1998 Audi A4 Avant Quattro B5 Engine Fastener Tightening Specifications

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Condition Value
expand_moreAir intake system
expand_moreIntake manifold
Audi diesel straight-4 1.9 L AFN 109 HP 18.44 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 18.44 lbf⋅ft
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 14.75 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAuxiliary assemblies
Auxiliary drive belt deflection pulley 16.23 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
Audi diesel straight-4 1.9 L AFN 109 HP 33.19 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 33.19 lbf⋅ft
Audi gasoline straight-4 1.8 L AFY 114 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AWT 148 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APU 148 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ANB 148 HP 18.44 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AJL 177 HP 18.44 lbf⋅ft
All other modifications 40.57 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
All Audi diesel V6 2.5 L AFB engines 16.23 lbf⋅ft
All Audi diesel V6 2.5 L AKN engines 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
Use new screw.
expand_moreAir-conditioning compressor
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
Property class 10.9
expand_moreAir-conditioning compressor bracket
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
Class 10.9 22.13 lbf⋅ft
Class 8.8 screws 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
Class 10.9 22.13 lbf⋅ft
Class 8.8 screws 18.44 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
Air-conditioning compressor pressure line 18.44 lbf⋅ft
expand_moreAlternator
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
M10 29.5 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
M10 29.5 lbf⋅ft
M8 18.44 lbf⋅ft
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 14.75 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
M10 29.5 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreAll other modifications
M10 33.19 lbf⋅ft
M8 16.23 lbf⋅ft
expand_morePower steering pump bracket
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreServo pump pulley
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi gasoline V6 2.4 L APZ 161 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L ALF 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L AML 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L ARJ 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L APS 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L AGA 162 HP, 230 N⋅m 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreServo steering pump
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Audi gasoline V6 2.4 L APZ 161 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L ALF 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L AML 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L ARJ 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L APS 162 HP 16.23 lbf⋅ft
Audi gasoline V6 2.4 L AGA 162 HP, 230 N⋅m 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreTensioning device for air-conditioning compressor auxiliary drive belt
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
Tensioning roller 16.23 lbf⋅ft
Otherwise 16.23 lbf⋅ft
Support
Audi gasoline straight-4 1.8 L AJL 177 HP 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreVacuum pump
All Audi diesel V6 2.5 L AFB engines 7.38 lbf⋅ft
All Audi diesel V6 2.5 L AKN engines 7.38 lbf⋅ft
expand_moreAll other modifications
Cap 7.38 lbf⋅ft
Otherwise 14.75 lbf⋅ft
expand_moreCarburetion
Exhaust gas return cooler 7.38 lbf⋅ft
Exhaust gas return valve 18.44 lbf⋅ft
Replace sealing rings.
Exhaust recirculation pipe 18.44 lbf⋅ft
Replace sealing rings.
expand_moreInjection hoses
All Audi diesel V6 2.5 L AFB engines 22.13 lbf⋅ft
All Audi diesel straight-4 1.9 L AFN engines 18.44 lbf⋅ft
All Audi diesel V6 2.5 L AKN engines 22.13 lbf⋅ft
All Audi diesel straight-4 1.9 L AVG engines 18.44 lbf⋅ft
expand_moreInjection nozzle (injector)
expand_moreAll Audi diesel V6 2.5 L AFB engines
expand_moreAt the cylinder head
Retaining clamp 7.38 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreInjection pump
expand_moreAll Audi diesel V6 2.5 L AFB engines
On the engine block 14.75 lbf⋅ft
Otherwise 7.38 lbf⋅ft
All Audi diesel straight-4 1.9 L AFN engines 18.44 lbf⋅ft
All Audi diesel straight-4 1.9 L AVG engines 18.44 lbf⋅ft
expand_moreInjection pump pulley
All Audi diesel V6 2.5 L AFB engines 16.23 lbf⋅ft
Do not loosen the middle nut.
expand_moreAll Audi diesel straight-4 1.9 L AFN engines
expand_more1Z engine
AHU engine 33.19 lbf⋅ft
expand_moreAHH engine
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 90°
All Audi diesel V6 2.5 L AKN engines 16.23 lbf⋅ft
Do not loosen the middle nut.
expand_moreCharging
Charge air pipes 7.38 lbf⋅ft
expand_moreTurbo charger
All Audi diesel V6 2.5 L AFB engines 16.23 lbf⋅ft
Replace nuts.
expand_moreAll Audi diesel straight-4 1.9 L AFN engines
Nuts 18.44 lbf⋅ft
Replace nuts.
