2021 Mg Mg 5 Excite Ev — MOT failures & pass rate
Across 1,004 MOT tests analysed for the 2021 Mg Mg 5 Excite Ev, the most common recorded failure areas were lighting & signalling, tyres and suspension. Its pass rate of 91.7% was below the average for cars of a similar age (92.8%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 13.2% | 132 |
| 2 | Tyres | 6.0% | 60 |
| 3 | Suspension | 1.5% | 15 |
| 4 | Visibility | 1.4% | 14 |
| 5 | Brakes | 0.4% | 4 |
| 6 | Road wheels | 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 | Headlamp | 83 |
| 2 | Registration plate lamp(s) | 51 |
| 3 | Tread depth | 47 |
| 4 | Stop lamp | 37 |
| 5 | Headlamp aim | 20 |
| 6 | Washers | 12 |
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 | 17.1% | 172 |
| 2 | Lighting & signalling | 4.3% | 43 |
| 3 | Suspension | 4.0% | 40 |
| 4 | Other defects | 3.0% | 30 |
| 5 | Visibility | 2.0% | 20 |
| 6 | Brakes | 1.2% | 12 |
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 | 184 | 2.2% |
| 30-60k | 307 | 5.5% |
| 60-90k | 258 | 12.8% |
| 90-120k | 156 | 12.8% |
| 120-150k | 67 | 10.4% |
| 150k+ | 32 | 6.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2022 | 229 | 3.1% |
| 2023 | 256 | 7.8% |
| 2024 | 264 | 12.1% |
| 2025 | 241 | 10.0% |
What to check before buying a 2021 Mg 5 Excite Ev
Before buying a 2021 Mg Mg 5 Excite Ev, focus on the areas it most often fails on. Lighting & signalling accounted for 13.2% of tests for this year.
- Lighting & signalling (13.2% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (6.0% 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.
- Suspension (1.5% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
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 Mg Mg 5 Excite Evs pass their MOT?
91.7% of the 1,004 2021 Mg Mg 5 Excite Ev MOT tests in this dataset passed — a 8.3% fail rate.
What is the most common MOT failure on a 2021 Mg Mg 5 Excite Ev?
Lighting & signalling, recorded in 13.2% of tests, followed by tyres (6.0%).
Does the 2021 Mg 5 Excite Ev get worse with mileage?
Its MOT fail rate rises from 2.2% in the 0-30k band to 6.3% in the 150k+ band.
Methodology & source. Based on 1,004 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.