2012 Vauxhall Astra Sedan Sixth generation (MK6) Engine Fastener Tightening Specifications

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Condition Value
expand_moreAir intake system
expand_moreIntake manifold
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 18.44 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 18.44 lbf⋅ft
Tighten screws from the inside outwards.
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 18.44 lbf⋅ft
All other modifications 17.7 lbf⋅ft
expand_moreIntake manifold support
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTC engines 17.7 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTE engines 17.7 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTJ engines 17.7 lbf⋅ft
expand_moreAuxiliary assemblies
expand_moreAuxiliary drive belt deflection pulley
1.6 SIDI with gasoline straight-4 1.6 L 168 HP engine (2012.12–) 18.44 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 36.88 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
M10 40.57 lbf⋅ft
M8 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 40.57 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 40.57 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 40.57 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 16.23 lbf⋅ft
All other modifications 36.14 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 36.88 lbf⋅ft
Air-conditioning compressor 16.23 lbf⋅ft
expand_moreAir-conditioning compressor bracket
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTE engines
M10 33.19 lbf⋅ft
M8 17.7 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 36.88 lbf⋅ft
All other modifications 16.23 lbf⋅ft
expand_moreAir-conditioning compressor pressure line
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 6.64 lbf⋅ft
All other modifications 14.01 lbf⋅ft
expand_moreAlternator
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 25.81 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 25.81 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 25.81 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 25.81 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 16.23 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 44.25 lbf⋅ft
expand_moreAll other modifications
M10 25.81 lbf⋅ft
M8 16.23 lbf⋅ft
Alternator pulley 59 lbf⋅ft
expand_moreGenerator bracket
M10 35.4 lbf⋅ft
M14 50.15 lbf⋅ft
Power steering pump bracket 16.23 lbf⋅ft
expand_moreHydraulic lines at the servo-steering pump
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 15.49 lbf⋅ft
Banjo bolts.
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 33.19 lbf⋅ft
Replace sealing rings.
All Vauxhall diesel straight-4 1.7 L A 17 DTF engines 15.49 lbf⋅ft
Banjo bolts.
All Vauxhall diesel straight-4 1.7 L A 17 DTS engines 15.49 lbf⋅ft
Banjo bolts.
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 33.19 lbf⋅ft
Replace sealing rings.
expand_moreAll other modifications
Banjo screws 33.19 lbf⋅ft
Servo steering pump 16.23 lbf⋅ft
expand_moreVacuum pump
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 7.38 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
First stage 3.69 lbf⋅ft
Replace screws.
Second stage 50°
All other modifications 17.7 lbf⋅ft
expand_moreCarburetion
Exhaust gas return valve 21.39 lbf⋅ft
expand_moreFuel-distributing pipe
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.16 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.16 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.16 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
Figure 1. Carburetion, Fuel-distributing pipe.
Figure 1. Carburetion, Fuel-distributing pipe.
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 7.38 lbf⋅ft
See figure 1.
All Vauxhall diesel straight-4 1.7 L A 17 DTF engines 17.7 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTS engines 17.7 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreHigh-pressure line
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
Union nuts 22.13 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreHigh-pressure pump
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 8.11 lbf⋅ft
Screws need to be loosened or tightened in steps of 180°.
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
M10 36.88 lbf⋅ft
M8 18.44 lbf⋅ft
All other modifications 13.28 lbf⋅ft
expand_moreHigh-pressure pump pulley
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 36.88 lbf⋅ft
All other modifications 50.89 lbf⋅ft
Injection hoses 18.44 lbf⋅ft
expand_moreInjection nozzle (injector)
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 3.69 lbf⋅ft
Replace screws.
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 18.44 lbf⋅ft
expand_moreAll other modifications
First stage 29.5 lbf⋅ft
Second stage Loosen screw(s).
Third stage 23.6 lbf⋅ft
expand_moreInjection pump
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 11.06 lbf⋅ft
expand_moreCharging
expand_moreTurbo charger
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 18.44 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
expand_moreAt the cylinder head
Figure 2. Charging, Turbo charger, Vauxhall gasoline straight-4 1.4 L A 14 NET, At the cylinder head.
