2015 Audi A8 engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


All Audi gasoline straight-4 2.0 L CHJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi diesel V6 3.0 L CLAB engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


All Audi diesel V6 3.0 L CLAB engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAuxiliary drive belt tensioner

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	90°90°90°


All Audi gasoline V6 2.5 L CPAA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAir-conditioning compressor


All Audi gasoline straight-4 2.0 L CHJA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi diesel V6 3.0 L CLAB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines

expand_moreAluminium screws


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	180°180°180°


Steel screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAir-conditioning compressor bracket

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Tighten the new screws evenly in several steps.
Second stage	90°90°90°


All Audi diesel V6 3.0 L CLAB engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAir-conditioning compressor pressure line


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Alternator	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreGenerator bracket


All Audi diesel V6 3.0 L CLAB engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_morePower steering pump bracket


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreHydraulic lines at the servo-steering pump

expand_moreAll Audi diesel V6 3.0 L CLAB engines


Screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Union nuts	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


Screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Socket unions	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreServo pump pulley


All Audi diesel V6 3.0 L CLAB engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreServo steering pump


All Audi diesel V6 3.0 L CLAB engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Vacuum pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCarburetion

expand_moreFuel-distributing pipe


All Audi diesel V6 3.0 L CLAB engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreHigh-pressure line


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi diesel V6 3.0 L CLAB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreHigh-pressure pump


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Tighten bolts uniformly in several passes.
All Audi diesel V6 3.0 L CLAB engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	Tighten by hand
Second stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Third stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
tighten gradually cross-wise

expand_moreHigh-pressure pump pulley

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


Central nuts	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreInjection hoses


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreInjection nozzle (injector)

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


Retaining clamp	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_morePressure tube connection


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace components.

expand_moreCharging

expand_moreTurbo charger


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws. Use hot screw paste.

expand_moreCooling system


Coolant pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Gradually tighten screws crosswise.

expand_moreCoolant pump pulley


All Audi diesel V6 3.0 L CLAB engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCoolant pump drive wheel

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use new screw. (left-hand thread)
Second stage	90°90°90°

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreBearing casing


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Tighten new screws in inside-to-outside order.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	Screw in screw(s) by hand.
Note correct order of tensioning.
Second stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCylinder head screws

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreScrews 1 – 10

Figure 1. Cylinder head, Cylinder head screws, Audi gasoline straight-4 2.0 L CHJA, Screws 1 – 10.


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws. See figure 1.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreScrew 11


Fourth stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Fifth stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines

Figure 2. Cylinder head, Cylinder head screws, Audi diesel V6 3.0 L CLAB.


First stage	Tighten by hand
Replace screws. See figure 2.
Second stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Third stage	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_moreAll Audi gasoline V6 2.5 L CPAA engines

Figure 3. Cylinder head, Cylinder head screws, Audi gasoline V6 2.5 L CPAA.


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreValve cover

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreBearing casing


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Tighten new screws in inside-to-outside order.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines

Figure 4. Cylinder head, Valve cover, Audi diesel V6 3.0 L CLAB.


First stage	Screw in screw(s) by hand.
Replace screws. See figure 4.

expand_moreSecond stage


First step	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second step	90°90°90°


All Audi gasoline V6 2.5 L CPAA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten crosswise from inside to outside.
All Audi gasoline V6 2.5 L CVBA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten crosswise from inside to outside.

expand_moreValve cover locking screws


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreEngine block

expand_moreBalance shaft gear wheel

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


Bearing casing	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


Central screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreCentral nuts


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Shaft must be replaced when the screw connection has been loosened.
Second stage	90°90°90°


Wheel	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreConnecting rod bearing

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


First stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	90°90°90°
Oil screw head support and thread.

expand_moreCrankshaft central screws

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


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

expand_moreCrankshaft pulley


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreDrive plate

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


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

expand_moreAll Audi diesel V6 3.0 L CLAB engines

expand_moreOn crankshaft


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

expand_moreEngine block closure screws


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreFlywheel

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


To drive plate	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.

expand_moreMain bearing

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreScrews M8 and M10


First stage	Tighten by hand
Replace screws.

expand_moreScrews (M10)


Second stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Third stage	90°90°90°

expand_moreScrews (M8)


Fourth stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Fifth stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines

Figure 5. Engine block, Main bearing, Audi diesel V6 3.0 L CLAB.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws. See figure 5.

expand_moreSecond stage


First step	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Second step	180°180°180°

expand_moreVibration damper

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreEngine control

expand_moreBalance shaft timing chain guide rail


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreBalance shaft timing chain tension rail


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreBottom part of the control unit housing

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)

Figure 6. Engine control, Bottom part of the control unit housing, 2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–).

expand_moreVariant 1
See figure 6.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	45°45°45°

Figure 7. Engine control, Bottom part of the control unit housing, 2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–).

expand_moreVariant 2
See figure 7.


First stage	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreCamshaft adjuster

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreBearing casing


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreInlet camshaft


Central screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Left-hand thread

expand_moreM6


Cap	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreOutlet camshaft

expand_moreCentral screws


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreCamshaft timing chain slip rail


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


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

expand_moreCamshaft timing chain tensioner


All Audi gasoline straight-4 2.0 L CHJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


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


All Audi gasoline V6 2.5 L CPAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCamshaft timing chain tensioning rail


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing gear


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


Control drive chain tensioner	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreControl drive timing chain slip rail


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreDrive chain balance shaft tensioner


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreInlet camshaft wheel

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


Wheel	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreIntermediate shaft chain sprocket

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screw and intermediate wheel when loosening the screw.
Second stage	for freedom from play

expand_moreThird stage


First step	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second step	90°90°90°

expand_moreOil pump drive chain tensioner


All Audi gasoline straight-4 2.0 L CHJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


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

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreTension rail bearing screws


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreTiming case cover

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)

expand_moreScrews 1 – 4

Figure 8. Engine control, Timing case cover, 3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–), Screws 1 – 4.


First stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
See figure 8.

expand_moreScrews 5 – 10


Fourth stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreScrews 5 – 24


Second stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Replace screws.
Third stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Control tensioner
Fifth stage	90°90°90°

expand_moreTiming case cover first cylinder row

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


First stage	Screw in screw(s) by hand.
Replace screws.

expand_moreSecond stage


First step	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second step	90°90°90°

expand_moreTiming case cover second cylinder row

expand_more3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)


First stage	Screw in screw(s) by hand.
Replace screws.

expand_moreSecond stage


First step	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Second step	90°90°90°

expand_moreToothed belt guard

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


Coolant pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreTop part of control unit housing


2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten cross-wise.

expand_moreEngine lubrication

expand_moreOil cooler


All Audi gasoline straight-4 2.0 L CHJA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel V6 3.0 L CLAB engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Replace screws.
Second stage	90°90°90°


Oil drain plug	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screw.

expand_moreOil filter housing

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screws and tighten them crosswise.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines


Oil filter cover	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
On the engine block	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Otherwise	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreOil pump


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	90°90°90°


All Audi gasoline V6 2.5 L CPAA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil pump chain wheel

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


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

expand_moreOil sump

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

Figure 9. Engine lubrication, Oil sump, Audi gasoline straight-4 2.0 L CHJA.

expand_moreOil sump lower part
See figure 9.


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	45°45°45°

Figure 10. Engine lubrication, Oil sump, Audi gasoline straight-4 2.0 L CHJA.

expand_moreOil sump top part
See figure 10.


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines

Figure 11. Engine lubrication, Oil sump, Audi diesel V6 3.0 L CLAB.

expand_moreOil sump lower part
See figure 11.


First stage	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m
Replace screws.
Second stage	90°90°90°

Figure 12. Engine lubrication, Oil sump, Audi diesel V6 3.0 L CLAB.

expand_moreOil sump top part
See figure 12.


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screws.
Second stage	90°90°90°
Locking screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
TDC marking.

expand_moreEngine management

expand_moreCamshaft sensor


All Audi gasoline straight-4 2.0 L CHJA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel V6 3.0 L CLAB engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m


Crankshaft sensor	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreExhaust gas temperature sensor


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreGlow plugs


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	12.54 lbf⋅ft12.54 lbf⋅ft17 N⋅m

expand_moreKnock sensor


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreLambda sensor


All Audi gasoline straight-4 2.0 L CHJA engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All Audi diesel V6 3.0 L CLAB engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All Audi gasoline V6 2.5 L CPAA engines	38.35 lbf⋅ft38.35 lbf⋅ft52 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	38.35 lbf⋅ft38.35 lbf⋅ft52 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket


All Audi gasoline straight-4 2.0 L CHJA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


On the engine block	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreEngine mounting

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


At the subframe	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreOn engine bracket


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines


At the subframe	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreOn engine bracket


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreSubframe

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreOn chassis


First stage	84.82 lbf⋅ft84.82 lbf⋅ft115 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	84.82 lbf⋅ft84.82 lbf⋅ft115 N⋅m
Replace screws.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	84.82 lbf⋅ft84.82 lbf⋅ft115 N⋅m
Gradually tighten screws crosswise.
Second stage	90°90°90°

expand_moreSubframe diagonal strut

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


At the gearbox bracket	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOn chassis


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Use new screws.
Second stage	180°180°180°

expand_moreTorque arm

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


On engine sump	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	90°90°90°

expand_moreTorque support bracket

expand_more2.0 TFSI hybrid with gasoline straight-4 2.0 L 208 HP at 4300 RPM, 350 N⋅m at 1500 RPM engine (2012.2–)


On chassis	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreExhaust system


Catalytic converter	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace nuts. Use hot screw paste.

expand_moreDiesel particulate filter


3.0 TDI with diesel V6 3.0 L 201 HP at 3750 RPM, 400 N⋅m at 1250 RPM engine (2011.9–)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace nuts. Use hot screw paste.

expand_moreExhaust manifold

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines

expand_moreNuts


Bottom	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace nuts. Use hot screw paste.

expand_moreTop nuts


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace nuts. Use hot screw paste.
Second stage	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Third stage	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Fourth stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi diesel V6 3.0 L CLAB engines


At the cylinder head	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts. Use hot screw paste.

expand_moreAt the turbocharger


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

expand_moreAll Audi gasoline V6 2.5 L CPAA engines


First stage	Tighten by hand
Replace nuts. Use hot screw paste.
Second stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Tighten crosswise from inside to outside.
Third stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Exhaust manifold heat shields	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreExhaust pipe


All Audi gasoline straight-4 2.0 L CHJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace nuts.
All Audi diesel V6 3.0 L CLAB engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws.

expand_moreIgnition system


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

expand_moreStart system

expand_moreStarter

expand_moreAll Audi gasoline straight-4 2.0 L CHJA engines


M10 × 50 screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreM12


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

expand_moreAll Audi diesel V6 3.0 L CLAB engines


M10 × 50 screws	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m

expand_moreM12


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


All Audi gasoline V6 2.5 L CPAA engines	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
All Audi gasoline V6 2.5 L CVBA engines	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 2015 Audi A8 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

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 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 2015 Audi A8 you're not only saving money, but also also improving your technical skills and learning something new.

2015 Audi A8 D4 facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Audi A8 D4 facelift model years

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