2007 Opel Astra Sedan engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


All Opel gasoline straight-4 1.8 L A 18 XER engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XER engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XER engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
helically from the inside out

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


All Opel diesel straight-4 1.7 L A 17 DTR engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

expand_moreAuxiliary drive belt tensioner


All Opel diesel straight-4 1.7 L A 17 DTR engines	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
All other modifications	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.

expand_moreAir-conditioning compressor


All Opel diesel straight-4 1.2 L Z 13 DTH engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAir-conditioning compressor bracket


All Opel gasoline straight-4 1.8 L A 18 XER engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XER engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All other modifications	31.72 lbf⋅ft31.72 lbf⋅ft43 N⋅m


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

expand_moreAlternator

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines


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


All Opel diesel straight-4 1.2 L Z 13 DTH engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTH 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

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines


M10	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m
M14	50.15 lbf⋅ft50.15 lbf⋅ft68 N⋅m


All Opel diesel straight-4 1.2 L Z 13 DTH engines	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreVacuum pump


All Opel diesel straight-4 1.7 L A 17 DTR engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


First stage	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
Second stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


All Opel diesel straight-4 1.7 L Z 17 DTJ engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreCarburetion

expand_moreExhaust gas return cooler


1.7 CDTi with diesel straight-4 1.7 L 99 HP at 4400 RPM, 240 N⋅m at 2300 RPM engine (2007.2–)	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreExhaust recirculation pipe


1.7 CDTi with diesel straight-4 1.7 L 99 HP at 4400 RPM, 240 N⋅m at 2300 RPM engine (2007.2–)	21.39 lbf⋅ft21.39 lbf⋅ft29 N⋅m
Replace sealing rings.


Fuel-distributing pipe	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
High-pressure pump pulley	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m
Injection hoses	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreInjection nozzle (injector)


All Opel diesel straight-4 1.2 L Z 13 DTH engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications


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_moreInjection pump


All Opel diesel straight-4 1.7 L A 17 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


M7	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m


All Opel diesel straight-4 1.7 L Z 17 DTJ engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCharging

expand_moreTurbo charger


All Opel diesel straight-4 1.2 L Z 13 DTH engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

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


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

expand_moreAll other modifications


First stage	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Replace nuts.
Second stage	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m

expand_moreTurbocharger oil feed line

expand_more1.7 CDTi with diesel straight-4 1.7 L 99 HP at 4400 RPM, 240 N⋅m at 2300 RPM engine (2007.2–)


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_moreCooling system

expand_moreCoolant pump


All Opel diesel straight-4 1.7 L A 17 DTR engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCoolant pump pulley


All Opel diesel straight-4 1.7 L A 17 DTR engines	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines

Figure 1. Cylinder head, Camshaft bearing, Opel diesel straight-4 1.7 L A 17 DTR.


Nuts	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Tighten in several steps. See figure 1.
Screws	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTH 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
helically from the inside out

expand_moreCylinder head screws

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines

Figure 2. Cylinder head, Cylinder head screws, Opel diesel straight-4 1.2 L Z 13 DTH.


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws. See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°

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

Figure 3. Cylinder head, Cylinder head screws, Opel gasoline straight-4 1.6 L Z 16 XER.


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	45°45°45°

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


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

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


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

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

Figure 4. Cylinder head, Cylinder head screws, Opel gasoline straight-4 1.8 L Z 18 XER.


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 4.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_moreAll other modifications


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

expand_moreValve cover


All Opel gasoline straight-4 1.8 L A 18 XER engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines

Figure 5. Cylinder head, Valve cover, Opel diesel straight-4 1.2 L Z 13 DTH.


M7	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
See figure 5.
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


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

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screws.
Second stage	40°40°40°

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


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 Opel diesel straight-4 1.7 L Z 17 DTH engines


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_moreAll Opel gasoline straight-4 1.8 L Z 18 XER engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace 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	100°100°100°
Third stage	25°25°25°

expand_moreCrankshaft central screws


All Opel diesel straight-4 1.2 L Z 13 DTH engines	169.64 lbf⋅ft169.64 lbf⋅ft230 N⋅m
Left-hand thread

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


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

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


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°


All other modifications	144.56 lbf⋅ft144.56 lbf⋅ft196 N⋅m

expand_moreCrankshaft pulley


All Opel diesel straight-4 1.2 L Z 13 DTH engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

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


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


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

expand_moreFlywheel


All Opel diesel straight-4 1.2 L Z 13 DTH engines	32.45 lbf⋅ft32.45 lbf⋅ft44 N⋅m
Retap thread in holes and use new screws.

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


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Clean thread and use new screws.
Second stage	30°30°30°
Third stage	15°15°15°

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


First stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Clean the thread, use new screws and screw-locking compound.
Second stage	30°30°30°
Third stage	15°15°15°

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


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

expand_moreAll other modifications


First stage	62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Retap thread in holes and use new screws.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines

expand_moreInside (M10)

Figure 6. Engine block, Main bearing, Opel diesel straight-4 1.2 L Z 13 DTH, Inside (M10).


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Use new screws. See figure 6.
Second stage	90°90°90°

expand_moreOutside


M8	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

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


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


All Opel diesel straight-4 1.7 L Z 17 DTH engines	64.91 lbf⋅ft64.91 lbf⋅ft88 N⋅m

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


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

expand_moreAll other modifications


First stage	28.76 lbf⋅ft28.76 lbf⋅ft39 N⋅m
helically from the inside out
Second stage	60°60°60°
Use new screws.

expand_moreEngine control

expand_moreCamshaft drive belt deflection pulley


All Opel gasoline straight-4 1.8 L A 18 XER engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.

