2003 Audi A4 engine fastener tightening specifications

expand_moreAir intake system

expand_moreIntake manifold


All Audi gasoline straight-4 2.0 L ALT engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline straight-4 1.6 L ALZ engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline straight-4 1.8 L AMB engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel straight-4 1.9 L AVB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi diesel straight-4 1.9 L AVF engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 2.0 L AWA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel straight-4 1.9 L AWX engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L BEX engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline straight-4 1.8 L BFB engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


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

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


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


All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAuxiliary drive belt tensioner


All Audi gasoline straight-4 2.0 L ALT engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.4 L AMM engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Audi gasoline V6 3.0 L ASN engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


All Audi gasoline straight-4 2.0 L AWA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi gasoline V6 3.0 L BBJ engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


All Audi gasoline V6 2.4 L BDV engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAuxiliary drive belt tensioner


All Audi diesel straight-4 1.9 L AVB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screw.
All Audi diesel straight-4 1.9 L AVF engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screw.
All Audi diesel straight-4 1.9 L AWX engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screw.
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


Air-conditioning compressor	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
use only property class 10.9

expand_moreAir-conditioning compressor bracket


All Audi gasoline straight-4 2.0 L ALT engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi gasoline V6 3.0 L ASN engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel straight-4 1.9 L AVB engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi diesel straight-4 1.9 L AVF engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 3.0 L AVK engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline straight-4 2.0 L AWA engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Audi diesel straight-4 1.9 L AWX engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use screw-locking compound.

expand_moreAir-conditioning compressor pressure line


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAlternator


All Audi gasoline straight-4 2.0 L ALT engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline straight-4 1.6 L ALZ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline straight-4 1.8 L AMB engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi diesel straight-4 1.9 L AVB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi diesel straight-4 1.9 L AVF engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 2.0 L AWA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel straight-4 1.9 L AWX engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L BEX engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline straight-4 1.8 L BFB engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications


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


Power steering pump bracket	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Servo pump pulley	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreServo steering pump


All Audi gasoline straight-4 2.0 L ALT engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L AMB engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi gasoline V6 2.4 L AMM engines


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


All Audi gasoline straight-4 2.0 L AWA engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L BEX engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Audi gasoline straight-4 1.8 L BFB engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreTensioning device for air-conditioning compressor auxiliary drive belt


All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreVacuum pump


All Audi diesel V6 2.5 L BCZ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel V6 2.5 L BDG engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel V6 2.5 L BFC engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

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_moreCarburetion


Injection hoses	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection nozzle (injector)

expand_moreAll Audi diesel V6 2.5 L BFC engines

expand_moreAt the cylinder head


Retaining clamp	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


First stage	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace screws.
Second stage	270°270°270°

expand_moreInjection pump


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


Injection pump pulley	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Do not loosen the middle nut.

expand_moreCharging

expand_moreTurbo charger


All Audi gasoline straight-4 1.8 L AMB engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws. Use hot screw paste.
All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace nuts.
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace nuts.
All Audi gasoline straight-4 1.8 L BEX engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws. Use hot screw paste.

expand_moreAll Audi gasoline straight-4 1.8 L BFB engines


On exhaust manifold	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws. Use hot screw paste.


All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace nuts.
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.

expand_moreTurbocharger bracket

expand_moreAll Audi diesel straight-4 1.9 L AVB engines

expand_moreWith 6-speed gearbox


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
On the engine block	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreWith Multitronic 5-speed gearbox


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
On engine mounting	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines

expand_moreWith 6-speed gearbox


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
On the engine block	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreWith Multitronic 5-speed gearbox


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
On engine mounting	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


At the turbocharger	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
On the engine block	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreTurbocharger coolant feed line


Banjo screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace sealing rings.

expand_moreTurbocharger coolant return line


Union nuts	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreTurbocharger oil feed line

expand_moreAll Audi gasoline straight-4 1.8 L AMB engines


Union nuts	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline straight-4 1.8 L BEX engines


