Light commercial vehicles issued with a tyre advisory notice during an annual MOT are nearly twice as likely to return 12 months later carrying an item officially graded as a dangerous defect, according to new research from TyreSafe.
The study of anonymised DVSA MOT test data reveals that seven per cent of all vans that received a tyre advisory failed their subsequent test a year later with a dangerous tyre defect (1,931 out of 27,573).
By comparison, vans with no prior advisory recorded a dangerous defect rate of just 3.6 per cent across more than 109,000 recorded tests.
The risk gap is most severe on heavier commercial transport.
For Class 7 vans (3.0t to 3.5t gross vehicle weight), vehicles with an advisory were 2.11 times more likely to return with a dangerous tyre, recording a 6.3 per cent dangerous defect rate versus 3.0 per cent for clean test sheets.
Class 4 vans under three tonnes saw a 7.2 per cent failure rate following an advisory, compared to 3.8 per cent without.
Historically, more than three in ten complete tyre failures on test (31.1 per cent for Class 7 and 34.1 per cent for Class 4) had already been flagged with an advisory notice at their previous annual inspection.
The analysis comes as recent DVSA roadside enforcement figures show tyre condition remains the single biggest reason for immediate light goods vehicle prohibitions, accounting for nearly 23 per cent of all mechanical defects found during targeted stops.
For workshops and MOT testing stations, the findings expose a persistent operational blind spot among van operators, sole traders, and delivery fleets: treating an advisory notice as a clean bill of health for another 12 months.
Unlike passenger car owners who often cover predictable, lower annual mileage, light commercials operate under severe duty cycles.
Urban stop-start delivery work, heavy payload distribution, scrub from tight manoeuvring, and continuous kerb impacts rapidly accelerate tyre wear.
When a tester issues an advisory for tread approaching the legal minimum or minor outer edge wear, a working van can easily wear through that remaining rubber and expose internal cords within a matter of weeks, let alone a full test cycle.
Commenting on the findings, TyreSafe Chair Stuart Lovatt said: “An MOT tyre advisory is an early warning, and our analysis shows it is a reliable one.
“Vans that get one are almost twice as likely to have a dangerous tyre a year later. That is a risk to the driver, to everyone around them, and to the business that depends on that van.
“Fleet managers already have this information on the MOT certificate. The fix is simple: treat every tyre advisory as a job with a deadline, and make sure drivers act on their tyres every day.”
While the duty of care rests legally with the vehicle operator, the statistical reality highlighted by TyreSafe presents a clear service opportunity for workshops.
Garages frequently see van customers collect an MOT pass certificate, acknowledge the advisories, and drive away without booking remedial work.
But with commercial vehicle downtime costing fleets hundreds of pounds a day, leaving worn rubber unchecked until roadside enforcement or total failure intervenes hurts both the business and the workshop’s preventative maintenance schedule.
Why it Matters
Workshops can protect their commercial customers and recover bay revenue by tightening up post-MOT follow-up procedures:
Mileage-based re-inspection dates: Rather than letting a tyre advisory sit until the next annual test, calculate the fleet’s average weekly mileage and schedule a diary reminder for a physical tread check at 30, 60, or 90 days.
Digital health checks and photo evidence: Using video and digital inspection forms at the point of testing clearly demonstrates to time-poor business owners why an advisory needs proactive attention before tyre cords fail under load.
Reinforcing walkaround checks: Remind drivers of TyreSafe’s core ‘ACT’ checks (Air pressure, Condition, and Tread depth), ensuring tyre pressures match manufacturer load plates to prevent rapid shoulder wear.
As commercial van usage continues to grow across the UK, an MOT advisory cannot remain an afterthought filed away until next year’s test fee is due.
How does your workshop handle MOT advisories with local van and fleet clients? Do you run proactive re-check reminders, or are you seeing vans return a year later with cords showing? Let us know your thoughts.
