Specifications (Opel Astra H)

General parameters

Suspension type

Front suspension - Independent, with MacPherson struts, gas-filled shock absorbers and anti-roll bar

Rear suspension - Semi-independent, with torsion beam, trailing arms, coil springs and telescopic shock absorbers. On the station wagon models, a rear ride height adjustment system is installed as an additional equipment

Steering type - Rack and pinion, hydraulically powered on all models

Wheels and tires

See Specifications for Chapter "Controls and Operating Techniques" and Chapter 1.

Wheel alignment angles

Front wheels - +0°±10'

Rear wheels (Hatchback) - +0°10'^+30'_-20'

Rear wheels (Station wagon/Zafira) — +0°05'+ 30'/-20^+30'_-20'

Tightening force of threaded connections, Nm

• Front shock absorber strut mounting bolts - 85 Nm + 75° + 15°
• Upper stabilizer strut support mounting nuts 55
• Spring mounting nuts on the front shock absorber strut - 80
• Front wheel hub nuts - 150 Nm, loosen by 45° + 250 Nm
• Upper rear shock absorber mounting bolts - 90
• Lower rear shock absorber mounting bolts - 110
• Rear wheel hub assembly fastening nuts - 50 Nm + 30° + 15°
• Front subframe mounting bolts 90 Nm + 45° + 15°
• Steering wheel mounting bolt - 30
• Steering rod end mounting nuts to steering knuckle — 30 Nm + 90° + 15°
• Tie Rod End Locknuts - 60
• Front suspension ball joint mounting nuts - 100
• Wheel mounting bolts - 110

Fastening the front support of the torsion beam

• Central bolt - 90 Nm + 60° + 15°
• Bolts for fastening the support bracket to the bottom 90 Nm + 30° + 15°