Figure 2. Charging, Turbo charger, Vauxhall gasoline straight-4 1.4 L A 14 NET, At the cylinder head.
First stage 5.9 lbf⋅ft
See figure 2.
Second stage 5.9 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 1.48 lbf⋅ft
Replace nuts.
Second stage 5.9 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
At the cylinder head 14.75 lbf⋅ft
tighten gradually cross-wise
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
expand_moreOn exhaust manifold
First stage 11.06 lbf⋅ft
Second stage 20.65 lbf⋅ft
expand_moreAll other modifications
First stage 17.7 lbf⋅ft
Second stage 35.4 lbf⋅ft
expand_moreTurbocharger bracket
1.6 SIDI with gasoline straight-4 1.6 L 168 HP engine (2012.12–) 18.44 lbf⋅ft
expand_moreTurbocharger coolant feed line
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
Banjo screws 22.13 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
Banjo screws 25.81 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
Banjo screws 14.75 lbf⋅ft
expand_moreTurbocharger coolant return line
expand_more1.6 SIDI with gasoline straight-4 1.6 L 168 HP engine (2012.12–)
Pressure tube connection 17.7 lbf⋅ft
expand_moreTurbocharger oil feed line
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
Banjo screws 14.75 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
Banjo screws 22.13 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
Pressure tube connection 17.7 lbf⋅ft
expand_moreAll other modifications
Banjo screws 15.49 lbf⋅ft
expand_moreTurbocharger oil return line
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 7.38 lbf⋅ft
expand_moreCooling system
expand_moreCoolant pump
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 6.64 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
expand_moreScrews 1
First stage 5.9 lbf⋅ft
expand_moreScrews 2
Second stage 30°
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 6.64 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 18.44 lbf⋅ft
All other modifications 17.7 lbf⋅ft
expand_moreCoolant pump pulley
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 6.64 lbf⋅ft
All other modifications 11.06 lbf⋅ft
expand_moreRadiator mounting
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 16.23 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 XER engines
Top 16.23 lbf⋅ft
expand_moreCylinder head
expand_moreCamshaft bearing
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
expand_moreScrews 1 – 8
Figure 3. Cylinder head, Camshaft bearing, Vauxhall gasoline straight-4 1.6 L A 16 LET, Screws 1 – 8.
Figure 3. Cylinder head, Camshaft bearing, Vauxhall gasoline straight-4 1.6 L A 16 LET, Screws 1 – 8.
First stage 5.9 lbf⋅ft
Note correct order of tensioning. See figure 3.
expand_moreScrews 9 – 12
Second stage 1.48 lbf⋅ft
Third stage 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 6.64 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTF engines 19.91 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTS engines 19.91 lbf⋅ft
expand_moreAll other modifications
expand_moreAt the cylinder head
Figure 4. Cylinder head, Camshaft bearing, All other modifications, At the cylinder head.
Figure 4. Cylinder head, Camshaft bearing, All other modifications, At the cylinder head.
Bearing casing 16.23 lbf⋅ft
Note correct order of tensioning. See figure 4.
Figure 5. Cylinder head, Camshaft bearing, All other modifications.
Figure 5. Cylinder head, Camshaft bearing, All other modifications.
Bearing cap 19.91 lbf⋅ft
Note correct order of tensioning. See figure 5.
expand_moreCylinder head screws
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
Figure 6. Cylinder head, Cylinder head screws, Vauxhall diesel straight-4 1.2 L A 13 DTE.
Figure 6. Cylinder head, Cylinder head screws, Vauxhall diesel straight-4 1.2 L A 13 DTE.
First stage 29.5 lbf⋅ft
Replace screws. See figure 6.
Second stage 90°
Third stage 90°
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
Figure 7. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.4 L A 14 NET.
Figure 7. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.4 L A 14 NET.
First stage 25.81 lbf⋅ft
Replace screws. See figure 7.
