MOT tyres and wheels

Tyres are more than a tread-depth check

The MOT tyre inspection considers tread, condition, fitment and other requirements in the DVSA manual. For most cars and light vans the primary tread grooves must be at least 1.6mm deep across the central three-quarters of the tread and around the full circumference. Damage, exposed structure, unsuitable tyres or other defects can still cause a problem even when tread is above the minimum.

Check tread properly

Use a tread-depth gauge and measure inner, centre and outer areas at more than one point around each tyre. The legal threshold is not a maintenance target. If one shoulder is much lower than the rest, investigate alignment, pressure or suspension rather than simply fitting another tyre and repeating the wear.

Condition and compatibility

Look for bulges, cuts, cracking, exposed cords, objects in the tread, distortion and signs of running underinflated. Tyres on the same axle must meet applicable compatibility requirements. Size, construction, load capability and vehicle-specific requirements matter as well as whether the tyre physically fits the wheel.

Wheels and TPMS

Wheels are checked for security and relevant defects. TPMS is also part of the inspection where the rules apply to that vehicle. A TPMS warning should trigger a real pressure and condition check, not simply a dashboard reset.

Before replacing anything

If wear is abnormal, identify the cause. A new tyre will not fix damaged suspension, incorrect geometry, a leaking valve or a bent wheel. TyreDeck’s health and local-services sections can help route the next step, but a physical inspection is needed where condition is uncertain.

What to do next

Use this guide to prepare and ask better questions, not as a remote diagnosis. If a safety-critical defect is suspected, avoid unnecessary driving and arrange a competent physical inspection.