A puncture may be repairable only after the tyre is removed and inspected. Sidewall/shoulder damage and damage caused by running flat can rule out repair.
What to check
A nail in the tread does not automatically mean the tyre can be repaired.
Sealant or a temporary mobility kit does not prove a permanent repair is possible.
If pressure drops rapidly or the tyre looks distorted, stop as soon as it is safe.
Repairability cannot be confirmed from the outside
Location and size matter, but so does internal damage caused after pressure was lost. A competent repair assessment normally requires the tyre to be removed from the wheel and inspected internally.
Temporary mobility is not a permanent repair
Sealant and emergency kits can help move a vehicle in limited circumstances, but follow the tyre, vehicle and kit instructions. Tell the fitter if sealant has been used.
TyreDeck can help you spot warning signs, but it cannot inspect the tyre internally, measure damage, verify pressure calibration or certify that a tyre is safe to drive on. If you are unsure, avoid unnecessary driving and arrange a competent physical inspection.
What to do next
If the vehicle should not be driven, look for a mobile fitting or recovery option rather than travelling on a suspect tyre.
Sources and review
- Jurisdiction
- United Kingdom
- Last verified
- 2026-08-29
- Primary sources
- The Highway Code / GOV.UK
DVSA MOT inspection manual