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Checking tyre condition Opel Astra 2004 - 2008 Diesel 1.7 CDTi

OnDemand step-by-step maintenance & repair BETA

Opel Astra 2004 - 2008  | 1.7 CDTi Checking tyre condition

  • time 10 minutes
  • difficulty 1
The original tyres have tread wear safety bands (B), which will appear when the tread depth reaches approximately 1.6 mm. The band positions are indicated by a triangular mark on the tyre sidewall (A)
Alternatively, tread wear can be monitored with an inexpensive device known as a tread depth indicator gauge
Tyre shoulder wear is caused by underinflation, incorrect wheel camber (worn suspension parts), or hard cornering!
Tyre centre wear is caused by overinflation
Uneven tyre wear is caused by unbalanced wheels, worn/broken suspension parts, or incorrect wheel alignment. If you need to change a wheel, click below
- Close + Open

Roadside wheel change

Warning: Do not change a wheel in a situation where you risk being hit by other traffic. On busy roads, try to stop in a lay-by or a gateway. Be wary of passing traffic while changing the wheel – it is easy to become distracted by the job in hand.
Lift the floor covering and unscrew the spare wheel clamp nut. Lift out the spare wheel.
Remove the tools from the carrier stored beneath the spare wheel.
On models with steel wheels, use the special tool to pull the wheel trim from the wheel. On models with alloy wheels, use the screwdriver provided inserted at the wheel bolt holes to prise off the trim.
Slacken each wheel bolt by half a turn.
Locate the jack head below the jacking point nearest the wheel to be changed; the jacking point is indicated by an arrow in the sill. Turn the handle until the base of the jack touches the ground ensuring that the jack is vertical. Raise the vehicle until the wheel is clear of the ground. If the tyre is flat make sure that the vehicle is raised sufficiently to allow the spare wheel to be fitted.
Remove the bolts and lift the wheel from the vehicle. Place it beneath the sill as a precaution against the jack failing. Fit the spare wheel and tighten the bolts moderately with the wheel brace.
Lower the vehicle to the ground, then finally tighten the wheel bolts in a diagonal sequence. Refit the wheel trim. Note that the wheel bolts should be tightened to 110 Nm (81 Ibf ft) at the earliest opportunity.
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