Union nuts	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline straight-4 1.8 L BFB engines


Banjo screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Union nuts	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi diesel V6 2.5 L BFC engines


At the oil filter	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace sealing rings.

expand_moreAt the turbocharger


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

expand_moreAll other modifications


Support	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Union nuts	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreTurbocharger oil return line

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


At the turbocharger	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace sealing rings.

expand_moreOn the engine block


Union nuts	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


At the turbocharger	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace sealing rings.

expand_moreOn the engine block


Union nuts	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Audi diesel V6 2.5 L BFC engines


At the turbocharger	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace sealing rings.


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

expand_moreCooling system

expand_moreCoolant pump


All Audi gasoline V6 2.4 L AMM engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 3.0 L ASN engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 3.0 L AVK engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 2.4 L BDV engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreFan wheel


All Audi diesel straight-4 1.9 L AVB engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
All Audi diesel straight-4 1.9 L AVF engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.
All Audi diesel straight-4 1.9 L AWX engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace screws.

expand_moreAll other modifications


With twin fan	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Otherwise	2.21 lbf⋅ft2.21 lbf⋅ft3 N⋅m

expand_moreViscous fan clutch


All Audi gasoline V6 2.4 L AMM engines	27.29 lbf⋅ft27.29 lbf⋅ft37 N⋅m
All Audi gasoline V6 2.4 L BDV engines	27.29 lbf⋅ft27.29 lbf⋅ft37 N⋅m

expand_moreAll Audi diesel V6 2.5 L BFC engines


Screw 1	27.29 lbf⋅ft27.29 lbf⋅ft37 N⋅m
Torques applies only in combination with special tool.
Screw 2	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Without special tool

expand_moreAll other modifications


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Ribbed screw head.	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


All Audi gasoline straight-4 2.0 L ALT engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
cross-wise from inside to outside
All Audi gasoline straight-4 1.6 L ALZ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
First tighten bearing covers 2 and 4 alternately and in steps
All Audi gasoline V6 3.0 L ASN engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten in steps from inside to outside.

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws.
Second stage	90°90°90°
First tighten bearing covers 2 and 4 alternately and in steps

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws.
Second stage	90°90°90°
First tighten bearing covers 2 and 4 alternately and in steps


All Audi gasoline V6 3.0 L AVK engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten in steps from inside to outside.

expand_moreAll Audi gasoline straight-4 2.0 L AWA engines


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


All Audi gasoline V6 3.0 L BBJ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten in steps from inside to outside.

expand_moreAll Audi diesel V6 2.5 L BFC engines


Cap nuts	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Otherwise	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
cross-wise from inside to outside


All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
First tighten bearing covers 2 and 4 alternately and in steps

expand_moreCylinder head screws


Third stage	90°90°90°

expand_moreAll Audi gasoline V6 2.4 L AMM engines


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

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws.
Second stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Fourth stage	90°90°90°

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws.
Second stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Fourth stage	90°90°90°

expand_moreAll Audi diesel V6 2.5 L BFC engines


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

expand_moreAll other modifications


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

expand_moreCylinder head screws shank length (new)


All Audi gasoline straight-4 2.0 L ALT engines	5 in5 in127 mm
All Audi gasoline V6 2.4 L AMM engines	5.24 in5.24 in133 mm
All Audi gasoline V6 3.0 L ASN engines	5 in5 in127 mm
All Audi diesel straight-4 1.9 L AVB engines	6.54 in6.54 in166 mm
All Audi diesel straight-4 1.9 L AVF engines	6.54 in6.54 in166 mm
All Audi gasoline V6 3.0 L AVK engines	5 in5 in127 mm
All Audi diesel straight-4 1.9 L AWX engines	6.54 in6.54 in166 mm
All Audi gasoline V6 3.0 L BBJ engines	5 in5 in127 mm
All Audi diesel V6 2.5 L BCZ engines	6.1 in6.1 in155 mm
All Audi diesel V6 2.5 L BDG engines	6.1 in6.1 in155 mm
All Audi gasoline V6 2.4 L BDV engines	5.24 in5.24 in133 mm
All Audi diesel V6 2.5 L BFC engines	6.1 in6.1 in155 mm
All other modifications	4.53 in4.53 in115 mm

expand_moreRocker bridge

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


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

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


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


Valve cover	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine block

expand_moreConnecting rod bearing


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 Audi gasoline V6 2.4 L AMM engines


