MG 6 MOT reliability

MG 6s passed their MOT first time 63% of the time across 1,614 tests in 2025. 1,097 are still licensed in Great Britain.

First-time pass rate

63%

MOTs analysed

1,614

Still licensed (GB)

1,097

Body type

–

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2014 petrol

232 MOTs

Passed first time 63%. Typical mileage 66,429 (most between 49,522 and 82,051).

2014: 100% → 2016: 79% → 2017: 81% → 2018: 81% → 2019: 79% → 2020: 74% → 2021: 68% → 2022: 69% → 2023: 62% → 2024: 64% → 2025: 63%

Most common failures

Ball joint excessively worn (6.9%)
Side repeaters: not working (5.2%)
Rigid brake pipes: excessively corroded (4.3%)
Linkage ball joints: ball joint excessively worn (3.9%)
Suspension arm: corroded and seriously weakened (3.9%)

2014 diesel

96 MOTs

These figures come from 96 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 56%. Typical mileage 78,806 (most between 65,763 and 90,897).

2014: 100% → 2015: 100% → 2016: 81% → 2017: 75% → 2018: 72% → 2019: 69% → 2020: 64% → 2021: 63% → 2022: 62% → 2023: 49% → 2024: 53% → 2025: 56%

Most common failures

Rbt (sp): efficiency below requirements (8.3%)
Headlamp aim: projected beam image is obviously incorrect (7.3%)
Side repeaters: not working (6.3%)
Position lamp: not working (6.3%)
Wipers: does not clear the windscreen effectively (5.2%)

2014 gb

1 MOT

These figures come from only 1 MOT test. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 0%. Typical mileage 130,040 (most between 130,040 and 130,040).

2017: 100% → 2018: 0% → 2019: 100% → 2020: 100% → 2021: 100% → 2022: 100% → 2023: 0% → 2024: 0% → 2025: 0%

Most common failures

Suspension arm: corroded and seriously weakened (100.0%)

Where 2014 6s fail

Suspension & axles

17.7%

Lights & electrics

17.2%

Wheels & tyres

12.9%

Brakes

11.2%

Visibility & wipers

3.4%

Body, structure & corrosion

2.2%

Exhaust, emissions & leaks

1.7%

Steering

0.4%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.