2004 Opel Astra Coupe engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold

expand_moreAll Opel diesel straight-4 2.2 L Y 22 DTR engines


Lower section of intake manifold	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.
Upper section of intake manifold	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


Lower section of intake manifold	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.
Upper section of intake manifold	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All Opel gasoline straight-4 1.8 L Z 18 XE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screws or nuts
All Opel gasoline straight-4 2.2 L Z 22 SE engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Use new screws or nuts

expand_moreIntake manifold support

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


On intake manifold	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Support on cylinder head	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary drive belt tensioner


All Opel diesel straight-4 2.2 L Y 22 DTR engines	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XEP engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XE engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All Opel gasoline straight-4 2.2 L Z 22 SE engines	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m

expand_moreAll other modifications


With air-conditioning	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAir-conditioning compressor


All Opel diesel straight-4 2.2 L Y 22 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


Front	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Rear	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAir-conditioning compressor bracket


Opel gasoline straight-4 1.8 L Z 18 XE 123 HP	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Opel gasoline straight-4 2.0 L Z 20 LET 189 HP	25.81–31.72 lbf⋅ft25.81–31.72 lbf⋅ft35–43 N⋅m
Opel gasoline straight-4 2.0 L Z 20 LET 197 HP	25.81–31.72 lbf⋅ft25.81–31.72 lbf⋅ft35–43 N⋅m


Air-conditioning compressor pressure line	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.

expand_moreAlternator

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


Bottom	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Top	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreAll other modifications


Bottom	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


Generator bracket	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_morePower steering pump bracket


At the subframe	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreHydraulic lines at the servo-steering pump


Manufacturer Delphi	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Manufacturer TRW	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreServo steering pump


At the bracket	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m

expand_moreCarburetion

expand_moreExhaust gas return valve

expand_moreExhaust recirculation pipe

expand_moreFuel-distributing pipe


All Opel gasoline straight-4 1.6 L Z 16 XEP engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


At the exhaust manifold	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All other modifications	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreInjection hoses


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection nozzle (injector)

expand_more2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)


First stage	hand-screwed
Second stage	360°360°360°

expand_moreInjection pump


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCharging


Charge air pipes	2.58 lbf⋅ft2.58 lbf⋅ft3.5 N⋅m

expand_moreTurbocharger oil feed line

expand_moreAt the turbocharger


Support	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Otherwise	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace sealing rings.

expand_moreOn the engine block


Support	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Otherwise	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


Union nuts	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreTurbocharger oil return line


At the turbocharger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace sealing rings.
On the engine block	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace sealing rings.

expand_moreCooling system

expand_moreCoolant drain plug


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

expand_moreCoolant pump


All Opel diesel straight-4 2.2 L Y 22 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XEP engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws with the screw- locking compound.
All Opel gasoline straight-4 2.2 L Z 22 SE engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCoolant pump pulley


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFan wheel

expand_moreRadiator mounting


Bottom	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


All Opel diesel straight-4 2.2 L Y 22 DTR engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines


Guide bearing	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Otherwise	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m


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

expand_moreCylinder head screws

expand_moreOpel diesel straight-4 2.2 L Y 22 DTR 123 HP

Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 2.2 L Y 22 DTR 123 HP.


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws. See figure 1.
Second stage	65°65°65°
Third stage	65°65°65°
Fourth stage	65°65°65°
Fifth stage	65°65°65°
Sixth stage	15°15°15°

expand_moreOpel gasoline straight-4 2.2 L Z 22 SE 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM

expand_moreM10

Figure 2. Cylinder head, Cylinder head screws, Opel gasoline straight-4 2.2 L Z 22 SE 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM, M10.


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws. See figure 2.
Second stage	75°75°75°
Third stage	75°75°75°
Fourth stage	15°15°15°

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 189 HP

Figure 3. Cylinder head, Cylinder head screws, Opel gasoline straight-4 2.0 L Z 20 LET 189 HP.


