2008 Audi A6 Avant Quattro engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system


Intake manifold	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


All Audi gasoline V6 3.1 L AUK engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.4 L BDW engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.8 L BDX engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


Compressor belt	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
Otherwise	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


All Audi gasoline V6 2.8 L CCDA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Property class 10.9

expand_moreAuxiliary drive belt tensioner


All Audi gasoline V6 3.1 L AUK engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.4 L BDW engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.8 L BDX engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


Compressor belt	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Otherwise	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


All Audi gasoline V6 2.8 L CCDA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications

expand_moreM10


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
use only property class 10.9
Second stage	90°90°90°
Replace screws.


M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


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

expand_moreAir-conditioning compressor bracket


All Audi gasoline V6 3.1 L AUK engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.4 L BDW engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.8 L BDX engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 3.0 L CAJA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.8 L CCDA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAir-conditioning compressor pressure line

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


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

expand_moreAlternator


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

expand_moreGenerator bracket


Power steering pump bracket	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreHydraulic lines at the servo-steering pump


Banjo screws	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m


Servo pump pulley	14.75–16.96 lbf⋅ft14.75–16.96 lbf⋅ft20–23 N⋅m
Servo steering pump	14.75–16.96 lbf⋅ft14.75–16.96 lbf⋅ft20–23 N⋅m
Vacuum pump	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCarburetion

expand_moreFuel-distributing pipe


All Audi gasoline V6 3.0 L CAJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


High-pressure line	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
High-pressure pump	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
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 Audi diesel V6 2.7 L CANC engines


Nuts	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


Nuts	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Screws	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten the screws in steps.

expand_moreInjection pump


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreCharging


Charge air pipes	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreCharge air compressor


Nuts	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Stud screws	12.54 lbf⋅ft12.54 lbf⋅ft17 N⋅m

expand_moreTurbo charger


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

expand_moreTurbocharger oil feed line

expand_moreAll Audi diesel V6 2.7 L BPP engines


At the turbocharger	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.

expand_moreAll Audi diesel V6 2.7 L BSG engines


At the turbocharger	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.


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


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

expand_moreCooling system


Coolant pump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Coolant pump pulley	14.75–16.96 lbf⋅ft14.75–16.96 lbf⋅ft20–23 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

Figure 1. Cylinder head, Camshaft bearing.

expand_moreAll Audi gasoline V6 2.8 L BDX engines
See figure 1.


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


First stage	Screw in screw(s) by hand.
Replace screws. See figure 1.

expand_moreSecond stage


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

expand_moreAll other modifications

Figure 2. Cylinder head, Camshaft bearing, All other modifications.


First stage	Screw in screw(s) by hand.
Note correct order of tensioning. See figure 2.
Second stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreCylinder head screws

expand_moreAll Audi gasoline V6 2.4 L BDW engines

Figure 3. Cylinder head, Cylinder head screws, Audi gasoline V6 2.4 L BDW.


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

expand_moreAll Audi gasoline V8 4.2 L BVJ engines

expand_moreScrews 1 – 10

Figure 4. Cylinder head, Cylinder head screws, Audi gasoline V8 4.2 L BVJ, Screws 1 – 10.


First stage	Tighten by hand
Use new screws. See figure 4.
Second stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Third stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Fourth stage	90°90°90°
Fifth stage	90°90°90°

expand_moreScrews 11 – 14

expand_moreSixth stage


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

expand_moreCap screw 6


Seventh stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace sealing rings.

expand_moreAll Audi gasoline V6 3.0 L CAJA engines

expand_moreScrews 1 – 8

Figure 5. Cylinder head, Cylinder head screws, Audi gasoline V6 3.0 L CAJA, Screws 1 – 8.


First stage	Tighten by hand
Use new screws. See figure 5.
Second stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_moreScrew 9


Fifth stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll other modifications

Figure 6. Cylinder head, Cylinder head screws, All other modifications.


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use new screws. See figure 6.
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
Valve cover	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine block

expand_moreBalance shaft gear wheel

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreWheel


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


All Audi diesel V6 2.7 L CANC engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


All Audi diesel V6 3.0 L CDYA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel V6 3.0 L CDYC engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll other modifications


Central screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Wheel	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreConnecting rod bearing

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace and lightly oil the screw.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreAll other modifications


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

expand_moreCrankshaft central screws

expand_moreCrankshaft pulley


All Audi gasoline V6 3.1 L AUK engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.4 L BDW engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreAll other modifications


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	90°90°90°
use only property class 10.9

expand_moreDrive plate

expand_moreAll other modifications


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

expand_moreEngine block closure screws


2.4 quattro with gasoline V6 2.4 L 174 HP at 6000 RPM, 230 N⋅m at 3000 RPM engine (2005.3–2008.10)	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreFlywheel

