2021 Mazda Mx-30 Gt Ev — MOT failures & pass rate
1,383 MOT tests on the 2021 Mazda Mx-30 Gt Ev are in this dataset, and 94.3% of them passed. Against all cars of a similar age (8.7% fail rate), the 2021 Mx-30 Gt Ev comes out 3.0pp better. Failures cluster in tyres, visibility and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (4.7%) and visibility (2.0%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, wipers and headlamp aim — tread depth alone was recorded 35 times.
Advisories point at the next bill rather than this one: tyres was flagged on 20.3% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.7% | 65 |
| 2 | Visibility | 2.0% | 28 |
| 3 | Lighting & signalling | 0.9% | 13 |
| 4 | Brakes | 0.4% | 5 |
| 5 | Other defects | 0.2% | 3 |
| 6 | Suspension | 0.1% | 2 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 35 |
| 2 | Wipers | 20 |
| 3 | Headlamp aim | 15 |
| 4 | Washers | 11 |
| 5 | Registration plates | 5 |
| 6 | Shock absorbers | 4 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 20.3% | 281 |
| 2 | Brakes | 12.8% | 177 |
| 3 | Suspension | 8.9% | 123 |
| 4 | Other defects | 4.8% | 66 |
| 5 | Visibility | 2.2% | 30 |
| 6 | Road wheels | 0.3% | 4 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 1,140 | 5.2% |
| 30-60k | 233 | 8.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 683 | 5.4% |
| 2025 | 695 | 6.0% |
What to check before buying a 2021 Mx-30 Gt Ev
On a 2021 Mx-30 Gt Ev, tyres is what the MOT record says goes wrong most — it appeared in 4.7% of tests. Check these areas before you commit.
- Tyres (4.7% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Visibility (2.0% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Lighting & signalling (0.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Mazda Mx-30 Gt Evs pass their MOT?
94.3% of the 1,383 2021 Mazda Mx-30 Gt Ev MOT tests in this dataset passed — a 5.7% fail rate.
What is the most common MOT failure on a 2021 Mazda Mx-30 Gt Ev?
Tyres, recorded in 4.7% of tests, followed by visibility (2.0%).
Does the 2021 Mx-30 Gt Ev get worse with mileage?
Its MOT fail rate rises from 5.2% in the 0-30k band to 8.2% in the 30-60k band.
Methodology & source. Based on 1,383 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.