MG 4 Mk1 (EV) (2022-present) reliability
MG 4 Mk1 (EV) built around 2022: about average at the MOT
MG 4 Mk1 (EV) models built around 2022 fail their MOT about as often as similar cars the same age.
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Key figure
11% of MOT tests on MG 4 Mk1 (EV) models built around 2022 ended in a fail (retests included), against 11% for similar cars the same age.
Most common issue
The most common MOT issue on MG 4 Mk1 (EV) models built around 2022 involves the tyres.
Based on 2,187 tests of 4 models registered 2022+.
About 1 in 9 electricity 4 cars registered in 2022 (11.5%) failed their first MOT.
Based on 2,469 first MOTs (DVSA MOT results, 2025).
About 1 in 50 4 Mk1 (EV) MOTs (1.9%) failed and still hadn't passed 3 days later. That's for cars built around 2022 (3 years old), all fuels combined.
Based on 2,187 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.
About 1 in 40 4 Mk1 (EV) MOTs (2.8%) found at least one dangerous defect. These are cars built around 2022 (3 years old).
Based on 2,187 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.
Mk1 (EV) fail rate by age
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 3 years old.
How the 4 Mk1 (EV) compares
At each age below, see how the 4 Mk1 (EV) holds up against other cars the same age. The averages combine all fuel types.
Based on 55,517 tests across 5 MG models, built around 2022 (3 years old).
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.
What to check before viewing
The model's most common MOT issues, turned into things you can ask about or look for.
Brake discs
High priorityAsk for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Tyres
Worth checkingCheck tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Suspension bushes and joints
Worth checkingListen for knocks over speed bumps and ask about recent control-arm or anti-roll-bar work.
Vehicle-specific check
Worth checkingCheck the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Headlight aim
If you have timePark facing a wall at night and check the beam pattern is even and at the right height.
Other saloons to compare
Other saloons, with each one's figures taken at the same age as the 4 Mk1 (EV).
- 1
Porsche Taycan
Same body type, tested at the same age
- Fail rate
- 8.7%
- Fail, no pass in 3 days
- 2.7%
- Dangerous
- 5.5%
Lower fail rate: 8.7%, against 11.1% for the MG 4 Mk1 (EV), both built around 2022.
2 critical recall campaigns matching this model/build period.
4,967 MOT tests on cars built around 2022
- 2
Audi A6
Same body type, tested at the same age
- Fail rate
- 8.7%
- Fail, no pass in 3 days
- 2.4%
- Dangerous
- 4.1%
- Still registered at 10 years
- 79.1%
Lower fail rate: 8.7%, against 11.1% for the MG 4 Mk1 (EV), both built around 2022.
4 critical recall campaigns matching this model/build period.
4,970 MOT tests on cars built around 2022
- 3
Tesla Model 3
Same body type, tested at the same age
- Fail rate
- 12.8%
- Fail, no pass in 3 days
- 3.5%
- Dangerous
- 7.1%
No clear edge over the MG 4 Mk1 (EV) on these figures.
30,406 MOT tests on cars built around 2022
- 4
Audi A4
Same body type, tested at the same age
- Fail rate
- 11%
- Fail, no pass in 3 days
- 2.4%
- Dangerous
- 5.2%
- Still registered at 10 years
- 85%
No clear edge over the MG 4 Mk1 (EV) on these figures.
4 critical recall campaigns matching this model/build period.
8,054 MOT tests on cars built around 2022
- Fail rate
- = the share of MOT tests that ended in a fail. Retests count as tests.
- Fail, no pass in 3 days
- = the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
- Dangerous
- = the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
- Still registered at 10 years
- = the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.
Recall context
1 recall in all1 4 Mk1 (EV) recall covers cars built in these years.
- 1 recall
Top concerns
- Potential for MG4 vehicles to superlock whilst still in running mode
For the exact car, check GOV.UK's recall checker with the number plate.
Mk1 (EV) variants compared
4 Mk1 (EV) variants built around 2022
The fail rate for each 4 Mk1 (EV) variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.
Electricity
- 4 TROPHY10.8%1,160 tests
- 4 SE11.4%1,021 tests
Most common issues on MG 4 models of this age
This list covers every MG 4 built around 2022, whichever generation it is. We don't have a defect list for the Mk1 (EV) on its own.
Most common advisories and fails
In order of the share of MOT tests that recorded each one
- 120.7%Advisory
Tyre worn close to the legal limit or worn on the edge
- 211.7%Advisory
Brake disc worn, pitted or scored, but not seriously weakened
- 36.2%Advisory
Suspension arm pin or bush worn, but not moving too much
- 45.8%Advisory
Tyre has a cut that does not reach the ply or cords
- 53.2%Advisory
Headlamp aimed too low or out of line
Based on 2,188 tests
Looking at an MG 4 Mk1 (EV) right now?
Enter its number plate to see its full MOT history, risk rating and running costs.
Frequently asked questions
Built around 2022 (3 years old), the MG 4 Mk1 (EV) (2022-present) fails MOTs at about the rate typical for this age. This is based on 2,187 3-year-old MOT tests from DVSA data. Each retest counts as a test.