Screws 22.13 lbf⋅ft
Replace screws.
All Audi diesel V6 2.5 L AKN engines 16.23 lbf⋅ft
Replace nuts.
expand_moreAll other modifications
On exhaust manifold 25.81 lbf⋅ft
Replace screws. Use hot screw paste.
expand_moreTurbocharger bracket
Audi diesel straight-4 1.9 L AFN 109 HP 14.75 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 14.75 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 150 HP
At the turbocharger 29.5 lbf⋅ft
On the engine block 33.19 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
At the turbocharger 29.5 lbf⋅ft
On the engine block 33.19 lbf⋅ft
expand_moreAll other modifications
expand_moreAEB, ANB, APU, and ARK engines
At the turbocharger 29.5 lbf⋅ft
On the engine block 33.19 lbf⋅ft
expand_moreAWT engine
At the turbocharger 22.13 lbf⋅ft
On the engine block 18.44 lbf⋅ft
expand_moreTurbocharger coolant feed line
Banjo screws 25.81 lbf⋅ft
expand_moreTurbocharger coolant return line
Union nuts 22.13 lbf⋅ft
expand_moreTurbocharger oil feed line
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
Support 7.38 lbf⋅ft
Otherwise 18.44 lbf⋅ft
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
At the oil filter 7.38 lbf⋅ft
Replace sealing rings.
expand_moreAt the turbocharger
Banjo screws 11.06 lbf⋅ft
Replace sealing rings.
expand_moreAudi gasoline straight-4 1.8 L AEB 150 HP
Union nuts 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
Union nuts 18.44 lbf⋅ft
expand_moreAll other modifications
expand_moreAEB, ANB, APU, and ARK engines
Union nuts 18.44 lbf⋅ft
expand_moreAWT engine
Banjo screws 22.13 lbf⋅ft
Union nuts 16.96 lbf⋅ft
expand_moreTurbocharger oil return line
expand_moreAll Audi diesel straight-4 1.9 L AFN engines
At the turbocharger 7.38 lbf⋅ft
Replace sealing rings.
On the engine block 22.13 lbf⋅ft
Replace sealing rings.
All other modifications 7.38 lbf⋅ft
Replace sealing rings.
expand_moreCooling system
expand_moreCoolant pump
Audi gasoline straight-4 1.8 L AFY 114 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AWT 148 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APU 148 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ANB 148 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AJL 177 HP 18.44 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Coolant pump pulley 18.44 lbf⋅ft
Fan wheel 7.38 lbf⋅ft
Replace screws.
expand_moreViscous fan bracket
expand_moreAll Audi diesel V6 2.5 L AFB engines
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
M8 16.23 lbf⋅ft
expand_moreAll other modifications
M6 7.38 lbf⋅ft
M8 16.23 lbf⋅ft
expand_moreViscous fan clutch
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
Screw 1 27.29 lbf⋅ft
Torques applies only in combination with special tool.
Screw 2 51.63 lbf⋅ft
Without special tool
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
M10 29.5 lbf⋅ft
M6 7.38 lbf⋅ft
Audi gasoline V6 2.4 L APZ 161 HP 27.29 lbf⋅ft
Audi gasoline V6 2.4 L APS 162 HP 27.29 lbf⋅ft
Audi gasoline V6 2.4 L ARJ 162 HP 27.29 lbf⋅ft
Audi gasoline V6 2.4 L AML 162 HP 27.29 lbf⋅ft
Audi gasoline V6 2.4 L ALF 162 HP 27.29 lbf⋅ft
Audi gasoline V6 2.4 L AGA 162 HP, 230 N⋅m 27.29 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
M10 29.5 lbf⋅ft
M6 7.38 lbf⋅ft
All other modifications 51.63 lbf⋅ft
expand_moreCylinder head
expand_moreCamshaft bearing
Audi diesel straight-4 1.9 L AFN 109 HP 14.75 lbf⋅ft
First tighten bearing covers 2 and 4
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 14.75 lbf⋅ft
First tighten bearing covers 2 and 4
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
Nuts 11.06 lbf⋅ft
Screws 7.38 lbf⋅ft
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 12.54 lbf⋅ft
First tighten bearing covers 1 and 3
All other modifications 7.38 lbf⋅ft
First tighten bearing covers 2 and 4 alternately and in steps
expand_moreCylinder head screws
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
First stage 29.5 lbf⋅ft
Use new screws.