Second stage 180°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
Figure 8. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.6 L A 16 LET.
Figure 8. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.6 L A 16 LET.
First stage 18.44 lbf⋅ft
Replace screws. See figure 8.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 45°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
First stage 14.75 lbf⋅ft
Replace screws. See figure 8.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 45°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 18.44 lbf⋅ft
Replace screws. See figure 8.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
expand_moreRibe screws
Figure 9. Cylinder head, Cylinder head screws, Vauxhall diesel straight-4 2.0 L A 20 DTR, Ribe screws.
Figure 9. Cylinder head, Cylinder head screws, Vauxhall diesel straight-4 2.0 L A 20 DTR, Ribe screws.
First stage 14.75 lbf⋅ft
Replace screws. See figure 9.
Second stage 47.94 lbf⋅ft
Third stage 90°
Fourth stage 90°
Fifth stage 90°
expand_moreTorx screws
First stage 14.75 lbf⋅ft
Replace screws. See figure 9.
Second stage 47.94 lbf⋅ft
Third stage 90°
Fourth stage 90°
Fifth stage 90°
Sixth stage 90°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 90°
Third stage 90°
expand_moreValve cover
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
expand_moreBearing casing (M7)
First stage 8.85 lbf⋅ft
Note correct order of tensioning.
Third stage 13.28 lbf⋅ft
expand_moreBearing casing (M8)
Second stage 11.06 lbf⋅ft
Fourth stage 18.44 lbf⋅ft
Figure 10. Cylinder head, Valve cover.
Figure 10. Cylinder head, Valve cover.
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
See figure 10.
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
See figure 10.
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
See figure 10.
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
See figure 10.
All other modifications 7.38 lbf⋅ft
Note correct order of tensioning.
expand_moreEngine block
expand_moreConnecting rod bearing
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 40°
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 18.44 lbf⋅ft
Replace screws.
Second stage 45°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 25.81 lbf⋅ft
Replace screws.
Second stage 45°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 33.19 lbf⋅ft
Replace screws.
Second stage 60°
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
First stage 18.44 lbf⋅ft
Second stage 60°
expand_moreAll other modifications
First stage 18.44 lbf⋅ft
Replace nuts.
Second stage 100°
Third stage 15°
expand_moreCrankshaft central screws
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
First stage 36.88 lbf⋅ft
Use new screw. (left-hand thread)
Second stage 90°
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 110.63 lbf⋅ft
Replace screws.
Second stage 45°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 70.07 lbf⋅ft
Replace screws.
Second stage 45°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
First stage 70.07 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 184.39 lbf⋅ft
Replace screws.
Second stage 60°
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 250.77 lbf⋅ft
Left-hand thread
All other modifications 144.56 lbf⋅ft
expand_moreCrankshaft pulley
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 18.44 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 110.63 lbf⋅ft
Second stage 60°
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreDrive plate
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 25.81 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 44.25 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 44.25 lbf⋅ft
Replace screws.
expand_moreEngine block closure screws
1.4 Turbo with gasoline straight-4 1.4 L 138 HP engine (2012.6–) 29.5 lbf⋅ft
expand_moreFlywheel
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
First stage 11.06 lbf⋅ft
Retap thread in holes and use new screws.
Second stage 35°
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 45°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
First stage 25.81 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 29.5 lbf⋅ft
Replace screws.
Second stage 60°
Tighten cross-wise.
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 118.01 lbf⋅ft
Replace screws.
expand_moreAll other modifications
First stage 62.69 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
expand_moreMain bearing
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
expand_moreM10
Figure 11. Engine block, Main bearing, Vauxhall diesel straight-4 1.2 L A 13 DTE, M10.
Figure 11. Engine block, Main bearing, Vauxhall diesel straight-4 1.2 L A 13 DTE, M10.
First stage 14.75 lbf⋅ft
Replace screws. See figure 11.
