MOT data
MG 6 MOT fail rate by age and year
DVSA MOT tests 2022–2025 · 5,526 MOT tests · Updated
At 10 years, 38.4% of MG 6 MOT tests ended in a fail (adjusted to typical mileage), against 30.9% for all class 4 vehicles tested at 10 (1,587 MOT tests) [1].
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- Lights and electrics: fails 1.4–1.8× as often as cars the same age at 10 years, 282 of 1,587 MOT tests
- Mileage: median 68,923 miles at 10 years against 75,043 for all class 4 vehicles, 1,587 MOT tests
- Before the mileage adjustment: 39.1% of MOT tests at 10 years ended in a fail, 1,587 MOT tests
Which engine and year a car has decides which of these apply. Check the reg first.
Figures are for the model, not one car, and compare with all class 4 vehicles tested at 10 in the same test year.
- Fail rate at 10 years, typical mileage
- 38.4%
- vs 30.9% for all class 4 vehicles tested at 10
- 1,587 MOT tests
- Fail rate at 10 years, raw
- 39.1%
- vs 30.9% for all class 4 vehicles tested at 10
- 1,587 MOT tests
- Median mileage at 10 years
- 68,923 mi
- vs 75,043 mi for all class 4 vehicles
- 1,587 MOT tests
MG 6 MOT fail rate by age
Each line follows the cars first used in one year across the ages they were tested at from 2022 to 2025, so a line never mixes a 2005 car with a 2015 one. 6k DVSA MOT tests in all (5,526).
At 10 years and typical mileage that is 24% more fails than all class 4 vehicles tested at 10 (1,587 MOT tests).
| Age | Raw | Typical mileage | All class 4 |
|---|---|---|---|
| 8 | 34.1% | 33.4% | 24.7% |
| 9 | 36.5% | 37.0% | 27.3% |
| 10 | 39.1% | 38.4% | 30.9% |
| 11 | 42.5% | 43.5% | 33.6% |
Higher MOT fail rate than average: 39.1% raw · 38.4% at typical mileage, against 30.9% for all class 4 vehicles tested at 10, 1,587 MOT tests. Which years? See the full verdict
What fails on an MG 6 at 10 years
1 of 11 parts fail clearly more or less often than on cars the same age, with the same direction at 3 or more ages up to 18 years and no mixed picture.
| Part | Per 100 | All class 4 | Compared | Most common fail |
|---|---|---|---|---|
| Lights and electrics | 17.8 | 11.2 | fails 1.4–1.8× as often as cars the same age | Position lamp not working (MOT fail) |
| Brakes | 14.6 | 6.5 | about average for cars the same age | Brake pipe excessively corroded (MOT fail) |
| Suspension | 14.2 | 9.7 | about average for cars the same age | Suspension arm ball joint excessively worn (MOT fail) |
| Tyres | 10.8 | 6.9 | about average for cars the same age | Tyre tread depth below requirements of 1.6mm (MOT fail) |
| Visibility | 5.0 | 4.4 | about average for cars the same age | Windscreen wiper does not clear the windscreen effectively (MOT fail) |
| Emissions and leaks | 3.0 | 2.8 | about average for cars the same age | Malfunction indicator lamp inoperative or indicates a malfunction (MOT fail) |
Buying an MG 6? Check that exact car before the viewing.
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- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
Check one MG 6, not the average
The figures here describe MG 6 cars as a group. A registration shows one car's own DVSA record: its MOT tests, the mileage at each test and the recall flag.
- Check an MG 6's MOT history Every MOT test, fail item, advisory and mileage reading DVSA holds for that registration.
- Mileage check on an MG 6 The odometer reading from each MOT, with drops, jumps and long gaps flagged.
- Check an MG 6 for an outstanding recall Whether DVSA's MOT record flags an outstanding safety recall for that registration.
More MG 6 data
Mileage at MOT
At 10 years, 39.1% of MOT tests ended in a fail as tested. Weighted to the mileage mix of all class 4 vehicles that age, the rate is 38.4%, so mileage explains part of the gap.
| Miles | MOT tests | MG 6 | All class 4 |
|---|---|---|---|
| 30-60k | 483 | 34.0% | 24.7% |
| 60-90k | 679 | 42.0% | 31.9% |
| 90-120k | 289 | 45.0% | 35.3% |
MG 6 against similar cars at 10 years
Same class and fuel, all tested at 10 years, at typical mileage.
| Model | Fail rate | 95% range | MOT tests |
|---|---|---|---|
| MG 6 | 38.4% | 35.8% to 41.0% | 1,587 |
| BMW 3 Series MOT fail rate | 21.8% | 21.5% to 22.0% | 134,877 |
| Mercedes-Benz C-Class MOT fail rate | 23.6% | 23.4% to 23.9% | 115,498 |
| Vauxhall Insignia MOT fail rate | 29.8% | 29.4% to 30.1% | 99,618 |
| Mercedes-Benz E-Class MOT fail rate | 23.2% | 22.9% to 23.5% | 76,966 |
| Audi A4 MOT fail rate | 22.3% | 21.9% to 22.7% | 63,849 |
| BMW 5 Series MOT fail rate | 19.1% | 18.7% to 19.6% | 63,107 |
| Ford Mondeo MOT fail rate | 25.5% | 25.1% to 26.0% | 60,074 |
| Volkswagen Passat MOT fail rate | 23.6% | 23.1% to 24.1% | 59,093 |
Other MG models
More MG 6 data
Running costs
By part
- MG 6 suspension problems
- MG 6 brakes problems
- MG 6 lights and electrics problems
- MG 6 steering problems
- MG 6 exhaust and emissions problems
- MG 6 windscreen and wipers problems
- MG 6 tyres problems
Problems, recalls and costs
Questions people ask
How often does an MG 6 fail its MOT at 10 years?
38.4% of MOT tests at 10 years ended in a fail at typical mileage (39.1% as tested), from 1,587 MOT tests, against 30.9% for all class 4 vehicles the same age; the BMW 3 Series was at 21.8%.
What fails most on an MG 6 at 10 years?
17.8 in 100 MOT tests at 10 years failed on lights and electrics, most often "position lamp not working", then brakes (14.6) and suspension (14.2), from 1,587 MOT tests.
How does the MG 6 compare with the BMW 3 Series?
At 10 years the MG 6 failed 38.4% of MOT tests at typical mileage, the BMW 3 Series 21.8% and the Mercedes-Benz C-Class 23.6%, from 1,587, 134,877 and 115,498 MOT tests.
Does the MG 6 fail on lights and electrics more than other cars?
17.8 in 100 MOT tests at 10 years failed on lights and electrics, against 11.2 for all class 4 vehicles: 1.4–1.8× as often, from 1,587 MOT tests, in the same direction at 3 ages.
What mileage does an MG 6 have at 10 years?
A median of 68,923 miles at the MOT test at 10 years, against 75,043 for all class 4 vehicles the same age, from 1,587 MOT tests.
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 5,526 MOT tests. Accessed 7 Oct 2026.
Cars tested at 10 years are compared only with vehicles tested at 10 years in the same year, adjusted to typical mileage. Breakdowns and non-MOT faults are not in this data.