Tyre pressure system is MOT fail


A faulty Tyre Pressure Monitoring System (TPMS) now results in automatic MOT failure – even if your tyres are in good condition and correctly inflated.

That’s the message from Tyresafe, the UK’s tyre safety association, which has produced a video to promote the benefits of TPMS.

Some TPMS systems work differently to others, but all remotely monitor air pressure in the tyres.

Millions of cars in the UK are already fitted with TPMS systems, which became mandatory on all new models last year. They work by monitoring air pressure in the tyres, warning the driver if they are under-inflated or punctured.

TPMS systems are designed to last many years, but may need occasional servicing. The most likely causes of faults are a flat internal battery and corrosion on the sensors.

Beyond a failed MOT, incorrect tyre pressures can have other consequences, including increased fuel consumption, reduced grip and unpredictable handling.

For that reason Tyresafe recommends that drivers don’t rely solely on TPMS, but manually check their tyre pressures at least once a month – and before any long journey.


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