Know-how: Checking tyre pressure
How to check tyre pressure and find out what the correct tyre pressure for your car is.
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Introduction – why and how
Consult the owner’s handbook or tyre details label on the vehicle for the correct tyre pressures
Unscrew the valve dust cap from the tyre valve
Place the tyre pressure gauge onto the tyre valve stem. Firmly press the gauge down evenly on the valve stem
Check the tyre pressure reading on the gauge
If the tyres require inflating add air using a suitable inflator. It is extremely important not to over-inflate the tyres. This can be avoided by adding small amounts air between pressure checks using the gauge
Repeat this for all tyres including the spare wheel (if fitted)
Once the tyres are inflated to the correct pressure, replace the valve dust cap
Do not over-tighten. Valve dust caps prevent dirt entering and damaging the valve
Tyre pressures should be checked weekly and when tyres are cold. Warm or hot tyres may give incorrect pressure readings