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


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	120°120°120°
Third stage	15°15°15°


All Opel gasoline straight-4 1.8 L Z 18 XER engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws.
All other modifications	59 lbf⋅ft59 lbf⋅ft80 N⋅m

expand_moreCamshaft timing gear


All Opel diesel straight-4 1.2 L Z 13 DTH engines	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Drive wheel toothed belt

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


Part number 97320335	47.2 lbf⋅ft47.2 lbf⋅ft64 N⋅m
Part number 98021306	81.87 lbf⋅ft81.87 lbf⋅ft111 N⋅m

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


Locking screws	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreWith camshaft adjuster


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	150°150°150°
Third stage	15°15°15°


All other modifications	81.87 lbf⋅ft81.87 lbf⋅ft111 N⋅m

expand_moreChain tensioner


1.3 CDTi with diesel straight-4 1.2 L 89 HP engine (2007.2–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreControl drive chain guide rail


1.3 CDTi with diesel straight-4 1.2 L 89 HP engine (2007.2–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreControl drive chain tensioning rail


1.3 CDTi with diesel straight-4 1.2 L 89 HP engine (2007.2–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreInlet camshaft wheel

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


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

expand_moreCentral screws


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screw.
Second stage	150°150°150°
Third stage	15°15°15°

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


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Second stage	120°120°120°
Third stage	15°15°15°

expand_moreOutlet camshaft wheel

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


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

expand_moreCentral screws


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Use new screw.
Second stage	150°150°150°
Third stage	15°15°15°

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


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Second stage	120°120°120°
Third stage	15°15°15°

expand_moreTiming case cover


1.3 CDTi with diesel straight-4 1.2 L 89 HP engine (2007.2–)	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreToothed belt guard


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

expand_moreToothed belt guard at the bottom


All Opel gasoline straight-4 1.6 L Z 16 XER engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreToothed belt guard at the top


All Opel gasoline straight-4 1.6 L Z 16 XER engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreToothed belt tensioning roller

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


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	120°120°120°
Third stage	15°15°15°


All other modifications	36.14 lbf⋅ft36.14 lbf⋅ft49 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug


All Opel diesel straight-4 1.7 L A 17 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTH 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 Opel diesel straight-4 1.7 L Z 17 DTJ engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Replace sealing rings.

expand_moreOil filter housing

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


On the engine block	81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Otherwise	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


Oil filter cover	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreOil pump


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

expand_moreOil sump

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines


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


All Opel diesel straight-4 1.2 L Z 13 DTH engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L Z 17 DTH 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

expand_moreEngine management

expand_moreCamshaft sensor


All Opel gasoline straight-4 1.8 L A 18 XER engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
All Opel gasoline straight-4 1.6 L Z 16 XER engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel gasoline straight-4 1.8 L Z 18 XER engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace sealing rings.

expand_moreCharge air pressure sensor


All Opel diesel straight-4 1.7 L A 17 DTR engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreCrankshaft sensor


All Opel diesel straight-4 1.7 L A 17 DTR engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Opel diesel straight-4 1.2 L Z 13 DTH engines	6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTJ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll other modifications


At the bracket	3.32 lbf⋅ft3.32 lbf⋅ft4.5 N⋅m

expand_moreGlow plugs


All Opel diesel straight-4 1.2 L Z 13 DTH engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTH engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All other modifications	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m


Knock sensor	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Lambda sensor	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket


All Opel gasoline straight-4 1.6 L Z 16 XER engines	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m

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


On the engine block	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.


All Opel diesel straight-4 1.7 L Z 17 DTJ engines	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreEngine mounting

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


On chassis	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
On engine bracket	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

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


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

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

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 the left side of tje engine bracket


Right	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreOn the rear side of the front axle


Front	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll other modifications

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 engine bracket


Right	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

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_moreSubframe stiffening plate


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

expand_moreTorque arm

expand_moreAt the subframe


Bottom	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace nuts.

expand_moreAt the gearbox


Bottom	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreExhaust system

expand_moreCatalytic converter

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines


At the turbocharger	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


At the turbocharger	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreExhaust manifold


All Opel gasoline straight-4 1.8 L A 18 XER engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


First stage	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Replace screws and nuts.
Second stage	30°30°30°


All Opel gasoline straight-4 1.8 L Z 18 XER engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m

expand_moreExhaust pipe

expand_more1.7 CDTi with diesel straight-4 1.7 L 99 HP at 4400 RPM, 240 N⋅m at 2300 RPM engine (2007.2–)


On primary catalytic converter	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFuel supply

expand_moreFuel lines


All Opel diesel straight-4 1.7 L A 17 DTR engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Opel diesel straight-4 1.2 L Z 13 DTH engines


M12	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
M14	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m


All Opel diesel straight-4 1.7 L Z 17 DTJ engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L Z 17 DTR engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreIgnition system


Spark plugs	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreStart system

expand_moreStarter

expand_moreAll Opel diesel straight-4 1.7 L A 17 DTR engines


At the gearbox	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
On the engine block	28.03 lbf⋅ft28.03 lbf⋅ft38 N⋅m


All Opel diesel straight-4 1.7 L Z 17 DTH engines	28.03 lbf⋅ft28.03 lbf⋅ft38 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 2007 Opel Astra Sedan 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

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 Sedan 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 2007 Opel Astra Sedan you're not only saving money, but also also improving your technical skills and learning something new.

2007 Opel Astra Sedan generations

In 2007 Opel offered 2 generations of the Astra Sedan. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

G facelift

T Platform (T-body, GM2700, GM3000) 1979-2012

2007 Opel Astra Sedan H Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

2007 Opel Astra Sedan generations

G facelift

Opel Astra Sedan H model years

Suggest edit