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_moreValve cover


All Opel gasoline straight-4 2.2 L Z 22 SE engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreBalance shaft gear wheel

expand_more2.2 16V with gasoline straight-4 2.2 L 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM engine (2000.9–2005.5)


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	30°30°30°

expand_moreConnecting rod bearing

expand_moreOpel diesel straight-4 2.2 L Y 22 DTR 123 HP


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 2.2 L Z 22 SE 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	50°50°50°
Third stage	50°50°50°
Fourth stage	10°10°10°

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 189 HP


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use new screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	30°30°30°

expand_moreCrankcase ventilation

expand_more1.6 16V with gasoline straight-4 1.6 L 102 HP engine (2000.3–2005.5)


Crankcase ventilation pipe	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new seals.

expand_moreCrankshaft central screws

expand_moreAll Opel diesel straight-4 2.2 L Y 22 DTR engines


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Second stage	75°75°75°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Use new screw.
Second stage	40–50°40–50°40–50°

expand_moreCrankshaft pulley


Opel gasoline straight-4 2.0 L Z 20 LET 189 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Opel gasoline straight-4 2.0 L Z 20 LET 197 HP	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreDrive plate


1.8 16V with gasoline straight-4 1.8 L 123 HP engine (2000.9–2005.5)	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.

expand_moreFlywheel

expand_moreAll Opel diesel straight-4 2.2 L Y 22 DTR engines


First stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines


First stage	39.09 lbf⋅ft39.09 lbf⋅ft53 N⋅m
Clean the thread, use new screws and screw-locking compound.
Second stage	25°25°25°

expand_moreAll other modifications


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws. Use screw-locking compound.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_moreOpel gasoline straight-4 1.6 L Z 16 XEP 102 HP


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreOpel diesel straight-4 2.2 L Y 22 DTR 123 HP


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 2.2 L Z 22 SE 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM

expand_moreM10


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	70°70°70°
Third stage	15°15°15°


M8	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreEngine control


Camshaft drive belt deflection pulley	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCamshaft timing chain guide rail


All Opel diesel straight-4 2.2 L Y 22 DTR engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 2.2 L Z 22 SE engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCamshaft timing chain slip rail


2.2 16V with gasoline straight-4 2.2 L 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM engine (2000.9–2005.5)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use screw-locking compound.

expand_moreCamshaft timing chain tensioning rail


All Opel diesel straight-4 2.2 L Y 22 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 2.2 L Z 22 SE engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCamshaft timing gear

expand_moreOpel diesel straight-4 2.2 L Y 22 DTR 123 HP


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	30°30°30°

expand_moreOpel gasoline straight-4 1.8 L Z 18 XE 123 HP


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 2.2 L Z 22 SE 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM


First stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreChain tensioner

expand_more2.2 16V with gasoline straight-4 2.2 L 145 HP at 5800 RPM, 203 N⋅m at 4000 RPM engine (2000.9–2005.5)


Balance shaft timing chain	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Camshaft timing chain	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Clean the thread.

expand_moreChain tensioner locking screws


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreInlet camshaft wheel

expand_moreOutlet camshaft wheel

expand_moreTiming case cover


All Opel diesel straight-4 2.2 L Y 22 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 2.2 L Z 22 SE engines	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m

expand_moreToothed belt guard


1.8 16V with gasoline straight-4 1.8 L 123 HP engine (2000.9–2005.5)	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt guard at the bottom


All Opel gasoline straight-4 1.8 L Z 18 XE engines	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreToothed belt guard at the top


Opel gasoline straight-4 2.0 L Z 20 LET 189 HP	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Opel gasoline straight-4 2.0 L Z 20 LET 197 HP	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m


Toothed belt tensioning roller	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Toothed belt tightener	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil cooler


On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil drain plug

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


Aluminium oil sump (Torx screws)	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Aluminium oil sump (hexagon-head screws)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Sheet-steel sump	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


Torx screws	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
With hexagon-head screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace sealing rings.

expand_moreOil filter


Oil filter cover	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Slightly oil sealing lips.

expand_moreOil filter housing


All Opel diesel straight-4 2.2 L Y 22 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


On the engine block	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil lines

expand_moreOpel diesel straight-4 2.2 L Y 22 DTR 123 HP


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 189 HP

expand_moreOil feed lines


Turbo charger union nuts	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.

expand_moreOil feed lines at the turbo charger


At the bracket	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreReturn line


Turbo charger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace sealing rings.

expand_moreReturn line at the turbo charger


Banjo screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace sealing rings.