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


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

expand_moreAll Audi diesel V6 2.7 L CANC engines

expand_more22,5 mm screws


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

expand_more35 mm screws


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screws.
Second stage	180°180°180°

expand_more43 mm screws


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screws.
Second stage	180°180°180°

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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

expand_moreAll other modifications

expand_more22,5 mm screws


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

expand_more35 mm screws


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	180°180°180°

expand_more43 mm screws


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	180°180°180°

expand_moreMain bearing

expand_moreAll Audi gasoline V6 3.1 L AUK engines

expand_moreM10


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screws.
Second stage	90°90°90°
Alternately, first inside and then outside

expand_moreM8


Third stage	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline V6 2.4 L BDW engines

expand_moreM10


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Alternately, first inside and then outside
Second stage	90°90°90°
Use new screws.

expand_moreM8


Third stage	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines

expand_moreScrews 1 – 16


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


Screws 17 – 31	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll other modifications


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Alternately, first inside and then outside
Second stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screws.
Third stage	90°90°90°

expand_moreVibration damper

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
Second stage	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Tighten the screws crosswise.
Third stage	90°90°90°

expand_moreAll other modifications


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

expand_moreEngine control

expand_moreBottom part of the control unit housing

expand_moreAll Audi gasoline V6 2.4 L BDW engines


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screws.
Second stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Third stage	90°90°90°

expand_moreM6


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


M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Tighten cross-wise.

expand_moreAll other modifications


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreCamshaft drive belt deflection pulley

expand_moreCamshaft timing chain slip rail

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 tensioner


All Audi gasoline V6 3.1 L AUK engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.4 L BDW engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.8 L BDX engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 3.0 L CAJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.8 L CCDA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

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


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

expand_moreCamshaft timing gear

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


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

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_moreChain tensioner


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

expand_moreControl drive chain tensioner

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


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


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

expand_moreControl drive chain tensioning rail

expand_moreAll Audi gasoline V6 3.1 L AUK engines


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
Second stage	90°90°90°
Use screw-locking compound.

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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


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

expand_moreControl drive sprocket wheel

expand_moreAll Audi gasoline V6 2.4 L BDW engines

expand_moreM10


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

expand_moreM6


First stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Use new screw.
Second stage	60°60°60°

expand_moreAll Audi gasoline V6 2.8 L BDX engines

expand_moreBearing pedestal


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screw.
Second stage	45°45°45°

expand_moreM10


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

expand_moreM8


First stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L CAJA engines

expand_moreBearing pedestal


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

expand_moreM10


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

expand_moreM8


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Replace screws.
Second stage	60°60°60°

expand_moreAll Audi diesel V6 2.7 L CANC engines


Left	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreRight


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines

expand_moreBearing pedestal


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screw.
Second stage	45°45°45°

expand_moreM10


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

expand_moreM8


First stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Use new screw.
Second stage	90°90°90°

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

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreAll Audi diesel V6 2.7 L CANC engines


Bottom	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreTop


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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

expand_moreAll Audi diesel V6 3.0 L CDYA engines

expand_moreRight


Bottom	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreTop


Right	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Otherwise	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m


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

expand_moreDrive belt tensioner device

expand_moreDrive chain balance shaft tensioner

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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


Injection pump drive belt tensioning roller	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreInlet camshaft wheel

expand_moreAll Audi gasoline V6 2.4 L BDW engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Third stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll other modifications


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

expand_moreOil pump drive chain tensioner

expand_moreAll Audi gasoline V6 2.4 L BDW engines


First stage	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Replace screws.
Second stage	45°45°45°

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


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

expand_moreOutlet camshaft wheel

expand_moreAll Audi gasoline V6 2.4 L BDW engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace screws.
Second stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Third stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll other modifications


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


Tension rail bearing screws	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreTiming case cover

expand_moreAll Audi gasoline V6 3.0 L CAJA engines

expand_moreScrew 1

Figure 7. Engine control, Timing case cover, Audi gasoline V6 3.0 L CAJA, Screw 1.


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
See figure 7.
Third stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreScrews 2 – 11


Second stage	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Tighten cross-wise.

expand_moreScrews 9 – 11


Fourth stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreScrew 4


Fifth stage	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreAll other modifications


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreTiming case cover first cylinder row

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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


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

expand_moreTiming case cover second cylinder row

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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


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

expand_moreToothed belt guard


All other modifications	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Toothed belt guard, rear

expand_moreToothed belt guard at the bottom

expand_moreToothed belt guard at the top

expand_moreToothed belt guard center

expand_moreToothed belt tensioning roller

expand_moreAll other modifications


High pressure pump belt	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws.

expand_moreTop part of control unit housing


All Audi gasoline V8 4.2 L BVJ engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll other modifications


