2002 Audi A8 Quattro engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system


Induction-pipe flap control unit	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Intake manifold	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


Bottom	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Top	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


Bottom	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Top	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


All other modifications	23.6 lbf⋅ft23.6 lbf⋅ft32 N⋅m

expand_moreAuxiliary drive belt tensioner


Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m
Audi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAuxiliary drive belt tensioner


All other modifications	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Property class 10.9


Air-conditioning compressor	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAir-conditioning compressor bracket


All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


Air-conditioning compressor pressure line	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Alternator	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_morePower steering pump bracket


All Audi gasoline V8 3.7 L BFL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V8 4.2 L BFM engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	23.6 lbf⋅ft23.6 lbf⋅ft32 N⋅m

expand_moreServo pump pulley


All other modifications	16.96–18.44 lbf⋅ft16.96–18.44 lbf⋅ft23–25 N⋅m

expand_moreServo steering pump


All other modifications	16.96–18.44 lbf⋅ft16.96–18.44 lbf⋅ft23–25 N⋅m


Vacuum pump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCarburetion


High-pressure pump pulley	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Injection hoses	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreInjection nozzle (injector)

expand_moreAll other modifications


Nuts	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Screws	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreInjection pump


All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreCharging

expand_moreTurbo charger

expand_moreAll other modifications


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	90°90°90°
Use hot screw paste

expand_moreTurbocharger oil feed line

expand_moreAt the turbocharger


Banjo screws	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace sealing rings.


On the engine block	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace sealing rings.


Turbocharger oil return line	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Replace sealing rings.

expand_moreCooling system

expand_moreCoolant pump

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


Nuts	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Screws	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


Nuts	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Screws	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCoolant pump pulley


All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


Fan wheel	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Radiator mounting	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Use new screws.
Second stage	90°90°90°


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten in steps from inside to outside.

expand_moreCylinder head screws

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM

Figure 1. Cylinder head, Cylinder head screws, Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws. See figure 1.
Second stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws. See figure 1.
Second stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_moreAll other modifications

Figure 2. Cylinder head, Cylinder head screws, All other modifications.


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use new screws. See figure 2.
Second stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°


Cylinder head screws shank length (new)	6.1 in6.1 in155 mm

expand_moreValve cover


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreAll other modifications


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreCrankshaft central screws

expand_moreAll other modifications


First stage	147.51 lbf⋅ft147.51 lbf⋅ft200 N⋅m
Use new screw.
Second stage	180°180°180°

expand_moreCrankshaft pulley

expand_moreFlywheel

expand_moreAll other modifications


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreMain bearing

expand_moreAll Audi gasoline V8 3.7 L BFL engines


First stage	Tighten by hand
Replace nuts.
Second stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
from inside to outside
Third stage	90°90°90°

expand_moreLateral-fitting screw


First stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreAll Audi gasoline V8 4.2 L BFM engines


First stage	Tighten by hand
Replace nuts.
Second stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
from inside to outside
Third stage	90°90°90°

expand_moreLateral-fitting screw


First stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreAll other modifications


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws.
Second stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Tighten the screws cross-wise from inside to outside.
Third stage	90°90°90°

expand_moreVibration damper


All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreEngine control

expand_moreBottom part of the control unit housing

expand_moreAll other modifications


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft drive belt deflection pulley

expand_moreAll Audi gasoline V8 3.7 L BFL engines


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi gasoline V8 4.2 L BFM engines


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreCamshaft timing chain slip rail


All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreCamshaft timing chain tensioner

expand_moreAll other modifications


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreCamshaft timing chain tensioning rail

expand_moreAll other modifications


Left	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing gear

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


Left	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace the screws and lubricate lightly
Right	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace the screws and lubricate lightly

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


Left	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace the screws and lubricate lightly
Right	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace the screws and lubricate lightly

expand_moreAll other modifications


Sprocket wheel	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
High pressure pump belt	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m

expand_moreControl drive chain tensioner

expand_moreAll other modifications


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreControl drive chain tensioning rail


