2021 Mazda Mx-30 Lux Ev — MOT failures & pass rate
Across 1,081 MOT tests, the 2021 Mazda Mx-30 Lux Ev recorded a 93.6% pass rate. That is 2.3 percentage points better than all cars of a similar age, which fail at 8.7%. Failures cluster in tyres, visibility and brakes.
What the MOT record shows
No single area dominates — tyres (3.8%) and visibility (2.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are tread depth, washers and wipers — tread depth alone was recorded 25 times.
Advisories point at the next bill rather than this one: tyres was flagged on 22.5% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.8% | 41 |
| 2 | Visibility | 2.9% | 31 |
| 3 | Brakes | 1.1% | 12 |
| 4 | Lighting & signalling | 0.8% | 9 |
| 5 | Suspension | 0.5% | 5 |
| 6 | Seat belts & restraints | 0.2% | 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 | 25 |
| 2 | Washers | 17 |
| 3 | Wipers | 15 |
| 4 | Headlamp aim | 11 |
| 5 | Brake discs | 5 |
| 6 | Brake pads | 5 |
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 | 22.5% | 243 |
| 2 | Brakes | 16.7% | 181 |
| 3 | Suspension | 8.4% | 91 |
| 4 | Other defects | 7.0% | 76 |
| 5 | Visibility | 3.0% | 32 |
| 6 | Road wheels | 0.5% | 5 |
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 | 788 | 4.6% |
| 30-60k | 283 | 11.7% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 521 | 5.2% |
| 2025 | 550 | 7.6% |
What to check before buying a 2021 Mx-30 Lux Ev
On a 2021 Mx-30 Lux Ev, tyres is what the MOT record says goes wrong most — it appeared in 3.8% of tests. Check these areas before you commit.
- Tyres (3.8% 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 (2.9% 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.
- Brakes (1.1% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
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 Lux Evs pass their MOT?
93.6% of the 1,081 2021 Mazda Mx-30 Lux Ev MOT tests in this dataset passed — a 6.4% fail rate.
What is the most common MOT failure on a 2021 Mazda Mx-30 Lux Ev?
Tyres, recorded in 3.8% of tests, followed by visibility (2.9%).
Does the 2021 Mx-30 Lux Ev get worse with mileage?
Its MOT fail rate rises from 4.6% in the 0-30k band to 11.7% in the 30-60k band.
Methodology & source. Based on 1,081 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.