MOT and service

MOT vs service - the difference

• MOT: a legal annual roadworthiness test with a defined, government-set inspection standard and a statutory maximum fee. It is pass/fail and it records defects; it is not maintenance and nothing is repaired as part of the test.
• Service: voluntary maintenance to a schedule. Oil, filters and wear items are replaced and the car is inspected, but a service has no legal standing and no fixed content.

A car that has just passed its MOT is not necessarily well maintained, and a serviced car is not automatically MOT-compliant.

Which should be done first?

Where both are booked in one visit, many garages carry out the service first, so that anything obvious - lights, wipers, tyres, brakes - is corrected before the test is submitted. Others test first so you know exactly what has to be fixed.

Either order is legitimate. What matters is that you agree in advance how failures will be handled and that no repair goes ahead without your authorisation.

Should you book them together?

• Pros: one trip, one courtesy arrangement, faults found and fixed in the same visit, and garages often price the combination keenly
• Cons: a bigger single bill, and the car may be off the road for longer on the day
• The MOT due date is fixed by law; the service date is flexible, so it is usually the service that moves to meet the MOT

Timing rules worth knowing

You can have a car tested up to a month (minus a day) before its MOT expiry and keep the same renewal date, which makes it easy to line the MOT up with an annual service without losing days off your certificate.

Comparing combined quotes

• Check whether the quoted price includes the MOT fee or only the service
• Ask what happens - and what it costs - if the car fails and needs a retest
• Confirm the service checklist, not just the label
• Agree an authorisation threshold for extra work before you hand over the keys