2,688 tests in 2025
Mazda Mx-30 reliability and MOT pass rate
92.8% passed first time. The 7.2% fail rate is 15.4 points better than the all-car average, on a median example 4 years old with 22,178 miles.
Pass rate
92.8%
22.6% of all cars failed; 7.2% of these did.
Fixed on the day
2.5%
Passed after a defect was put right during the visit.
Median at test
22,178 mi
4 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 2,656 | 7.3% |
| 6-9 years | 0 | — |
| 10-13 years | 0 | — |
| 14+ years | 0 | — |
What the Mx-30 fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Tyres88 dangerous66.3%
- Visibility20.2%
- Brakes15 dangerous11.4%
- Suspension7.3%
- Lamps, reflectors and electrical equipment5.2%
- Identification of the vehicle2.6%
- Seat belts and supplementary restraint systems1.6%
- Body, chassis, structure1 dangerous1%
The exact defects that fail it
Every failure item DVSA recorded against a Mx-30 in 2025, counted by how many tests each one appeared on.
- 1Condition: has a cut in excess of the requirements deep enough to reach the ply or cords57 tests
- 2Tread depth: tread depth below requirements of 1.6mm55 tests
- 3Wipers: does not clear the windscreen effectively28 tests
- 4Shock absorbers: has a serious fluid leak13 tests
- 5Condition: has a bulge, caused by separation or partial failure of its structure11 tests
- 6Brake pads: less than 1.5 mm thick7 tests
- 7Condition: has ply or cords exposed7 tests
- 8Brake discs: significantly and obviously worn7 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Mx-30 collects 2.11 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Tread depth: tread depth below requirements of 1.6mm377 tests
- 2Brake discs: in such a condition that it is seriously weakened270 tests
- 3Shock absorbers: has a serious fluid leak236 tests
- 4Condition: has a tear, caused by separation or partial failure of its structure113 tests
- 5Brake pads: less than 1.5 mm thick81 tests
- 6Condition: has a cut in excess of the requirements deep enough to reach the ply or cords63 tests
- 7Non-component advisories: Child Seat fitted not allowing full inspection of adult belt62 tests
- 8Non-component advisories: Nail in tyre54 tests
Questions
What is the Mazda Mx-30 MOT pass rate?
92.8% of the 2,688 Mazda Mx-30 first-attempt MOTs in 2025 passed. The fail rate of 7.2% compares with 22.6% across all cars. A further 2.5% passed after a defect was fixed during the test visit.
What does a Mazda Mx-30 usually fail on?
The single most common failure is "Condition: has a cut in excess of the requirements deep enough to reach the ply or cords", recorded on 57 failed tests, followed by "Tread depth: tread depth below requirements of 1.6mm" and "Wipers: does not clear the windscreen effectively". By section, tyres appears in 66.3% of failures, visibility appears in 20.2% of failures, brakes appears in 11.4% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was 7.3%; at 3-5 years it was 7.3%. The median Mazda Mx-30 tested in 2025 was 4 years old with 22,178 miles.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Mx-30 trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
Other Mazda models
Checking a particular Mx-30?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.