You hear it before you feel it — a flap-flap-flap, or the car pulling to one side. Don't panic and don't slam the brakes. Ease off the accelerator, hold the wheel firmly, and start looking for somewhere safe to stop.

Changing a tyre isn't hard. The dangerous part is doing it in the wrong place, so most of this article is about picking your spot and staying out of traffic. The actual lifting-and-swapping bit takes about fifteen minutes once you've done it once.

First: get somewhere safe

Where you stop matters more than anything else. You want firm, level ground, well away from moving traffic. A car park, a quiet side road, or a lay-by is ideal. Never change a tyre on the traffic side of a motorway — that's genuinely dangerous, and in a lot of countries you're told to stay behind the barrier and call for recovery instead.

  • Pull as far off the road as you can — onto a verge or hard shoulder, wheels straight.
  • Turn on your hazard lights straight away.
  • Put the car in gear (or Park) and pull the handbrake on hard.
  • If you have a warning triangle, place it well behind the car — the recommended distance varies by country, so check, but further is safer.
  • Get any passengers out and stand them behind a barrier or well off the road, not in the car.
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Don't risk it on a fast road

If you're on a motorway or a busy dual carriageway with nowhere truly safe, leave the tyre. Get everyone behind the barrier and call breakdown recovery. A wheel is cheap. You are not.

What you need

Almost every car comes with the basics tucked under the boot floor or in the spare-wheel well. Before you set off on any long drive, it's worth checking they're actually there — the same way you'd check them when you plan a road trip.

  • The spare wheel (or a tyre-repair kit if your car has no spare).
  • A jack — the scissor jack that came with the car is fine.
  • A wheel brace (the L-shaped or cross-shaped spanner).
  • The locking wheel-nut key, if your car has locking nuts — no key, no change.
  • A torch, gloves, and something to kneel on. A hi-vis vest if you've got one.

How to change the wheel

  1. Loosen the wheel nuts BEFORE you lift the car. Fit the brace and turn anticlockwise — lefty-loosey. Just crack them loose, half a turn each; don't take them off yet. Use your body weight or a firm stamp if they're tight.
  2. Find the jack point and raise the car. There's a reinforced point just behind each front wheel and just in front of each rear wheel — usually a notch on the sill. Put the jack directly under it (never under plastic trim or the floor) and wind up until the flat tyre is a couple of inches off the ground.
  3. Remove the nuts and pull the wheel off. Take the loosened nuts fully off now, keeping them somewhere you won't lose them. Pull the flat wheel straight towards you and lay it flat under the car sill as a backup in case the jack fails.
  4. Fit the spare. Line up the holes and push it on. Spin the nuts on by hand and nip them up finger-tight so the wheel sits square.
  5. Lower the car and tighten properly. Take your backup wheel out, wind the jack down, then tighten the nuts firmly in a star pattern (opposite nut to opposite nut, not round in a circle). This pulls the wheel on evenly.
  6. Stow everything and check the spare's pressure as soon as you can.
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Star pattern, not circles

Tightening opposite nuts in turn seats the wheel flat against the hub. Going round in a circle can leave it sitting slightly skewed. Firm and even beats gorilla-strength on one nut.

The space-saver spare

Many cars now carry a skinny "space-saver" spare rather than a full-size one. It'll get you home, but it's not a proper tyre. Keep under the speed limit marked on it — usually around 50 mph / 80 km/h — and get the real tyre repaired or replaced quickly. Don't just forget about it for three months.

"Hi, I've had a flat and I'm on the space-saver. Can I book it in to get the tyre repaired or a new one fitted this week?"

If your car has a repair kit instead of a spare, it's a can of sealant and a small compressor — fine for a small puncture, useless for a blowout or a sidewall tear. That's the moment to call for recovery. Knowing your limits here is the same instinct as being ready for anything else that goes wrong, which is really what it means to prepare for an emergency before it happens.

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Do a dry run at home

Find your jack points, locate the wheel-nut key, and loosen one nut in your own driveway on a dry afternoon. Ten minutes now means you're not learning it for the first time in the rain at night.

Checklist

That's it. Do it once and it stops being scary. The confidence of knowing you can sort your own flat — instead of standing on a verge waiting two hours for a van — is worth the fifteen minutes it takes to learn.

Frequently asked questions

Can I drive on a flat tyre to get somewhere safer?
For a very short distance at walking pace to reach a safe spot, yes — safety comes first. But driving any real distance on a flat will destroy the tyre and can damage the wheel rim and even the brakes, which turns a cheap fix into an expensive one. Get off the road, then stop as soon as you're clear of traffic.
How tight should wheel nuts be after changing a tyre?
Firm and even, tightened in a star pattern with the car on the ground. Most cars have a specified torque figure in the handbook, and the proper tool is a torque wrench. If you tightened by hand with the brace, it's worth having them checked with a torque wrench, and always re-check them after about 20 to 50 miles as they can settle.
Where is the jack point on my car?
Look along the metal sill underneath the car, just behind the front wheels and just in front of the rear wheels — there's usually a notch, arrow, or reinforced ridge marking it. Your owner's manual shows the exact spots. Never put the jack under plastic trim, the floor pan, or a suspension arm, as it can bend or puncture them.
How fast can I drive on a space-saver spare tyre?
Space-saver spares carry a speed limit printed on them, commonly around 50 mph or 80 km/h, and they're meant only for getting you home or to a garage. They have less grip and a smaller contact patch, so take corners and braking gently. Get the proper tyre fitted as soon as you can rather than running on the space-saver for weeks.
What do I do if the wheel nuts won't budge?
Make sure you're turning anticlockwise, and use your body weight by standing on the brace or pushing down rather than pulling up. If a nut still won't move, or you suspect it's been over-tightened by a garage, stop before you round it off — call breakdown recovery. Forcing a seized nut can strip it and leave you far worse off.
Do I need a locking wheel nut key to change a tyre?
If your car has locking wheel nuts — one different-looking nut per wheel — then yes, you cannot remove that wheel without the matching key. It's usually a small socket-shaped adapter kept in the glovebox, boot, or with the tools. Check it's in the car before any long trip, because recovery services and garages often can't remove locking nuts without it either.

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