Second stage 44.25 lbf⋅ft
Third stage 90°
Fourth stage 90°
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
First stage 25.81 lbf⋅ft
Use new screws.
Second stage 44.25 lbf⋅ft
Third stage 90°
Fourth stage 90°
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
First stage 44.25 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
expand_moreAWT engine
First stage 29.5 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
expand_moreAll other modifications
First stage 44.25 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
expand_moreCylinder head screws shank length (new)
Audi diesel straight-4 1.9 L AFN 109 HP 4.53 in
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 4.53 in
Audi gasoline straight-4 1.8 L AFY 114 HP 3.78 in
Audi gasoline straight-4 1.8 L ARG 123 HP 3.78 in
Audi gasoline straight-4 1.8 L APT 123 HP 3.78 in
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 3.78 in
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 6.1 in
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 6.1 in
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
AWT engine 4.53 in
Otherwise 3.78 in
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 5.41 in
Audi gasoline straight-4 1.8 L AJL 177 HP 3.78 in
All other modifications 5.24 in
expand_moreRocker bridge
First stage 14.75 lbf⋅ft
Use new screws.
Second stage 90°
Tighten in steps from inside to outside.
Valve cover 7.38 lbf⋅ft
Alternately, first inside and then outside
expand_moreEngine block
expand_moreConnecting rod bearing
expand_moreAudi gasoline V6 2.4 L APZ 161 HP
expand_moreCracked connecting rod (M8)
First stage 22.13 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreCracked connecting rod (M8,5)
First stage 29.5 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreSawed connecting rod
First stage 22.13 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreAudi gasoline V6 2.8 L ACK 190 HP at 3200 RPM, 280 N⋅m at 3200 RPM
expand_moreCracked connecting rod (M8)
First stage 22.13 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreCracked connecting rod (M8,5)
First stage 29.5 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreSawed connecting rod
First stage 22.13 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreAll other modifications
First stage 22.13 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreCrankshaft central screws
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
First stage 147.51 lbf⋅ft
Replace screws.
Second stage 90°
Third stage 90°
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
First stage 147.51 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
expand_moreAudi gasoline V6 2.4 L APZ 161 HP
First stage 147.51 lbf⋅ft
Use new screws.
Second stage 180°
expand_moreAudi gasoline V6 2.8 L ACK 190 HP at 3200 RPM, 280 N⋅m at 3200 RPM
First stage 147.51 lbf⋅ft
Use new screws.
Second stage 180°
expand_moreAll other modifications
First stage 66.38 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreCrankshaft pulley
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
Class 10.9 25.81 lbf⋅ft
Class 8.8 screws 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AFY 114 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L ARG 123 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L APT 123 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L ANB 148 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L APU 148 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L AWT 148 HP 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 29.5 lbf⋅ft
use only property class 10.9
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AJL 177 HP 29.5 lbf⋅ft
use only property class 10.9
All other modifications 16.23 lbf⋅ft
expand_moreDrive plate
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
Engine block closure screws 7.38 lbf⋅ft
expand_moreFlywheel
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreDual-mass flywheel
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreDual-mass flywheel
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreAll other modifications
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 180°
expand_moreMain bearing
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
First stage 47.94 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
First stage 47.94 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
expand_moreLateral-fitting screw
Fifth stage 20.65 lbf⋅ft
expand_moreScrews 1 – 8
First stage 44.25 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreScrews 9 – 16
Third stage 44.25 lbf⋅ft
Fourth stage 90°
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
First stage 47.94 lbf⋅ft
Replace screws and nuts.
Second stage 90°
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
First stage 44.25 lbf⋅ft
Use new screws.
Second stage 180°
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
First stage 47.94 lbf⋅ft
Use new screws.
Second stage 90°
expand_moreAll other modifications
First stage Tighten by hand
Use new screws.
Second stage 44.25 lbf⋅ft
Tighten the screws cross-wise from inside to outside.
