2005 Opel Astra Wagon engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	7.38 lbf⋅ft7.38 lbf⋅ft10 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 diesel straight-4 1.7 L Z 17 DTL engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreIntake manifold support

expand_moreAll other modifications


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


All Opel diesel straight-4 1.7 L Z 17 DTL engines	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary drive belt tensioner

expand_moreAll Opel gasoline straight-4 1.4 L Z 14 XEP engines


M10	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 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 diesel straight-4 1.7 L Z 17 DTL engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAir-conditioning compressor


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	18.44 lbf⋅ft18.44 lbf⋅ft25 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 diesel straight-4 1.7 L Z 17 DTL engines	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAir-conditioning compressor bracket

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


M10 nuts	33.93 lbf⋅ft33.93 lbf⋅ft46 N⋅m
M10 screws	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m
M14 screws	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m


All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAir-conditioning compressor pressure line


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.

expand_moreAlternator

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


M10	33.93 lbf⋅ft33.93 lbf⋅ft46 N⋅m
M8	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m


All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGenerator bracket


All other modifications	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


Injection pump drive wheel	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreExhaust gas return cooler


1.7 CDTI with diesel straight-4 1.7 L 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM engine (2003.4–2009.7)	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Replace sealing rings.

expand_moreExhaust gas return valve


All Opel diesel straight-4 1.7 L Z 17 DTL engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Replace sealing rings.
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFuel-distributing pipe


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

expand_moreHigh-pressure line


1.7 CDTI with diesel straight-4 1.7 L 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM engine (2003.4–2009.7)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreHigh-pressure pump pulley


1.7 CDTI with diesel straight-4 1.7 L 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM engine (2003.4–2009.7)	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m

expand_moreInjection hoses


All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection nozzle (injector)

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Second stage	slacken
Third stage	23.6 lbf⋅ft23.6 lbf⋅ft32 N⋅m

expand_moreAll other modifications


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


Injection pump	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCharging

expand_moreCharge air pipes


All other modifications	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreTurbo charger

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


On exhaust manifold	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Replace seals and nuts.

expand_moreTurbocharger oil feed line

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


At the turbocharger	15.49 lbf⋅ft15.49 lbf⋅ft21 N⋅m
Replace sealing rings.
On the engine block	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Replace sealing rings.

expand_moreAll other modifications

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_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 1.7 L Z 17 DTL engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws with the screw- locking compound.

expand_moreCoolant pump pulley


All Opel diesel straight-4 1.7 L Z 17 DTL engines	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Fan wheel	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreRadiator mounting


Bottom	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


M6	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
M8	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m


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

expand_moreCylinder head screws

expand_moreOpel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM

Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM.


First stage	28.76 lbf⋅ft28.76 lbf⋅ft39 N⋅m
Use new screws See figure 1.
Second stage	60°60°60°
Third stage	60°60°60°

expand_moreOpel gasoline straight-4 1.4 L Z 14 XEP 89 HP at 5600 RPM, 125 N⋅m at 4000 RPM


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 1.
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 diesel straight-4 1.7 L Z 17 DTL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreOpel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	100°100°100°
Third stage	15°15°15°

expand_moreOpel gasoline straight-4 1.4 L Z 14 XEP 89 HP at 5600 RPM, 125 N⋅m at 4000 RPM


First stage	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
Use new screws.
Second stage	60°60°60°
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_moreAll other modifications


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

expand_moreCrankshaft central screws

expand_moreAll Opel gasoline straight-4 1.4 L Z 14 XEP engines


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Use new screw.
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°


All Opel diesel straight-4 1.7 L Z 17 DTL engines	144.56 lbf⋅ft144.56 lbf⋅ft196 N⋅m

expand_moreAll other modifications


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_moreCrankshaft pulley


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFlywheel

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


First stage	21.39 lbf⋅ft21.39 lbf⋅ft29 N⋅m
Clean the thread, use new screws and screw-locking compound.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreAll other modifications