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP

expand_moreOil feed lines


Turbo charger union nuts	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.

expand_moreOil feed lines at the turbo charger


At the bracket	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreReturn line


Turbo charger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace sealing rings.

expand_moreReturn line at the turbo charger


Banjo screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace sealing rings.

expand_moreOil pressure sensor


All Opel gasoline straight-4 1.8 L Z 18 XE engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreOil pump


All Opel gasoline straight-4 1.6 L Z 16 XEP engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XE engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreOil sump

expand_moreAll Opel diesel straight-4 2.2 L Y 22 DTR engines

expand_moreAt the gearbox


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


On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines


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

expand_moreAll other modifications


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreOil sump lower part


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws and nuts.
Second stage	30°30°30°


Oil sump top part	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine management

expand_moreCamshaft sensor


All Opel gasoline straight-4 1.8 L Z 18 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreCrankshaft sensor


All Opel diesel straight-4 2.2 L Y 22 DTR engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XEP engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGlow plugs


2.2 DTI with diesel straight-4 2.2 L 123 HP engine (2002.9–2005.5)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreKnock sensor


All Opel gasoline straight-4 2.2 L Z 22 SE engines	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreLambda sensor

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines


Lambda sensor downstream of catalytic converter	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Lambda sensors in front of catalytic converter	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket

expand_moreAll Opel diesel straight-4 2.2 L Y 22 DTR engines


On engine mounting	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines

expand_moreOn the engine block


Right	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines


On the engine block	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreEngine mounting

expand_moreAll Opel gasoline straight-4 1.6 L Z 16 XEP engines

expand_moreOn the engine block


Front	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m


Right long screws	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Right short screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll Opel gasoline straight-4 2.2 L Z 22 SE engines

expand_moreAt the gearbox


Front	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreOn chassis


Left	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Right	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreOn front axle


Front	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll other modifications


On chassis	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.
On engine bracket	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.

expand_moreSubframe


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreExhaust system

expand_moreCatalytic converter

expand_moreOpel gasoline straight-4 1.8 L Z 18 XE 123 HP

expand_moreAt the cylinder head


First stage	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Second stage	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 189 HP


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace bolts.

expand_moreOpel gasoline straight-4 2.0 L Z 20 LET 197 HP


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace bolts.

expand_moreExhaust manifold


All Opel diesel straight-4 2.2 L Y 22 DTR engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.
All Opel gasoline straight-4 1.6 L Z 16 XEP engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.
All Opel gasoline straight-4 1.8 L Z 18 XE engines	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace screws and nuts.
All Opel gasoline straight-4 2.2 L Z 22 SE engines	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace nuts.

expand_moreAll other modifications


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Note correct order of tensioning.
Second stage	Wait 5 minutes.
Replace the nuts and use fitting paste
Third stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreExhaust manifold heat shields


All Opel gasoline straight-4 1.8 L Z 18 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreExhaust pipe


All Opel gasoline straight-4 1.8 L Z 18 XE engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.
All Opel gasoline straight-4 2.2 L Z 22 SE engines	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
Replace nuts.
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Exhaust pipe bracket	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreExhaust pipe rear


All Opel gasoline straight-4 1.8 L Z 18 XE engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace nuts.

expand_moreAll other modifications


M8	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m


Exhaust system middle heat protection plate	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreFuel supply

expand_moreFuel lines


All Opel gasoline straight-4 1.6 L Z 16 XEP engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All Opel gasoline straight-4 2.2 L Z 22 SE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


All Opel gasoline straight-4 2.2 L Z 22 SE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreStart system

expand_moreStarter


All Opel diesel straight-4 2.2 L Y 22 DTR engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XEP engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L Z 18 XE engines


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


All Opel gasoline straight-4 2.2 L Z 22 SE engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2004 Opel Astra Coupe 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 Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

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

Service Intervals

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Astra Coupe 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 2004 Opel Astra Coupe you're not only saving money, but also also improving your technical skills and learning something new.

2004 Opel Astra Coupe G facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Opel Astra Coupe G facelift model years

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