Third stage 90°
Lateral-fitting screw 18.44 lbf⋅ft
expand_moreVibration damper
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
Class 10.9 25.81 lbf⋅ft
Class 8.8 screws 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
Class 10.9 29.5 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
Class 10.9 29.5 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
Class 10.9 29.5 lbf⋅ft
All other modifications 16.23 lbf⋅ft
expand_moreEngine control
Camshaft adjuster 7.38 lbf⋅ft
expand_moreCamshaft drive belt deflection pulley
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 33.19 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 33.19 lbf⋅ft
Audi gasoline V6 2.4 L APZ 161 HP 31.72 lbf⋅ft
Audi gasoline V6 2.4 L ALF 162 HP 31.72 lbf⋅ft
Audi gasoline V6 2.4 L ARJ 162 HP 31.72 lbf⋅ft
Audi gasoline V6 2.4 L AML 162 HP 31.72 lbf⋅ft
Audi gasoline V6 2.4 L APS 162 HP 31.72 lbf⋅ft
Audi gasoline V6 2.4 L AGA 162 HP, 230 N⋅m 31.72 lbf⋅ft
Audi gasoline V6 2.8 L AHA 190 HP 31.72 lbf⋅ft
Audi gasoline V6 2.8 L APR 190 HP 31.72 lbf⋅ft
Audi gasoline V6 2.8 L AQD 190 HP 31.72 lbf⋅ft
Audi gasoline V6 2.8 L AMX 190 HP 31.72 lbf⋅ft
Audi gasoline V6 2.8 L ACK 190 HP at 3200 RPM, 280 N⋅m at 3200 RPM 31.72 lbf⋅ft
Audi gasoline V6 2.8 L ALG 190 HP at 6000 RPM, 280 N⋅m at 3200 RPM 31.72 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreCamshaft timing gear
Audi diesel straight-4 1.9 L AFN 109 HP 33.19 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 33.19 lbf⋅ft
Audi gasoline straight-4 1.8 L AFY 114 HP 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L ANB 148 HP 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L AWT 148 HP 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L APU 148 HP 47.94 lbf⋅ft
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
Central screws 55.32 lbf⋅ft
Wheel 16.23 lbf⋅ft
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 47.94 lbf⋅ft
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 47.94 lbf⋅ft
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
Left 51.63 lbf⋅ft
Replace bolt.
Right 51.63 lbf⋅ft
Replace bolt.
Audi gasoline straight-4 1.8 L AJL 177 HP 47.94 lbf⋅ft
expand_moreAll other modifications
Left 40.57 lbf⋅ft
Right 40.57 lbf⋅ft
expand_moreDrive belt tensioner device
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
M6 7.38 lbf⋅ft
Otherwise 30.98 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Use screw-locking compound.
Injection pump drive belt tensioning roller 26.55 lbf⋅ft
Oil pump drive chain tensioner 11.8 lbf⋅ft
do not dismantle
Toothed belt guard 7.38 lbf⋅ft
Use screw-locking compound.
expand_moreToothed belt guard at the bottom
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
M6 7.38 lbf⋅ft
M8 14.75 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
M6 7.38 lbf⋅ft
M8 14.75 lbf⋅ft
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
expand_moreLeft
Top 16.23 lbf⋅ft
Otherwise 7.38 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
M6 7.38 lbf⋅ft
M8 14.75 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Use screw-locking compound.
Toothed belt guard at the top 7.38 lbf⋅ft
Toothed belt guard center 7.38 lbf⋅ft
Use screw-locking compound.
