MG 4 MOT reliability

MG 4s passed their MOT first time 89% of the time across 4,394 tests in 2025. 50,442 are still licensed in Great Britain.

First-time pass rate

89%

MOTs analysed

4,394

Still licensed (GB)

50,442

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

2022 electric

2,816 MOTs

Passed first time 88%. Typical mileage 24,488 (most between 16,938 and 34,665).

2022: 100% → 2023: 99% → 2024: 90% → 2025: 88%

Most common failures

Headlamp aim: too low (2.8%)
Condition: has a cut in excess of the requirements deep enough to reach the ply or cords (2.3%)
Tread depth below requirements of 1.6mm (2.2%)
Wipers: does not clear the windscreen effectively (1.4%)
Condition: has ply or cords exposed (0.9%)

Where 2022 4s fail

Wheels & tyres

5.2%

Lights & electrics

4.2%

Visibility & wipers

2.5%

Suspension & axles

1.2%

Brakes

0.4%

Body, structure & corrosion

0.2%

Seat belts & other equipment

0.2%

Steering

0.0%

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.