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

expand_moreMain bearing


Opel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM	64.91 lbf⋅ft64.91 lbf⋅ft88 N⋅m

expand_moreOpel gasoline straight-4 1.4 L Z 14 XEP 89 HP at 5600 RPM, 125 N⋅m at 4000 RPM

expand_moreM6


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Second stage	60°60°60°

expand_moreM8


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	60°60°60°

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

expand_moreCamshaft drive belt deflection pulley


All Opel gasoline straight-4 1.6 L Z 16 XEP engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTL engines	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_moreAll other modifications


Inlet camshaft	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Outlet camshaft	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCamshaft timing chain guide rail


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


Camshaft timing chain slip rail	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use screw-locking compound.
Camshaft timing chain tensioner	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCamshaft timing chain tensioning rail


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing gear


Opel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM	47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m

expand_moreOpel gasoline straight-4 1.4 L Z 14 XEP 89 HP at 5600 RPM, 125 N⋅m at 4000 RPM


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screw.
Second stage	60°60°60°

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


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


Chain tensioner locking screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Control drive chain guide rail	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreTiming case cover

expand_moreAll Opel gasoline straight-4 1.4 L Z 14 XEP engines


M10	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreToothed belt guard at the bottom


Opel gasoline straight-4 1.6 L Z 16 XEP 102 HP	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Opel diesel straight-4 1.7 L Z 17 DTL 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt guard at the top


All Opel diesel straight-4 1.7 L Z 17 DTL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt tensioning roller


All Opel diesel straight-4 1.7 L Z 17 DTL engines	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreToothed belt tightener


All Opel diesel straight-4 1.7 L Z 17 DTL engines	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m

expand_moreEngine lubrication

expand_moreOil cooler lines

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 diesel straight-4 1.7 L Z 17 DTL engines


Aluminium screws for engines with number from 1493405	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Up to engine number 1493404, steel screws	57.53 lbf⋅ft57.53 lbf⋅ft78 N⋅m
Replace sealing rings.


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

expand_moreOil filter


All Opel diesel straight-4 1.7 L Z 17 DTL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Lubricate the seal with engine oil.
All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Slightly oil sealing lips.

expand_moreOil filter housing


All Opel diesel straight-4 1.7 L Z 17 DTL engines	81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Replace sealing rings.
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil lines

expand_moreAll other modifications


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

expand_moreOil pressure sensor


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTL engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 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 diesel straight-4 1.7 L Z 17 DTL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreOil pump chain wheel

expand_more1.7 CDTI with diesel straight-4 1.7 L 79 HP at 4400 RPM, 170 N⋅m at 1800 RPM engine (2003.4–2009.7)


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Replace screws.
Second stage	Wait 60 seconds.
Third stage	Unscrew nut(s).
Fourth stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreOil sump

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTL engines


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Oil sump lower part	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Oil sump top part	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


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_moreEngine management

expand_moreCamshaft sensor


All Opel diesel straight-4 1.7 L Z 17 DTL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m


Charge air pressure sensor	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCrankshaft sensor


All Opel diesel straight-4 1.7 L Z 17 DTL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGlow plugs


All Opel diesel straight-4 1.7 L Z 17 DTL engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreKnock sensor


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 other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use assembly paste

expand_moreEngine mounting

expand_moreEngine bracket

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


All Opel diesel straight-4 1.7 L Z 17 DTL engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications


On engine mounting	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 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


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreExhaust manifold


All Opel gasoline straight-4 1.4 L Z 14 XEP engines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTL engines	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m
Replace sealing rings.
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreExhaust manifold heat shields


All other modifications	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreExhaust pipe


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 1.4 L Z 14 XEP engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


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

expand_moreFuel supply


Fuel filter housing	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreFuel lines


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

expand_moreIgnition system

expand_moreSpark plugs


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

expand_moreStart system

expand_moreStarter


All Opel diesel straight-4 1.7 L Z 17 DTL engines	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2005 Opel Astra Wagon 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 Wagon 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 2005 Opel Astra Wagon you're not only saving money, but also also improving your technical skills and learning something new.

2005 Opel Astra Wagon generations

In 2005 Opel offered 2 generations of the Astra Wagon. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

H

Delta Platform

2005 Opel Astra Wagon G facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2005 Opel Astra Wagon generations

H

Opel Astra Wagon G facelift model years

Suggest edit