Second stage 80°
M8 22.13 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
expand_moreM6
First stage 7.38 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreM8
First stage 18.44 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 45°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
expand_moreM10
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 120°
Third stage 15°
expand_moreM8
Fourth stage 18.44 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
First stage 18.44 lbf⋅ft
Second stage 100°
expand_moreAll other modifications
First stage 28.76 lbf⋅ft
Replace screws.
Second stage 60°
Vibration damper 14.75 lbf⋅ft
expand_moreEngine control
expand_moreBottom part of the control unit housing
1.6 SIDI with gasoline straight-4 1.6 L 168 HP engine (2012.12–) 7.38 lbf⋅ft
expand_moreCamshaft adjuster
Camshaft adjuster valve 5.9 lbf⋅ft
expand_moreCamshaft drive belt deflection pulley
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 120°
Third stage 15°
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 36.88 lbf⋅ft
All other modifications 59 lbf⋅ft
expand_moreCamshaft timing chain guide rail
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 6.64 lbf⋅ft
expand_moreCamshaft timing chain tensioner
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 6.64 lbf⋅ft
expand_moreCamshaft timing chain tensioning rail
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 18.44 lbf⋅ft
expand_moreCamshaft timing gear
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 110.63 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTF engines 81.87 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTS engines 81.87 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 88.51 lbf⋅ft
expand_moreAll other modifications
M12 81.87 lbf⋅ft
expand_moreChain tensioner
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 6.64 lbf⋅ft
expand_moreControl drive chain guide rail
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 6.64 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 5.16 lbf⋅ft
expand_moreControl drive chain tensioner
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 7.38 lbf⋅ft
expand_moreControl drive chain tensioning rail
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 18.44 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 14.01 lbf⋅ft
expand_moreControl drive timing chain slip rail
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 5.16 lbf⋅ft
expand_moreInlet camshaft wheel
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 150°
Third stage 15°
Cap 22.13 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 47.94 lbf⋅ft
Replace screws.
Second stage 120–135°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
expand_moreOutlet camshaft wheel
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 150°
Third stage 15°
Cap 22.13 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
First stage 47.94 lbf⋅ft
Replace screws.
Second stage 120–135°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
expand_moreTiming case cover
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
Figure 12. Engine control, Timing case cover, Vauxhall diesel straight-4 1.2 L A 13 DTE.
Figure 12. Engine control, Timing case cover, Vauxhall diesel straight-4 1.2 L A 13 DTE.
First stage 2.95 lbf⋅ft
Note correct order of tensioning. See figure 12.
Second stage 6.64 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 XER engines
M10 25.81 lbf⋅ft
M6 5.9 lbf⋅ft
expand_moreToothed belt guard
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 6.64 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreToothed belt guard at the bottom
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 4.43 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 4.43 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreToothed belt guard at the top
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 4.43 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 4.43 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreToothed belt tensioning roller
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 120°
Third stage 15°
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 18.44 lbf⋅ft
All other modifications 36.14 lbf⋅ft
expand_moreTop part of control unit housing
expand_more1.6 SIDI with gasoline straight-4 1.6 L 168 HP engine (2012.12–)
M10 25.81 lbf⋅ft
M6 7.38 lbf⋅ft
expand_moreEngine lubrication
expand_moreOil cooler
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 7.38 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
All other modifications 6.64 lbf⋅ft
expand_moreOil drain plug
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 13.28–19.91 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 10.33 lbf⋅ft
Replace sealing rings.
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 10.33 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 10.33 lbf⋅ft
Replace sealing rings.
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 10.33 lbf⋅ft
Replace sealing rings.
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 10.33 lbf⋅ft
Use new screw.
All other modifications 14.75 lbf⋅ft
Replace sealing rings.
Oil filter 18.44 lbf⋅ft
expand_moreOil filter housing
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
Oil filter cover 18.44 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
Oil filter cover 18.44 lbf⋅ft
On the engine block 16.23 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 XER engines
Oil filter cover 18.44 lbf⋅ft
On the engine block 14.75 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
Oil filter cover 18.44 lbf⋅ft
Replace sealing rings.
