MOT advisories explained: what the result does and does not prove

Last reviewed · OBDCode UK editorial

An advisory does not fail the MOT, but it is not a guarantee that the vehicle will remain roadworthy until the next test.

Read the recorded category

A minor defect is recorded without failing the test. A major or dangerous defect fails. A dangerous defect means the vehicle must not be driven until repaired.

  • Read the exact wording and affected system rather than judging urgency from the word advisory alone.
  • Prioritise tyres, brakes, steering, suspension, structural corrosion, fuel leaks and occupant-restraint issues.
  • Check whether the same item appears in several test records and give the history to the repairer.

Driving after a fail

A still-valid certificate does not make an unroadworthy vehicle legal to drive. Use the failure category, roadworthiness and the official conditions for travel to repairs or a test.

UK cost

We don’t have a verified repair range for an advisory without knowing the exact item and vehicle. Ask for a written diagnosis and estimate.

Related guides

Sources

General guidance, not professional advice.

Where does this guidance come from?

This page is written against the UK MOT record and the official guidance that sits behind it, so you can check the underlying material yourself rather than take this page's word for it. The DVSA publishes anonymised MOT test results as open data under the Open Government Licence, and that release is the source this site is built from.