expand_moreToothed belt tensioning roller
Audi diesel straight-4 1.9 L AFN 109 HP 14.75 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 14.75 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
Nuts 7.38 lbf⋅ft
Screws 18.44 lbf⋅ft
Otherwise 29.5 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
Nuts 7.38 lbf⋅ft
Screws 18.44 lbf⋅ft
Otherwise 29.5 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 30.98 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 30.98 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
Nuts 7.38 lbf⋅ft
Otherwise 29.5 lbf⋅ft
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
M6 16.23 lbf⋅ft
M8 31.72 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
Nuts 7.38 lbf⋅ft
Otherwise 29.5 lbf⋅ft
All other modifications 16.23 lbf⋅ft
expand_moreToothed belt tightener
All Audi diesel straight-4 1.9 L AFN engines 18.44 lbf⋅ft
All Audi diesel straight-4 1.9 L AVG engines 18.44 lbf⋅ft
expand_moreEngine lubrication
expand_moreOil cooler
Audi gasoline V6 2.4 L APZ 161 HP 22.13 lbf⋅ft
Audi gasoline V6 2.4 L AML 162 HP 22.13 lbf⋅ft
Audi gasoline V6 2.4 L ARJ 162 HP 22.13 lbf⋅ft
Audi gasoline V6 2.4 L APS 162 HP 22.13 lbf⋅ft
Audi gasoline V6 2.4 L ALF 162 HP 22.13 lbf⋅ft
Audi gasoline V6 2.4 L AGA 162 HP, 230 N⋅m 22.13 lbf⋅ft
Audi gasoline V6 2.8 L APR 190 HP 22.13 lbf⋅ft
Audi gasoline V6 2.8 L AMX 190 HP 22.13 lbf⋅ft
Audi gasoline V6 2.8 L AQD 190 HP 22.13 lbf⋅ft
Audi gasoline V6 2.8 L AHA 190 HP 22.13 lbf⋅ft
Audi gasoline V6 2.8 L ACK 190 HP at 3200 RPM, 280 N⋅m at 3200 RPM 22.13 lbf⋅ft
Audi gasoline V6 2.8 L ALG 190 HP at 6000 RPM, 280 N⋅m at 3200 RPM 22.13 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreOil drain plug
Audi gasoline straight-4 1.8 L AFY 114 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 36.88 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 18.44 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 18.44 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
M14 22.13 lbf⋅ft
M26 36.88 lbf⋅ft
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 29.5 lbf⋅ft
All other modifications 22.13 lbf⋅ft
expand_moreOil filter housing
expand_moreAll Audi diesel V6 2.5 L AFB engines
Cap 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreOil lines
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 11.06 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 11.06 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreOil pump chain wheel
All Audi diesel V6 2.5 L AFB engines 16.23 lbf⋅ft
All Audi diesel V6 2.5 L AKN engines 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreOil sump
expand_moreAudi diesel straight-4 1.9 L AFN 109 HP
expand_moreAt the gearbox
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreOn the engine block
M10 33.19 lbf⋅ft
Otherwise 13.28 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAudi gasoline straight-4 1.8 L AFY 114 HP
expand_moreAt the gearbox
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAudi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m
expand_moreAt the gearbox
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
expand_moreAt the sealing flange (M6)
Oil sump top part 7.38 lbf⋅ft
expand_moreAt the gearbox
Oil sump top part 33.19 lbf⋅ft
expand_moreM7
Oil sump top part 11.8 lbf⋅ft
Oil sump lower part 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreOn the engine block (M6)
Oil sump top part 9.59 lbf⋅ft
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
Gradually tighten screws crosswise.
M7 11.06 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAudi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m
Oil sump lower part 7.38 lbf⋅ft
Gradually tighten screws crosswise.
Oil sump top part 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAudi gasoline straight-4 1.8 L AJL 177 HP
M10 33.19 lbf⋅ft
M6 7.38 lbf⋅ft
Gradually tighten screws crosswise.
M7 11.06 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreAll other modifications
expand_moreAt the gearbox
Oil sump top part 33.19 lbf⋅ft
Oil sump lower part 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreOn the engine block (M6)
Oil sump top part 7.38 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreOn the engine block (M7)
Oil sump top part 11.8 lbf⋅ft
Gradually tighten screws crosswise.
expand_moreOn the engine block (M8)
Oil sump top part 16.23 lbf⋅ft
expand_moreEngine management
expand_moreCamshaft sensor
expand_moreAudi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m
Cap 7.38 lbf⋅ft
Otherwise 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AJL 177 HP 7.38 lbf⋅ft
expand_moreAll other modifications
M6 7.38 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreCharge air pressure sensor
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 7.38 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 7.38 lbf⋅ft
All other modifications 2.21 lbf⋅ft
Crankshaft sensor 7.38 lbf⋅ft
expand_moreGlow plugs
All Audi diesel V6 2.5 L AFB engines 13.28 lbf⋅ft
All Audi diesel V6 2.5 L AKN engines 13.28 lbf⋅ft
All other modifications 11.06 lbf⋅ft
Knock sensor 14.75 lbf⋅ft
expand_moreLambda sensor
Audi gasoline straight-4 1.8 L AFY 114 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 36.88 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 36.88 lbf⋅ft
All other modifications 40.57 lbf⋅ft
expand_moreEngine mounting
Engine bracket 33.19 lbf⋅ft
on the engine block
expand_moreEngine mounting
All other modifications 18.44 lbf⋅ft
at subframe
expand_moreSubframe
expand_moreM10
With ribbing 55.32 lbf⋅ft
Replace screws.
Without ribbing 22.13 lbf⋅ft
Replace screws.
expand_moreM12 × 110 screws
First stage 81.13 lbf⋅ft
Replace screws.
