2019 Mg Gs — MOT failures & pass rate
Across 1,743 MOT tests analysed for the 2019 Mg Gs, the most common recorded failure areas were lighting & signalling, brakes and tyres. Its pass rate of 86.2% was below the average for cars of a similar age (89.8%). Higher-mileage examples failed more often — 19.8% in the 60-90k group versus 8.9% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 8.2% | 143 |
| 2 | Brakes | 6.1% | 107 |
| 3 | Tyres | 5.3% | 93 |
| 4 | Seat belts & restraints | 1.8% | 31 |
| 5 | Visibility | 1.7% | 30 |
| 6 | Emissions & environmental | 1.3% | 22 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 140 |
| 2 | Tread depth | 55 |
| 3 | Brake pads | 48 |
| 4 | Tyre pressure monitoring system | 43 |
| 5 | Anti-lock braking system | 39 |
| 6 | Electronic stability control | 32 |
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 | 23.3% | 406 |
| 2 | Brakes | 20.1% | 350 |
| 3 | Other defects | 9.2% | 160 |
| 4 | Suspension | 3.3% | 58 |
| 5 | Visibility | 2.9% | 51 |
| 6 | Lighting & signalling | 2.5% | 44 |
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 | 801 | 8.9% |
| 30-60k | 811 | 17.5% |
| 60-90k | 116 | 19.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2022 | 411 | 6.3% |
| 2023 | 422 | 11.4% |
| 2024 | 444 | 18.5% |
| 2025 | 441 | 18.4% |
What to check before buying a 2019 Gs
Before buying a 2019 Mg Gs, focus on the areas it most often fails on. Lighting & signalling accounted for 8.2% of tests for this year.
- Lighting & signalling (8.2% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (6.1% 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.
- Tyres (5.3% 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.
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 2019 Mg Gss pass their MOT?
86.2% of the 1,743 2019 Mg Gs MOT tests in this dataset passed — a 13.8% fail rate.
What is the most common MOT failure on a 2019 Mg Gs?
Lighting & signalling, recorded in 8.2% of tests, followed by brakes (6.1%).
Does the 2019 Gs get worse with mileage?
Its MOT fail rate rises from 8.9% in the 0-30k band to 19.8% in the 60-90k band.
Methodology & source. Based on 1,743 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.