2022 MG MG3 — MOT failures & pass rate
4,926 MOT tests on the 2022 MG MG3 are in this dataset, and 91.2% of them passed. Against superminis of a similar age (6.8% fail rate), the 2022 MG3 comes out 2.0pp worse. Failures cluster in lighting & signalling, tyres and visibility.
What the MOT record shows
No single area dominates — lighting & signalling (6.1%) and tyres (3.8%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, wipers and position lamp — headlamp aim alone was recorded 227 times.
Condition tracks the odometer closely. Failures run at 7.3% in the 0-30k band and 16.2% in the 60-90k band, a 8.9-point spread — more than double.
Advisories point at the next bill rather than this one: tyres was flagged on 22.8% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 6.1% | 300 |
| 2 | Tyres | 3.8% | 186 |
| 3 | Visibility | 3.3% | 160 |
| 4 | Brakes | 1.3% | 63 |
| 5 | Suspension | 0.7% | 32 |
| 6 | Emissions & environmental | 0.3% | 15 |
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 | 227 |
| 2 | Wipers | 109 |
| 3 | Position lamp | 79 |
| 4 | Washers | 75 |
| 5 | Headlamp | 71 |
| 6 | Daytime running lamps | 69 |
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 | 22.8% | 1,123 |
| 2 | Brakes | 9.8% | 483 |
| 3 | Other defects | 5.6% | 276 |
| 4 | Visibility | 2.8% | 136 |
| 5 | Emissions & environmental | 1.0% | 48 |
| 6 | Suspension | 0.9% | 45 |
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 | 3,904 | 7.3% |
| 30-60k | 980 | 14.4% |
| 60-90k | 37 | 16.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 309 | 5.2% |
| 2025 | 4,613 | 9.1% |
What to check before buying a 2022 MG3
On a 2022 MG3, lighting & signalling is what the MOT record says goes wrong most — it appeared in 6.1% of tests. Check these areas before you commit.
- Lighting & signalling (6.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- 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 (3.3% 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.
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 2022 MG MG3s pass their MOT?
91.2% of the 4,926 2022 MG MG3 MOT tests in this dataset passed — a 8.8% fail rate.
What is the most common MOT failure on a 2022 MG MG3?
Lighting & signalling, recorded in 6.1% of tests, followed by tyres (3.8%).
Does the 2022 MG3 get worse with mileage?
Its MOT fail rate rises from 7.3% in the 0-30k band to 16.2% in the 60-90k band.
Methodology & source. Based on 4,926 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.