Changing a run flat tyre is like changing a regular tyre. By their very nature it should be possible to drive on a run flat tyre even after a puncture for up to 50 miles. However, if a change of tyre is required, there are a few steps that need to be carried out:
Move your vehicle to a safe location away from traffic. Turn on the hazard lights and apply the handbrake.
Check if your vehicle comes with a spare tyre, tyre jack, wheel nut wrench, and wheel chocks. Keep all these tools handy before starting to change the tyre.
Use the wheel nut wrench to loosen the wheel nuts on the flat tyre. Place the wheel chocks behind the rear wheels to prevent your vehicle from rolling back. Use the tyre jack to lift the vehicle off the ground. Remove the wheel nuts and the flat tyre.
Place the new tyre onto the wheel hub and screw in the wheel nuts. Tighten the wheel nuts as much as possible using the wheel nut wrench. Lower the vehicle back onto the ground using the tyre jack.
Ensure that the new tyre has the correct pressure by using a tyre pressure gauge. The recommended tyre pressure should be mentioned in your car’s handbook. If the pressure requires a change, do this now.
It's always a good idea to get the flat tyre checked by a professional mechanic to identify any underlying issues that caused the tyre to go flat in the first place. Remember to always drive cautiously after changing a tyre.