Tighten new screws crosswise, use screw-locking compound.
M7
11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Tighten new screws crosswise, use screw-locking compound.
M8
20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Tighten new screws crosswise, use screw-locking compound.
Clutch slave cylinder
4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Use new screws.
Clutch slave cylinder bleeder valve
3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m
expand_moreGear shifting
expand_moreGear rod
expand_moreAdjusting screws
First stage
8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Second stage
180–225°180–225°180–225°
expand_moreSuspension front tightening torques
expand_moreFront axle brake
expand_moreBrake line
Socket unions
10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Front axle brake caliper
20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Front axle brake caliper mounting support
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Clean the thread and use screw-locking compound.
Front axle brake disc
5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m
expand_moreBrake hose
At the brake caliper
29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Replace sealing rings.
Bleed valve
7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
expand_moreFront axle suspension
expand_moreSuspension strut
On chassis
40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
expand_moreOn stub axle
First stage
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage
62.69 lbf⋅ft62.69 lbf⋅ft85 N⋅m
Second stage: 75°. Third stage: 15°.
Shock-absorber piston rod
59 lbf⋅ft59 lbf⋅ft80 N⋅m
Replace nuts.
expand_moreFront axle steering
Lower steering column joint
17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
expand_moreSteering gear
At the subframe
33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Second stage: 45°. Third stage: 15°. Use new screws.
Steering wheel
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use new screws with the screw- locking compound.
Track rod on steering gear
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Use screw-locking compound.
Track rod end on stub axle
22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Second stage: 90°. Third stage: 15°. Use new nuts.
expand_moreTrack rod end on track rod
Lock nuts
44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
expand_moreWheel suspension
expand_moreTransverse control arm
At the subframe
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage: 75°. Third stage: 15°. Use new screws.
expand_moreWheel hub wheel bearing
Wheel bearing unit
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage: 30°. Third stage: 15°. Use new screws with the screw- locking compound.
expand_moreCentral nuts
First stage
110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace nuts.
Second stage
45° detach
Third stage
184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
expand_moreFront axle drive shaft
expand_moreCentral nuts
First stage
110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace nuts.
Second stage
45° detach
Third stage
184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
Stabilizer mounting at the subframe
14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Stabiliser mounting at suspension strut
40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace nuts.
Stabiliser mounting at the stabiliser
47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace nuts.
Support joint at the stub axle
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace nuts.
Support joint at the transverse control arm
25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
expand_moreWheels and tires
Wheel attachment
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Tire pressure sensors
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
expand_moreSuspension rear tightening torques
expand_moreRear axle brake
Rear axle brake caliper
18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Rear axle brake caliper mounting support
73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Use new screws with the screw- locking compound.
Rear axle brake disc
2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
expand_moreRear axle suspension
expand_moreRear axle shock absorber
On chassis
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
On rear axle
95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
expand_moreRear axle wheel suspension
expand_moreRear axle carrier
Bearing pedestal
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage: 30°. Third stage: 15°. Use new screws.
expand_moreWheel hub wheel bearing
Wheel bearing unit
36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Second stage: 30°. Third stage: 15°. Use new nuts.
expand_moreRear axle suspension
On rear axle
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage: 60°. Third stage: 15°. Use new screws and nuts.
On chassis
66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage: 30°. Third stage: 15°. Use new screws.
expand_moreWheels and tires
Wheel attachment
81.13 lbf⋅ft81.13 lbf⋅ft110 N⋅m
Tire pressure sensors
6.64 lbf⋅ft6.64 lbf⋅ft9 N⋅m
When assembling your 2008 Opel Astra Classic Hatchback it's important to tight threaded fasteners with Opel prescribed torques using a torque wrench. If the torque values is lower then prescribed, bolt may unscrew itself and assembly may fall apart. If the torque value is higher then prescribed, bolt may simply break. The torque wrench allows you to tighten all bolts of the assembly with the same torque applied.
Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2008 Opel Astra Classic Hatchback 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.
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 Classic Hatchback 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 2008 Opel Astra Classic Hatchback you're not only saving money, but also also improving your technical skills and learning something new.