2020 Mg Hs Exclusive Phev Auto — MOT failures & pass rate
Across 383 MOT tests analysed for the 2020 Mg Hs Exclusive Phev Auto, the most common recorded failure areas were lighting & signalling, tyres and brakes. Its pass rate of 95.3% was above the average for cars of a similar age (90.5%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 2.4% | 9 |
| 2 | Tyres | 2.1% | 8 |
| 3 | Brakes | 1.6% | 6 |
| 4 | Visibility | 0.8% | 3 |
| 5 | Suspension | 0.5% | 2 |
| 6 | Emissions & environmental | 0.3% | 1 |
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 | 12 |
| 2 | Brake discs | 5 |
| 3 | Tread depth | 3 |
| 4 | Washers | 2 |
| 5 | Tyre pressure monitoring system | 2 |
| 6 | Flexible brake hoses | 2 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 20.9% | 80 |
| 2 | Tyres | 14.9% | 57 |
| 3 | Other defects | 8.1% | 31 |
| 4 | Suspension | 3.7% | 14 |
| 5 | Lighting & signalling | 1.3% | 5 |
| 6 | Visibility | 1.0% | 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 | 214 | 4.2% |
| 30-60k | 145 | 4.1% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 121 | 1.7% |
| 2024 | 132 | 6.1% |
| 2025 | 129 | 6.2% |
What to check before buying a 2020 Hs Exclusive Phev Auto
Before buying a 2020 Mg Hs Exclusive Phev Auto, focus on the areas it most often fails on. Lighting & signalling accounted for 2.4% of tests for this year.
- Lighting & signalling (2.4% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Tyres (2.1% 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.
- Brakes (1.6% 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 2020 Mg Hs Exclusive Phev Autos pass their MOT?
95.3% of the 383 2020 Mg Hs Exclusive Phev Auto MOT tests in this dataset passed — a 4.7% fail rate.
What is the most common MOT failure on a 2020 Mg Hs Exclusive Phev Auto?
Lighting & signalling, recorded in 2.4% of tests, followed by tyres (2.1%).
Does the 2020 Hs Exclusive Phev Auto get worse with mileage?
Its MOT fail rate rises from 4.2% in the 0-30k band to 4.1% in the 30-60k band.
Methodology & source. Based on 383 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.