How reliable is the Mazda MX-30 compared with other cars?

We do not publish a comparison for the Mazda MX-30, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 90.0% across 2,620 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What is the most common MOT failure on a Mazda MX-30?

The item recorded most often is "A tyre seriously damaged", which appears in 35.7% of failed Mazda MX-30 tests. Because one failed test can list several items, these shares do not add up to 100%.

What do testers most often warn about on a Mazda MX-30?

The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 20.0% of all Mazda MX-30 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Mazda MX-30 usually have at its MOT?

The average odometer reading recorded at test is 24,391 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Model reliability file

Mazda MX-30 MOT pass rate & common failures

From 2,620 recorded MOT tests of the Mazda MX-30, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 2,620 MOT tests, 90.0% of Mazda MX-30 tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Mazda MX-30 fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is tyre seriously damaged, which appears in 35.7% of failed tests. Cars of this model average 24,391 miles on the odometer when tested.

At a glance

Recorded pass rate

90.0%unadjusted, not comparable2,620 tests

We are not publishing a ranking for the MX-30. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 2,620 tests and are worth reading on their own terms.

Electric car

How the MX-30 compares with other electric cars

At 3 to 5 years old the Mazda MX-30 passes 89.9% of MOT tests, from 2,616 tests in that age band. Petrol and diesel cars of the same age pass 89.9%, so this model sits level with that baseline. Among electric cars it ranks 10 of 43.

There is no emissions test for an electric car and the MOT does not check the battery. Electric cars as a group fail slightly more often than same-age petrol cars, almost entirely on tyres and suspension, because they are heavier and deliver full torque instantly.

Every electric car ranked, and what fails · What the MOT tests on an electric car

DVSA recorded wording

Most common failure items

Share of failed Mazda MX-30 tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.A tyre seriously damaged35.7%
71 occurrencesTyre damaged or deteriorated explained
2.Tyre tread depth not in accordance with the requirements34.2%
68 occurrencesTyre worn close to the legal limit explained
3.Wiper blade missing or obviously not clearing the windscreen19.1%
38 occurrencesWiper or washer not working properly explained
4.A shock absorber damaged to the extent that it does not function or showing signs of severe leakage10.1%
20 occurrencesShock absorber defective explained
5.A tyre seriously damaged6.0%
12 occurrencesTyre damaged or deteriorated explained
6.Brake disc or drum significantly and obviously worn5.5%
11 occurrencesBrake disc worn, pitted or scored explained
7.A tyre cords visible or damaged4.5%
9 occurrencesTyre ply or cord exposed, or the casing separating explained
8.A brake lining or pad worn below 1.5mm4.0%
8 occurrencesBrake drum or shoe worn or contaminated explained
9.Windscreen washers not working or not providing sufficient fluid to clear the windscreen3.0%
6 occurrencesWiper or washer not working properly explained
10.Brake disc or drum excessively weakened, insecure or fractured3.0%
6 occurrencesBrake disc worn, pitted or scored explained

Warnings without a failure

Most common advisories

Share of all Mazda MX-30 tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.Tyre tread depth not in accordance with the requirements20.0%
524 testsTyre worn close to the legal limit explained
2.Brake disc or drum excessively weakened, insecure or fractured15.6%
409 testsBrake disc worn, pitted or scored explained
3.A shock absorber damaged to the extent that it does not function or showing signs of severe leakage13.4%
351 testsShock absorber defective explained
4.A tyre seriously damaged6.8%
178 testsTyre damaged or deteriorated explained
5.A brake lining or pad worn below 1.5mm4.0%
104 testsBrake drum or shoe worn or contaminated explained
6.A tyre seriously damaged3.2%
83 testsTyre damaged or deteriorated explained
7.Tyre tread depth not in accordance with the requirements2.8%
72 testsTyre worn close to the legal limit explained
8.Child Seat fitted not allowing full inspection of adult belt2.7%
71 tests

The rest of the record

Everything else recorded on the Mazda MX-30

The 18 other defects testers recorded on this model, beyond the most common listed above. Each links to what it means and what it takes to put right.

What gets tested

The MX-30 fleet

Average mileage recorded at test: 24,391
Fuel mix of tested cars: Electric100.0%

Trim names grouped into this model (5)

Recorded exactly as DVSA holds them. Trim-level names are rolled up so one model is not split across a dozen thin pages.

MX-30 FIRST EDITION EV
MX-30 GT SPORT TECH EV
MX-30 SE-L LUX EV
MX-30 SPORT
MX-30 SPORT LUX EV

Check a specific Mazda MX-30

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Mazda models

Mazda 2 — 69.8% adjusted
Mazda 3 — 70.6% adjusted
Mazda MX-5 — 77.2% adjusted
Mazda CX-5 — 78.5% adjusted
Mazda 6 — 73.3% adjusted
Mazda CX-3 — 83.5% unadjusted
All Mazda models

Common questions

How reliable is the Mazda MX-30 compared with other cars?: We do not publish a comparison for the Mazda MX-30, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 90.0% across 2,620 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a Mazda MX-30?: The item recorded most often is "A tyre seriously damaged", which appears in 35.7% of failed Mazda MX-30 tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Mazda MX-30?: The most common advisory is "Tyre tread depth not in accordance with the requirements", noted on 20.0% of all Mazda MX-30 tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Mazda MX-30 usually have at its MOT?: The average odometer reading recorded at test is 24,391 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.