in your garage to make future searches easy.

Condition Value
expand_moreAir intake system
expand_moreIntake manifold
All Vauxhall gasoline straight-4 1.6 L Z 16 XEP engines 14.75 lbf⋅ft
Use new screws or nuts
expand_moreAuxiliary assemblies
expand_moreAuxiliary drive belt tensioner
All other modifications 36.88 lbf⋅ft
expand_moreCylinder head
expand_moreCamshaft bearing
All Vauxhall gasoline straight-4 1.6 L Z 16 XEP engines 5.9 lbf⋅ft
expand_moreCylinder head screws
Figure 1. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.6 L Z 16 XEP.
Figure 1. Cylinder head, Cylinder head screws, Vauxhall gasoline straight-4 1.6 L Z 16 XEP.
First stage 18.44 lbf⋅ft
Replace screws. See figure 1.
Second stage 90°
Third stage 90°
Fourth stage 45°
Valve cover 5.9 lbf⋅ft
expand_moreEngine block
expand_moreConnecting rod bearing
First stage 18.44 lbf⋅ft
Replace screws and nuts.
Second stage 30°
expand_moreCrankshaft central screws
expand_moreAll other modifications
First stage 70.07 lbf⋅ft
Use new screw.
Second stage 45°
Third stage 15°
expand_moreFlywheel
expand_moreAll other modifications
First stage 25.81 lbf⋅ft
Second stage 30°
Third stage 15°
expand_moreMain bearing
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
expand_moreEngine control
expand_moreCamshaft drive belt deflection pulley
All other modifications 18.44 lbf⋅ft
Replace screws.
expand_moreCamshaft timing gear
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
expand_moreInlet camshaft wheel
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreOutlet camshaft wheel
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
Toothed belt guard at the bottom 4.43 lbf⋅ft
Toothed belt guard at the top 4.43 lbf⋅ft
expand_moreToothed belt tensioning roller
All other modifications 14.75 lbf⋅ft
Replace screws.
expand_moreEngine lubrication
expand_moreOil drain plug
All other modifications 10.33 lbf⋅ft
expand_moreOil sump
At the gearbox 29.5 lbf⋅ft
On the engine block 7.38 lbf⋅ft
expand_moreEngine management
Camshaft sensor 4.43 lbf⋅ft
Knock sensor 14.75 lbf⋅ft
expand_moreLambda sensor
Lambda sensor downstream of catalytic converter 29.5 lbf⋅ft
Lambda sensors in front of catalytic converter 22.13 lbf⋅ft
expand_moreExhaust system
expand_moreExhaust manifold
All other modifications 16.23 lbf⋅ft
Replace screws and nuts.
expand_moreIgnition system
Spark plugs 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 2005 Vauxhall Astra TwinTop 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.

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

Vauxhall Astra TwinTop Fifth generation (MK5) model years

Units:
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