How to Change a Flat Tyre Safely: A Step-by-Step Guide

A flat tyre rarely arrives at a convenient time. Knowing how to swap in the spare (or a space-saver) yourself can save you an hour of waiting for roadside assistance, and it is a skill every driver should practise at least once before they actually need it.

Park safely first

Your safety matters more than your schedule. Pull onto a firm, level surface as far from moving traffic as you can, switch on the hazard lights, and apply the handbrake. If you have passengers, ask them to step out and stand well away from the road. Place the warning triangle about 50 metres behind the car in urban areas, or 150 metres on a highway. If you are on a slope, chock the wheel diagonally opposite the flat with a stone or a wooden block so the car cannot roll.

Gather your tools

Most cars carry a spare wheel, a jack, and a wheel wrench under the boot floor. Check that the spare is inflated before you start — a flat spare is no help. Loosen (but do not remove) the wheel nuts by one turn while the car is still on the ground; the weight of the car stops the wheel spinning and gives you leverage.

Lift and swap

Position the jack on the reinforced jacking point nearest the flat tyre, which is usually marked on the sill in your owner’s manual. Raise the car until the tyre clears the ground by a couple of centimetres, then remove the nuts and lift the wheel straight off. Slide the spare on, line up the holes, and tighten the nuts by hand in a criss-cross pattern so the wheel seats evenly.

Lower and finish

Lower the car until the wheel touches the ground, then tighten the nuts fully — again in a criss-cross or star pattern, never in a circle. Overtightening can warp the brake disc, so use firm, even pressure rather than standing on the wrench. Stow the flat tyre and tools, and check the spare’s pressure again before driving.

Know your spare’s limits

• Full-size spare: drive normally, but get the puncture repaired soon.
• Space-saver (temporary) spare: usually limited to around 80 km/h and a short distance; it is a “get to a tyre shop” wheel, not a permanent replacement.
• No spare (many modern cars): you may have a sealant-and-inflator kit instead — read the instructions before you are stranded.

A few minutes of practice in your driveway now means a calm, controlled ten-minute fix when it happens for real.