On the engine block 18.44 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
Oil filter cover 18.44 lbf⋅ft
Replace sealing rings.
On the engine block 16.23 lbf⋅ft
Replace sealing rings.
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTS engines
Banjo screws 81.13 lbf⋅ft
Otherwise 33.93 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 36.88 lbf⋅ft
expand_moreAll other modifications
Oil filter cover 18.44 lbf⋅ft
expand_moreOn the engine block
Banjo screws 81.13 lbf⋅ft
M10 screws 33.93 lbf⋅ft
expand_moreOil pressure sensor
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 14.75 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 25.81 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTF engines 14.75 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTS engines 14.75 lbf⋅ft
expand_moreOil pump
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 6.64 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreOil pump chain wheel
First stage 44.25 lbf⋅ft
Second stage Wait 60 seconds.
Third stage Unscrew nut(s).
Fourth stage 44.25 lbf⋅ft
expand_moreOil sump
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
First stage 2.95 lbf⋅ft
Second stage 6.64 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
On the engine block 7.38 lbf⋅ft
expand_moreWith automatic gearbox
At the gearbox 42.78 lbf⋅ft
expand_moreWith manual transmission
At the gearbox 29.5 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 XER engines
At the gearbox 29.5 lbf⋅ft
On the engine block 7.38 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
On the engine block 7.38 lbf⋅ft
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
At the gearbox 42.78 lbf⋅ft
On the engine block 7.38 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTS engines
Oil sump lower part 7.38 lbf⋅ft
expand_moreOn the engine block
Oil sump top part 7.38 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
At the gearbox 29.5 lbf⋅ft
expand_moreOn the engine block
M6 6.64 lbf⋅ft
M8 18.44 lbf⋅ft
expand_moreAll other modifications
Oil sump lower part 7.38 lbf⋅ft
Oil sump top part 7.38 lbf⋅ft
expand_moreEngine management
expand_moreCamshaft sensor
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 6.64 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 4.43 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 4.43 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 5.9 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Replace sealing rings.
expand_moreCharge air pressure sensor
1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–) 5.16 lbf⋅ft
expand_moreCrankshaft sensor
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 6.64 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 3.69 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 3.69 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 6.64 lbf⋅ft
All other modifications 7.38 lbf⋅ft
Exhaust gas temperature sensor 33.19 lbf⋅ft
expand_moreGlow plugs
All Vauxhall diesel straight-4 1.2 L A 13 DTE engines 7.38 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
expand_moreM12
With pressure sensor 8.11 lbf⋅ft
M9 7.38 lbf⋅ft
All other modifications 10.33 lbf⋅ft
expand_moreKnock sensor
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 16.23 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreLambda sensor
All Vauxhall diesel straight-4 1.7 L A 17 DTC engines 33.19 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTE engines 33.19 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTJ engines 33.19 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 33.19 lbf⋅ft
All other modifications 30.98 lbf⋅ft
expand_moreEngine mounting
expand_moreEngine bracket
expand_moreAll Vauxhall gasoline straight-4 1.4 L A 14 NET engines
First stage 44.25 lbf⋅ft
Replace screws.
