How the job is done
A blowout on the A34: get safe first, then we bring the tyre.
The Oxfordshire A34 carries a steady stream of heavy lorries, and a burst at that pace, perhaps approaching Botley or passing the Chilton turn, can snatch at the steering wheel. Hold it firmly, ease off without stamping on the brake and, only while you can steer safely, signal for the next exit: Milton for Didcot, Marcham for Abingdon, Hinksey Hill for Kennington. In Birmingham, a blowout on the Walsall Road towards the Scott Arms happens at lower speed but is still dangerous among the buses.
Once off the road, make sure nobody is standing near passing traffic, then photograph the damaged tyre and send it with the size. Stranded in a live lane with the car immobile? Leave by the passenger side if it is safe, stand well back and ring 999, adding National Highways on 0300 123 5000 on the Oxfordshire section. We fit the replacement wherever you parked or were taken, and inspect the rim and the opposite tyre.
Need something else? Our pages on emergency mobile tyre fitting on the A34 and flat tyre help on the A34 explain those jobs.