All other modifications	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreControl drive sprocket wheel

expand_moreAll other modifications


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreM6


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreControl drive timing chain slip rail


All other modifications	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreDrive belt tensioner device

expand_moreAll Audi gasoline V8 3.7 L BFL engines


With hydraulic tensioning device	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll Audi gasoline V8 4.2 L BFM engines


With hydraulic tensioning device	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


Injection pump drive belt tensioning roller	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreInlet camshaft wheel

expand_moreAll other modifications


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreOil pump drive chain tensioner


All other modifications	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreOutlet camshaft wheel

expand_moreAll other modifications


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreTension rail bearing screws

expand_moreAll other modifications


Left	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
Right	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreTiming case cover first cylinder row


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreTiming case cover second cylinder row


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreToothed belt guard


Rear	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


Toothed belt guard at the bottom	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreToothed belt guard at the top

expand_moreAll Audi gasoline V8 3.7 L BFL engines


Left	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll Audi gasoline V8 4.2 L BFM engines


Left	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreToothed belt tensioning roller


All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreTop part of control unit housing

expand_moreEngine lubrication

expand_moreOil cooler


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


Oil cooler lines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Coolant line.

expand_moreOil drain plug


Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Audi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil filter housing

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Otherwise	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Otherwise	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll other modifications


Cap	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Otherwise	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m


Oil lines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreOil pump chain wheel


All Audi gasoline V8 3.7 L BFL engines	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
All Audi gasoline V8 4.2 L BFM engines	25.08 lbf⋅ft25.08 lbf⋅ft34 N⋅m
All other modifications	45.73 lbf⋅ft45.73 lbf⋅ft62 N⋅m
Property class 10.9

expand_moreOil sump

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM

expand_moreOil sump top part


At the gearbox	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Gradually tighten screws crosswise.
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


Oil sump lower part	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM

expand_moreOil sump top part


At the gearbox	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
M7	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Gradually tighten screws crosswise.
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


Oil sump lower part	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine management


Camshaft sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Charge air pressure sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreGlow plugs

expand_moreAll other modifications


Ceramic glow plug	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
maximum torque
Metal glow plug	12.54 lbf⋅ft12.54 lbf⋅ft17 N⋅m

expand_moreLambda sensor


Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Audi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All other modifications	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreEngine mounting


Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Audi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreEngine suspension

expand_moreSubframe


M10	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m

expand_moreM14


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreTorque arm


Audi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m
Audi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreExhaust system

expand_moreExhaust manifold


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.

expand_moreExhaust pipe


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.

expand_moreExhaust pipe bracket


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.

expand_moreFuel supply

expand_moreFuel filter bracket

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


Clamps	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Otherwise	1.11 lbf⋅ft1.11 lbf⋅ft1.5 N⋅m

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


Clamps	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Otherwise	1.11 lbf⋅ft1.11 lbf⋅ft1.5 N⋅m


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreIgnition system


Spark plugs	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreStart system

expand_moreStarter

expand_moreAudi gasoline V8 3.7 L BFL 276 HP at 6000 RPM, 360 N⋅m at 3750 RPM


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M12	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreAudi gasoline V8 4.2 L BFM 330 HP at 6500 RPM, 430 N⋅m at 3500 RPM


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M12	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m


All other modifications	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2002 Audi A8 Quattro user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Audi warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Chassis and Body Fastener Tightening Specifications
Engine Fastener Tightening Specifications
Front Suspension Fastener Tightening Specifications
Rear Suspension Fastener Tightening Specifications
Transmission Fastener Tightening Specifications

Service Intervals

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Audi A8 Quattro service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2002 Audi A8 Quattro you're not only saving money, but also also improving your technical skills and learning something new.

2002 Audi A8 Quattro generations

In 2002 Audi offered 2 generations of the A8 Quattro. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

D2 second facelift

Type 4D2, Type 4D8

2002 Audi A8 Quattro D3 Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2002 Audi A8 Quattro generations

D2 second facelift

Audi A8 Quattro D3 model years

Suggest edit