MOT guides

What the UK average annual mileage really is, how it has fallen, what counts as high or low for a car's age, and why very low mileage can be a warning sign.

11 min read

How to vet a used car properly — the online checks before you travel, what the MOT record tells you, the physical inspection, the test drive and the paperwork.

11 min read

Reliability rankings are a blunt instrument. How to judge a used car from its MOT record, what pass rates really mean, and why age and mileage beat the badge.

11 min read

What clocking is, why altering an odometer is not itself illegal, how the public MOT record exposes it, the innocent explanations, and what to do if you find one.

11 min read

The patterns that matter in an MOT record — testing gaps, repeat advisories, mileage anomalies, corrosion appearing and a cluster of failures just before a sale.

11 min read

How the roller brake tester works, the efficiency and imbalance thresholds a car must meet, why new pads can still fail, and what each brake failure costs.

11 min read

The defect categories that account for most MOT failures, ranked, with the specific pre-test checks that prevent each one and how long each check takes.

11 min read

The UK's 1.6mm tread limit, the three-quarters-of-the-width detail most drivers miss, the penalty for each illegal tyre, and how to measure tread properly.

11 min read

Every way to find your MOT expiry date, how the renewal date is calculated, what to do when the date looks wrong, and how to set up a free reminder.

11 min read

An MOT is a legal roadworthiness test. A service is preventative maintenance. What each one covers, what neither covers, and why a serviced car can still fail.

11 min read

Every item a tester inspects during a car MOT, what is deliberately excluded, how defects are graded, and the checks most likely to catch people out.

10 min read

Why the DVLA system blocks taxing a car with no valid MOT, the exemptions that let you tax anyway, how SORN works, and what to do when the dates fall out of step.

11 min read

The one month minus a day rule explained, how the renewal anniversary is preserved, when testing early quietly costs you weeks, and what happens after expiry.

10 min read

The £54.85 cap on car MOT fees, why garages charge far less, when retests are free, what repairs typically add, and how to avoid being upsold work.

11 min read

New cars, 40-year-old classics, electric vehicles and goods vehicles — who is genuinely exempt from the MOT, what substantial change means, and how to declare it.

11 min read

The free retest rules explained — the next-working-day item list, the 10-working-day partial retest, the half-fee cap, and when a full test fee applies again.

10 min read

The fines, the insurance and tax consequences, the narrow journeys the law still allows, and how ANPR enforcement finds untested vehicles automatically.

10 min read

Whether you can legally drive away, how to choose where to repair, what the retest deadlines are, and how to appeal an MOT failure you believe is wrong.

10 min read

What each MOT defect grade means, whether you can legally drive away, why identical faults are graded differently on different tests, and how to challenge a result.

11 min read

What an MOT advisory really means, how it differs from a minor defect, which advisories are close to failures, and how to read them in a vehicle's history.

11 min read

How the MOT emissions test works for petrol and diesel cars, the DPF and visible smoke rules, what causes a borderline result, and what a failure costs to fix.

10 min read