First stage	147.51 lbf⋅ft147.51 lbf⋅ft200 N⋅m
Replace bolt.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L ASN engines


First stage	147.51 lbf⋅ft147.51 lbf⋅ft200 N⋅m
Replace screws.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


First stage	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


First stage	88.51 lbf⋅ft88.51 lbf⋅ft120 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L BBJ engines


First stage	147.51 lbf⋅ft147.51 lbf⋅ft200 N⋅m
Replace screws.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreAll Audi diesel V6 2.5 L BFC engines


First stage	147.51 lbf⋅ft147.51 lbf⋅ft200 N⋅m
Replace screws.
Second stage	90°90°90°
Third stage	90°90°90°

expand_moreAll other modifications


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

expand_moreCrankshaft pulley


All Audi gasoline straight-4 1.6 L ALZ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.4 L AMM engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 3.0 L ASN engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 3.0 L AVK engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 2.4 L BDV engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll other modifications


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

expand_moreEngine block closure screws


All Audi gasoline V6 2.4 L AMM engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 3.0 L ASN engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 3.0 L AVK engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline V6 2.4 L BDV engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreFlywheel

expand_moreAll Audi gasoline straight-4 1.8 L AMB engines

expand_more35 mm screws


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

expand_moreAll Audi gasoline V6 3.0 L ASN engines

expand_more35 mm screws


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

expand_moreAll Audi gasoline straight-4 1.8 L BFB engines

expand_more35 mm screws


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

expand_more22,5 mm screws


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

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 2.4 L AMM engines


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screws.
Second stage	90°90°90°
Tighten the screws cross-wise from inside to outside.
Lateral-fitting screw	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi gasoline V6 3.0 L ASN engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use new screws.
Second stage	90°90°90°
Tighten the screws cross-wise from inside to outside.

expand_moreLateral-fitting screw


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

expand_moreAll Audi gasoline V6 3.0 L BBJ engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use new screws.
Second stage	90°90°90°
Tighten the screws cross-wise from inside to outside.

expand_moreLateral-fitting screw


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

expand_moreAll Audi diesel V6 2.5 L BFC engines

expand_moreScrews 1 – 8


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

expand_moreScrews 9 – 16


Third stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Fourth stage	90°90°90°

expand_moreLateral-fitting screw


Fifth stage	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreAll other modifications


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use new screws.
Second stage	90°90°90°

expand_moreVibration damper

expand_moreAll Audi gasoline straight-4 2.0 L ALT engines


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


All Audi gasoline V6 2.4 L AMM engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 3.0 L ASN engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 3.0 L AVK engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi diesel V6 2.5 L BCZ engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BDG engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi gasoline V6 2.4 L BDV engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll other modifications


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

expand_moreEngine control

expand_moreCamshaft adjuster


All Audi gasoline straight-4 2.0 L AWA engines	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCamshaft drive belt deflection pulley


All Audi gasoline straight-4 2.0 L ALT engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L AMB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


With friction-damped tension pulley	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
With hydraulic tensioning device	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


With friction-damped tension pulley	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
With hydraulic tensioning device	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi gasoline straight-4 2.0 L AWA engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m


All Audi gasoline straight-4 1.8 L BEX engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi gasoline straight-4 1.8 L BFB engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreCamshaft timing gear


All Audi gasoline straight-4 1.6 L ALZ engines	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_moreAll Audi gasoline V6 2.4 L AMM engines


