ Oil filter drain plugM21 / S38Hollow bolt—20 Nm
—M21Full length screw in aluminum—10 Nm
—M21Full length screw in threaded insert—23 Nm
5AZ Oil drain line to oil filter and upper oil sump sectionM60/1 / M60/2 / M62 / M70 / S70 / M73 / S62Banjo bolt M 14x1.5—30 Nm
6AZ Oil line to bearing points and camshaft lubricationAllM6—10 Nm
7AZ Oil line for camshaft lubrication on cylinder headAllBanjo bolt M8x1—10 Nm
—N40 / N42 / N45 / N46Banjo bolt M7x1—10 Nm
—AllM5—5 Nm
8AZ Oil drain line from oil separator to upper oil sump sectionE53 / M62Banjo bolt M 12x1.5—25 Nm

OIL FILTER AND PIPES TIGHTENING SPECIFICATION

—TypeThreadTightening specificationMeasure
8AZ Oil cooler oil pipes to oil filter housingAllM8—22 Nm
9AZ Oil pipes to turbochargerAllM8—22 Nm
10AZ Oil lines from turbocharger to engine block Hollow boltAllM16x1.5—40 Nm
11AZ Oil supply pipe to turbocharger————
Hollow boltAll——25 Nm
Coupling nutAll——30 Nm
Oil return line to turbocharger and cylinder crankcase (hose clamp)M47TU / M57 / M57TU / M67——3Nm

OIL FILTER AND PIPES TIGHTENING SPECIFICATION

11 51 Water Pump and Drive

—TypeThreadTightening specificationMeasure
1AZ Water pump to crankcaseAllM6—10 Nm
—AllM7—15 Nm
—AllM8—22 Nm
2AZ Water pump to power steering pumpN40 / N42 / N45 / N46M8 10.9—32 Nm

WATER PUMP AND DRIVE TIGHTENING SPECIFICATION

11 52 Fan

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

FAN TIGHTENING SPECIFICATION

11 53 Thermostat and Connections

—TypeThreadTightening specificationMeasure
1AZ Thermostat housingAllM6—10 Nm
2AZ Bleeder screwAllM8—8 Nm

THERMOSTAT AND CONNECTIONS TIGHTENING SPECIFICATION

11 61 Intake manifold

—TypeThreadTightening specificationMeasure
1AZ Intake manifold on cylinder headAllM8—22 Nm
—AllM7—15 Nm
—AllM6—10 Nm
2AZ Soundproofing hood to holderM60/1 / M60/2 / M62M6—8Nm

INTAKE MANIFOLD TIGHTENING SPECIFICATION

11 62 Exhaust manifold

—TypeThreadTightening specificationMeasure
1AZ Exhaust manifold to cylinder head Coat screw connections with CRC copper pasteAllM6Replace nuts10 Nm
—M50 / M52 / M52TU / M54 / M56 / S52 / S50 USM7Replace nuts20 Nm
—All / othersM7Replace nuts15 Nm
—M10M8Upper row of staybolts installed with bolt cement—
————23 Nm
—M21M8—12 Nm
———Replace nuts Retighten after 2000 km Slacken nuts by a 1/4 turn—
————12 Nm
—M41 / M47 / M47TU / M51 / M57 / M57TUM8Replace nuts20 Nm
—All / othersM8Replace nuts23 Nm

EXHAUST MANIFOLD TIGHTENING SPECIFICATION

11 78 Emissions-control, Lambda oxygen sensor

—TypeThreadTightening specificationMeasure
1AZ Oxygen control sensor; oxygen monitor sensorAllM18 x 1.5—50 Nm

EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR TIGHTENING SPECIFICATION