Second stage 45–60°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
First stage 44.25 lbf⋅ft
Second stage 45°
Third stage 15°
expand_moreAll other modifications
On the engine block 45.73 lbf⋅ft
expand_moreEngine mounting
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XER engines
On chassis 45.73 lbf⋅ft
expand_moreOn engine bracket
First stage 36.88 lbf⋅ft
Second stage 60°
Third stage 15°
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 XHT engines
On chassis 45.73 lbf⋅ft
expand_moreOn engine bracket
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60–75°
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTE engines
On chassis 45.73 lbf⋅ft
expand_moreOn engine bracket
First stage 36.88 lbf⋅ft
Second stage 60–70°
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTS engines
On chassis 40.57 lbf⋅ft
On the engine block 36.88 lbf⋅ft
expand_moreAll other modifications
On chassis 45.73 lbf⋅ft
expand_moreOn engine bracket
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60–70°
Subframe 118.01 lbf⋅ft
Subframe stiffening plate 118.01 lbf⋅ft
expand_moreTorque arm
expand_moreAll Vauxhall gasoline straight-4 1.6 L A 16 LET engines
expand_moreAt the gearbox
expand_moreWith manual transmission
Front 73.76 lbf⋅ft
expand_moreWith automatic gearbox
Front 45.73 lbf⋅ft
expand_moreAt the subframe
Front 73.76 lbf⋅ft
Rear 81.13 lbf⋅ft
expand_moreOnto torque support bracket
Rear 73.76 lbf⋅ft
expand_moreAll other modifications
expand_moreAt the gearbox
Front 73.76 lbf⋅ft
Torque support bracket 73.76 lbf⋅ft
expand_moreExhaust system
expand_moreCatalytic converter
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 9.59 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 16.96 lbf⋅ft
Support.
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
Replace nuts.
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 42.78 lbf⋅ft
Replace nuts.
expand_moreAll other modifications
At the turbocharger 33.19 lbf⋅ft
expand_moreCatalytic converter bracket
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 16.96 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTC engines 18.44 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTE engines 18.44 lbf⋅ft
All Vauxhall diesel straight-4 1.7 L A 17 DTJ engines 18.44 lbf⋅ft
All other modifications 16.23 lbf⋅ft
expand_moreDiesel particulate filter
At the turbocharger 33.19 lbf⋅ft
expand_moreExhaust manifold
expand_moreAll Vauxhall diesel straight-4 1.2 L A 13 DTE engines
First stage 11.06 lbf⋅ft
Second stage 30°
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.4 L A 14 XER engines 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 5.9 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTS engines
Heat shields 7.38 lbf⋅ft
Otherwise 50.89 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 2.0 L A 20 DTR engines
At the cylinder head 14.75 lbf⋅ft
All other modifications 50.89 lbf⋅ft
expand_moreExhaust manifold heat shields
All Vauxhall gasoline straight-4 1.4 L A 14 NET engines 5.9 lbf⋅ft
All other modifications 7.38 lbf⋅ft
expand_moreExhaust pipe
All Vauxhall gasoline straight-4 1.6 L A 16 LET engines 16.23 lbf⋅ft
All Vauxhall gasoline straight-4 1.6 L A 16 XER engines 14.75 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTS engines
On diesel particulate filter 18.44 lbf⋅ft
expand_moreAll other modifications
Front 18.44 lbf⋅ft
Exhaust pipe bracket 16.23 lbf⋅ft
Exhaust pipe rear 16.23 lbf⋅ft
expand_moreParticle filter bracket
expand_moreSupport
M10 33.19 lbf⋅ft
M8 18.44 lbf⋅ft
Particulate filter heat protection plate 5.9 lbf⋅ft
expand_moreFuel supply
expand_moreFuel filter housing
Plastic cap 18.44 lbf⋅ft
expand_moreFuel lines
expand_more1.3 CDTI with diesel straight-4 1.2 L 94 HP engine (2012.6–)
M12 17.7 lbf⋅ft
M14 20.65 lbf⋅ft
expand_moreIgnition system
Spark plugs 18.44 lbf⋅ft
expand_moreStart system
expand_moreStarter
All Vauxhall gasoline straight-4 1.6 L A 16 XHT engines 16.23 lbf⋅ft
expand_moreAll Vauxhall diesel straight-4 1.7 L A 17 DTE engines
Screws 44.25 lbf⋅ft
Stud screws 28.03 lbf⋅ft
All Vauxhall diesel straight-4 2.0 L A 20 DTR engines 16.23 lbf⋅ft
All other modifications 18.44 lbf⋅ft

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2012 Vauxhall 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 Vauxhall 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 Vauxhall 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 2012 Vauxhall Astra Sedan you're not only saving money, but also also improving your technical skills and learning something new.

Vauxhall Astra Sedan Sixth generation (MK6) model years

Units:
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