Left	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Right	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Audi gasoline V6 3.0 L ASN engines


Left	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Right	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


Central screws	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Wheel	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


Central screws	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Wheel	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi gasoline straight-4 2.0 L AWA engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreAll Audi gasoline V6 3.0 L BBJ engines


Left	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Right	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_moreAll Audi diesel V6 2.5 L BFC engines


Central screws	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Wheel	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


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

expand_moreControl drive chain tensioner


2.0 FSI with gasoline straight-4 2.0 L 148 HP at 6000 RPM, 200 N⋅m at 3250 RPM engine (2002.7–2004.12)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreDrive belt tensioner device


All Audi gasoline V6 2.4 L AMM engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.
All Audi gasoline V6 3.0 L ASN engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi diesel straight-4 1.9 L AVB engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
With hydraulic tensioning device
All Audi gasoline V6 3.0 L AVK engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Audi gasoline V6 2.4 L BDV engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.

expand_moreAll Audi diesel V6 2.5 L BFC engines


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Otherwise	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m


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


Injection pump drive belt tensioning roller	26.55 lbf⋅ft26.55 lbf⋅ft36 N⋅m
Inlet camshaft wheel	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Oil pump drive chain tensioner	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Outlet camshaft wheel	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m

expand_moreToothed belt guard

expand_moreAll Audi gasoline straight-4 1.6 L ALZ engines


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.
M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Use screw-locking compound.


All Audi gasoline V6 2.4 L AMM engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.
All Audi gasoline straight-4 2.0 L AWA engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Toothed belt guard, rear
All Audi gasoline V6 2.4 L BDV engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Toothed belt guard, rear


Toothed belt guard at the bottom	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.

expand_moreToothed belt guard at the top


All Audi gasoline V6 3.0 L ASN engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Replace screws.
All Audi gasoline V6 3.0 L AVK engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Replace screws.
All Audi gasoline V6 3.0 L BBJ engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Replace screws.
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.


Toothed belt guard center	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Use screw-locking compound.

expand_moreToothed belt tensioning roller


All Audi gasoline straight-4 1.6 L ALZ engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All Audi gasoline V6 2.4 L AMM engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi gasoline V6 3.0 L ASN engines

expand_moreM10 × 65 screws


With tensioning roller eccentric	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreWith hydraulic tensioning device


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

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	45°45°45°

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	45°45°45°


All Audi gasoline straight-4 2.0 L AWA engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreAll Audi gasoline V6 3.0 L BBJ engines

expand_moreM10 × 65 screws


With tensioning roller eccentric	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreWith hydraulic tensioning device


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


All Audi diesel V6 2.5 L BCZ engines	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All Audi diesel V6 2.5 L BDG engines	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All Audi gasoline V6 2.4 L BDV engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All Audi diesel V6 2.5 L BFC engines	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All other modifications	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m

expand_moreEngine lubrication

expand_moreOil cooler


All Audi gasoline straight-4 2.0 L ALT engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws.
All Audi gasoline V6 2.4 L AMM engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 3.0 L ASN engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 3.0 L AVK engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline straight-4 2.0 L AWA engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All Audi gasoline V6 2.4 L BDV engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil drain plug


All Audi diesel V6 2.5 L BCZ engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi diesel V6 2.5 L BDG engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Audi diesel V6 2.5 L BFC engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil filter housing

expand_moreAll Audi diesel V6 2.5 L BFC engines


Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Otherwise	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Tighten cross-wise.

expand_moreAll other modifications


First stage	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Use new screws.
Second stage	90°90°90°
Tighten cross-wise.
Cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil lines

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


M6	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
use only property class 10.9
Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Union nuts	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


M6	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
use only property class 10.9
Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Union nuts	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m


All Audi diesel V6 2.5 L BCZ engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All Audi diesel V6 2.5 L BDG engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All Audi diesel V6 2.5 L BFC engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll other modifications


Screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Union nuts	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreOil pump chain wheel


All Audi gasoline V6 2.4 L AMM engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


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

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


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

expand_moreAll Audi gasoline straight-4 2.0 L AWA engines


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


All Audi gasoline V6 2.4 L BDV engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreOil sump

expand_moreAll Audi gasoline straight-4 2.0 L ALT engines


M10	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M7	12.54 lbf⋅ft12.54 lbf⋅ft17 N⋅m
Gradually tighten screws crosswise.

expand_moreAll Audi gasoline V6 2.4 L AMM engines

expand_moreM7


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreM8


Oil sump top part	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_moreAll Audi gasoline V6 3.0 L ASN engines

expand_moreAt the gearbox


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


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

expand_moreOn the engine block (M7)


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreOn the engine block (M8)


Oil sump top part	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll Audi gasoline V6 3.0 L BBJ engines

expand_moreAt the gearbox


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


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

expand_moreOn the engine block (M7)


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreOn the engine block (M8)


Oil sump top part	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Audi diesel V6 2.5 L BFC engines

expand_moreAt the sealing flange (M6)


Oil sump top part	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAt the gearbox


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

expand_moreM7


Oil sump top part	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m


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

expand_moreOn the engine block (M6)


Oil sump top part	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m

expand_moreAll other modifications


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Gradually tighten screws crosswise.

expand_moreEngine management


Charge air pressure sensor	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Crankshaft sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreGlow plugs


All Audi diesel V6 2.5 L BCZ engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All Audi diesel V6 2.5 L BDG engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All Audi diesel V6 2.5 L BFC engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m

expand_moreAll other modifications


Ceramic glow plug	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Metal glow plug	11.06 lbf⋅ft11.06 lbf⋅ft15 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	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
on the engine block

expand_moreEngine mounting

expand_moreAt the crossmember


Nuts	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


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

expand_moreSubframe


M10 × 70 screws	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Replace screws.

expand_moreM12 × 110 screws


First stage	81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Use new screw.
Second stage	90°90°90°

expand_moreTorque arm

expand_moreAll Audi gasoline V6 2.4 L AMM engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi gasoline V6 3.0 L ASN engines


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


All Audi diesel straight-4 1.9 L AVB engines	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
All Audi diesel straight-4 1.9 L AVF engines	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
All Audi diesel straight-4 1.9 L AWX engines	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreAll other modifications


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreExhaust system

expand_moreCatalytic converter

expand_moreAll Audi gasoline straight-4 1.8 L BFB engines


At the turbocharger	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace seals and nuts.


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

expand_moreExhaust manifold


All Audi gasoline straight-4 1.8 L AMB engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace nuts.
All Audi gasoline straight-4 1.8 L BEX engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace nuts.
All Audi gasoline straight-4 1.8 L BFB engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace nuts.
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace the nuts and use fitting paste


Exhaust pipe	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace nuts.
Exhaust pipe bracket	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Primary catalytic converter	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Replace seals and nuts.

expand_moreFuel supply

expand_moreFuel filter bracket

expand_moreAll Audi diesel straight-4 1.9 L AVB engines


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Audi diesel straight-4 1.9 L AVF engines


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


All Audi diesel V6 2.5 L BCZ engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
All Audi diesel V6 2.5 L BDG engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
All Audi diesel V6 2.5 L BFC engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
All other modifications	10.62 lbf⋅in10.62 lbf⋅in1.2 N⋅m

expand_moreIgnition system


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

expand_moreStart system

expand_moreStarter


All Audi gasoline V6 2.4 L AMM engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 3.0 L ASN engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 3.0 L AVK engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 3.0 L BBJ engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi diesel V6 2.5 L BCZ engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi diesel V6 2.5 L BDG engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi gasoline V6 2.4 L BDV engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Audi diesel V6 2.5 L BFC engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll other modifications


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

2003 Audi A4 B6 Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Audi A4 B6 model years

Suggest edit