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

expand_moreEngine lubrication

expand_moreOil cooler


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

expand_moreOil drain plug


All Audi gasoline V6 3.1 L AUK engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.4 L BDW engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.8 L BDX engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V8 4.2 L BVJ engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 3.0 L CAJA engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.8 L CCDA engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreAll other modifications


M14	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
M24	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreOil filter housing

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Otherwise	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Oil filter housing cap

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
On the engine block	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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

expand_moreOil lines


Banjo screws	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M6	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m


Oil pump	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil pump chain wheel


All Audi diesel V6 3.0 L ASB engines	45.73 lbf⋅ft45.73 lbf⋅ft62 N⋅m
Property class 10.9

expand_moreAll Audi gasoline V6 2.4 L BDW engines


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

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


All other modifications	47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m
Property class 10.9

expand_moreOil sump

expand_moreAll Audi diesel V6 3.0 L ASB engines

expand_moreAt the gearbox


Oil sump top part	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOil sump lower part


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

expand_moreOn the engine block


Oil sump top part	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Gradually tighten screws crosswise.

expand_moreAll Audi gasoline V6 2.4 L BDW engines


Oil sump lower part	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
Gradually tighten screws crosswise.
Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Gradually tighten screws crosswise.

expand_moreAll Audi gasoline V6 2.8 L BDX engines

expand_moreOil sump lower part


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


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Gradually tighten screws crosswise.

expand_moreAll Audi diesel V6 2.7 L BPP engines

expand_moreAt the gearbox


Oil sump top part	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOil sump lower part


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

expand_moreOn the engine block


Oil sump top part	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Gradually tighten screws crosswise.

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


Oil sump lower part	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreOil sump top part


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Tighten the screws crosswise.
Second stage	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines

expand_moreOil sump lower part


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

expand_moreOil sump top part


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws and tighten them crosswise.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 2.8 L CCDA engines

expand_moreOil sump lower part


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


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Gradually tighten screws crosswise.

expand_moreAll other modifications

expand_moreAt the gearbox


Oil sump top part	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreOil sump lower part


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

expand_moreOil sump top part


Locking screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreOn the engine block


Oil sump top part	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine management

expand_moreCamshaft sensor

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


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

expand_moreCharge air pressure sensor


All Audi gasoline V6 3.0 L CAJA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreCrankshaft sensor


All Audi gasoline V6 3.0 L CAJA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All other modifications	3.32 lbf⋅ft3.32 lbf⋅ft4.5 N⋅m

expand_moreGlow plugs


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


Knock sensor	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Lambda sensor	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreEngine mounting


Engine bracket	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreEngine mounting


All Audi gasoline V6 2.4 L BDW engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


Bearing casing	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
On bearing casing	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On engine bracket	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreSubframe

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


M10	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m

expand_moreM12


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

expand_moreAll other modifications


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


Subframe stiffening plate	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreTorque arm

expand_moreAll Audi gasoline V6 2.4 L BDW engines


At the crossmember	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
On the engine block	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


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

expand_moreTorque support bracket


All Audi gasoline V6 3.0 L CAJA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 3.0 L CCAA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreExhaust system


Catalytic converter	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace the nuts and use fitting paste

expand_moreExhaust manifold

expand_moreAll Audi gasoline V6 2.8 L BDX engines


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

expand_moreAll Audi gasoline V8 4.2 L BVJ engines


First stage	Tighten by hand
Replace the nuts and use fitting paste
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Third stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreAll Audi gasoline V6 3.0 L CAJA engines


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

expand_moreAll Audi gasoline V6 2.8 L CCDA engines


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


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace the nuts and use fitting paste


Exhaust pipe	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace nuts.

expand_moreExhaust pipe bracket


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

expand_morePrimary catalytic converter


At the turbocharger	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Replace nuts. Use hot screw paste.

expand_moreFuel supply

expand_moreFuel filter bracket


All Audi gasoline V6 3.1 L AUK engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All Audi gasoline V6 2.4 L BDW engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All Audi gasoline V6 2.8 L BDX engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All Audi gasoline V6 3.0 L CAJA engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All Audi gasoline V6 2.8 L CCDA engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All Audi gasoline V6 2.8 L CCEA engines	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreFuel lines


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

expand_moreIgnition system


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

expand_moreStart system


Starter	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 2008 Audi A6 Avant 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

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 A6 Avant 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 2008 Audi A6 Avant Quattro you're not only saving money, but also also improving your technical skills and learning something new.

2008 Audi A6 Avant Quattro generations

In 2008 Audi offered 2 generations of the A6 Avant Quattro. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

C6

Type 4F5

2008 Audi A6 Avant Quattro C6 facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2008 Audi A6 Avant Quattro generations

C6

Audi A6 Avant Quattro C6 facelift model years

Suggest edit