Second stage 90°
expand_moreSubframe diagonal strut
First stage 29.5 lbf⋅ft
Second stage 90°
expand_moreSubframe stiffening plate
expand_moreM8 × 25 screws
Ribbed screw head. 55.32 lbf⋅ft
Otherwise 22.13 lbf⋅ft
expand_moreTorque arm
Audi diesel straight-4 1.9 L AFN 109 HP 18.44 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L AFY 114 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APT 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ARG 123 HP 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L APU 148 HP 20.65 lbf⋅ft
Audi gasoline straight-4 1.8 L AWT 148 HP 20.65 lbf⋅ft
Audi gasoline straight-4 1.8 L ANB 148 HP 20.65 lbf⋅ft
expand_moreAudi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 20.65 lbf⋅ft
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 20.65 lbf⋅ft
Audi gasoline straight-4 1.8 L AJL 177 HP 20.65 lbf⋅ft
expand_moreAll other modifications
M10 29.5 lbf⋅ft
M8 × 22 screws 20.65 lbf⋅ft
expand_moreExhaust system
expand_moreCatalytic converter
All Audi diesel V6 2.5 L AFB engines 18.44 lbf⋅ft
Replace seals and nuts.
expand_moreAll Audi diesel straight-4 1.9 L AFN engines
At the turbocharger 18.44 lbf⋅ft
Replace seals and nuts.
All Audi diesel V6 2.5 L AKN engines 18.44 lbf⋅ft
Replace seals and nuts.
expand_moreAll other modifications
At the turbocharger 22.13 lbf⋅ft
Replace seals and nuts.
expand_moreExhaust manifold
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Replace nuts.
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 16.23 lbf⋅ft
Replace nuts.
Audi gasoline V6 2.6 L ABC 148 HP, 225 N⋅m 14.75 lbf⋅ft
Replace nuts.
All other modifications 18.44 lbf⋅ft
Replace nuts.
Exhaust manifold heat shields 18.44 lbf⋅ft
Replace nuts.
expand_moreExhaust pipe
Audi gasoline straight-4 1.8 L AFY 114 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L ARG 123 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L APT 123 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L ADR 123 HP, 173 N⋅m 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L APU 148 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L AWT 148 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L ANB 148 HP 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 22.13 lbf⋅ft
Replace nuts.
Audi gasoline straight-4 1.8 L AJL 177 HP 22.13 lbf⋅ft
Replace nuts.
All other modifications 18.44 lbf⋅ft
Replace nuts.
Exhaust pipe bracket 18.44 lbf⋅ft
expand_moreFuel supply
expand_moreFuel filter bracket
Audi diesel straight-4 1.9 L AFN 109 HP 11.06 lbf⋅ft
Audi diesel straight-4 1.9 L AVG 109 HP at 4150 RPM, 235 N⋅m at 1900 RPM 11.06 lbf⋅ft
Audi gasoline straight-4 1.8 L AWT 148 HP 14.75 lbf⋅ft
Audi gasoline straight-4 1.8 L ANB 148 HP 14.75 lbf⋅ft
Audi gasoline straight-4 1.8 L APU 148 HP 14.75 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 7.38 lbf⋅ft
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 7.38 lbf⋅ft
Audi gasoline straight-4 1.8 L ARK 148 HP at 5700 RPM, 210 N⋅m at 1750 RPM 14.75 lbf⋅ft
Audi gasoline straight-4 1.8 L AEB 148 HP, 210 N⋅m 14.75 lbf⋅ft
All other modifications 10.62 lbf⋅in
expand_moreFuel lines
expand_moreAll other modifications
M12 14.75 lbf⋅ft
Banjo bolts.
M14 22.13 lbf⋅ft
Banjo bolts.
expand_moreIgnition system
Spark plugs 22.13 lbf⋅ft
expand_moreStart system
expand_moreStarter
Audi diesel V6 2.5 L AFB 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 11.8 lbf⋅ft
Audi diesel V6 2.5 L AKN 148 HP at 4000 RPM, 310 N⋅m at 1500 RPM 11.8 lbf⋅ft
All other modifications 47.94 lbf⋅ft

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1998 Audi A4 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.

Table of Contents

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 A4 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 1998 Audi A4 Avant Quattro you're not only saving money, but also also improving your technical skills and learning something new.

Audi A4 Avant Quattro B5 model years

Units:
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