Help with a flat tyre once you are safely off the motorway: we find the cause, then repair the tyre if it is safe to, or replace it.
If a tyre fails on a motorway, leave at the next exit or pull into a service area if the car can still be driven safely. If you have to stop, use the hard shoulder, get everyone out by the left-hand doors, wait behind the barrier and do not try a repair yourself. If you are stuck in a live lane, stay in the car with your seat belt on and call 999. We never work on the carriageway of a motorway or main road, on a hard shoulder, in a smart motorway emergency area or on a slip road.
National Highways runs this road. Its contact centre is on 0300 123 5000; in an emergency, call 999.
The road's junction list and the full Highway Code steps are on its main page, under Related pages below.
A flat tyre is not always a simple puncture. The cause can be a nail or screw, a damaged valve, a leak where the tyre meets the rim, or a bent wheel. Once the car is off the main road and parked somewhere safe and legal, do not drive it any further on the flat: a short distance can ruin the sidewall and turn a repairable puncture into a replacement.
The fitter finds the cause, then repairs the tyre if the damage allows it. If not, we tell you and quote a replacement.
When the car is parked somewhere safe and legal, such as a side street near the exit or a car park where the owner allows it, we can come to it. Tell us which junction you left at and where the car is now.
| Road | M11 London to Stansted |
|---|---|
| Operator | National Highways |
| Service areas | Birchanger Green services |
At its nearest measured point, the M11 is about 12 miles in a straight line from our only base at Brent Cross, NW2. We give you an arrival time when you call.
A flat tyre can come from a puncture, a damaged valve, a tyre pushed off its bead by a kerb or a split in the sidewall. The first job is to stop somewhere safe and not drive any further on it than you must.
Driving on a flat, even slowly, damages the tyre and can bend or crack the wheel. A short distance is often enough to turn a repairable puncture into a tyre that has to be replaced.
Get to the nearest place where it is safe to stop, switch the hazard lights on and stop there.
A tyre pressure warning light means the system has detected a drop in pressure in one or more tyres. Check all four by eye and with a gauge before driving further.
A light that flashes when the car starts and then stays on usually points to a fault in the system itself rather than a tyre.
Call or WhatsApp with where the car is, the registration and the tyre size from the sidewall. Say whether there is a usable spare.
You hear what the job involves and the options for your car. Nothing is booked until you say yes.
The fitter comes to your home, your workplace or a safe place to park, raises the car on a jack and does the job beside it.
Before the fitter leaves, the wheel is checked for security and the tyre pressure is set to the maker's figure.
“Arrived and was very kind and polite. Reassured me about changing the tyres and was quick and attentive straight away.”
“Fast and reliable.”
There is no fixed figure that suits every car, so the price is built from a few things and told to you before you decide.
The price is given on the call. The price is the same at any hour. Asking for a price does not commit you to anything.
When you compare prices, compare like with like: the same brand and pattern, the same load index and speed rating, and whether balancing and a new valve are part of the job.
A run-flat tyre has a reinforced sidewall that carries the car for a limited distance with little or no air. Because the car can feel normal, the tyre pressure warning light may be the only sign that something is wrong.
Look near the size on the sidewall for markings such as RFT, SSR, ROF, ZP or RSC in a circle.
Cars on run-flats often have no spare wheel at all, so check under the boot floor and in the handbook.
Sometimes, but less often than a standard tyre. TyreSafe does not recommend repairing run-flats, and some tyre makers advise against it, especially after the tyre has been driven without air.
The tyre comes off the rim and is checked against the maker's guidance before a repair is even considered.
Run-flat and standard tyres should not be mixed on the same car.
Switching all four to standard tyres is possible on some cars, but it leaves you unable to drive on after a puncture, so check the handbook first.
What to keep in the car for a tyre emergency
Most cars carry the wrong things for a puncture. Here is the short list that helps at the roadside, and what to check you have now.
Is it safe to drive on a flat tyre?
Driving on a flat tyre is dangerous and can wreck your wheel. Here's what happens, what to do instead, and how far you can safely go (almost nowhere).
Spare wheel vs tyre repair kit: which is better?
Many new cars come with a sealant kit instead of a spare wheel. Here's the difference, the pros and cons of each, and what to do if you have neither.
Stay safe, keep off the flat tyre and tell us where the car is. Tell us what has happened and the make and model of the vehicle.
