Rear Drive Unit Oil Leak
SeriousGearbox & TransmissionSome early MG4 models have suffered from oil leaks from the rear motor/drive unit.
Est. Repair Cost: £0 (Warranty)
Reliability GuideCommon Problems with the
Common Problems with the
2022 MG MG4
The launch year for the MG4. Early models introduced the exciting electric hatchback but had issues with infotainment blackouts, 12V battery drainage, and software glitches that required updates.
What changed for 2022
- •Launch of the MG4 as MG's first dedicated EV hatchback
- •Introduction of 51kWh and 64kWh battery options
- •Sporty styling and rear-wheel-drive layout
Common MOT watch-outs
- !Infotainment screen blackouts requiring software updates
- !12V battery drainage preventing car from starting
- !Brake squealing from infrequent use
5
Known Issues
1
Serious
2
Moderate
2
Minor
All Known Issues
Infotainment Screen Blackouts
ModerateElectrics & ElectronicsThe central touchscreen can go black or freeze during driving, sometimes requiring a full system restart. This is a known software issue addressed by updates.
Est. Repair Cost: Software Update / £0
12V Battery Drainage
ModerateElectrics & ElectronicsLike many EVs, the 12V battery can fail or drain prematurely, preventing the car from entering "Ready" mode. This has been a common complaint on early models.
Est. Repair Cost: £120–£200
Aggressive Lane Keep Assist (LKA)
MinorSteeringThe LKA system on early software can provide sudden and intrusive steering inputs. Which? found it could pull the car onto the wrong side of the road. Software updates have improved this significantly.
Est. Repair Cost: Software Update / £0
Brake Squealing
MinorBrakesMany MG4 owners report persistent brake squeaking, especially at low speeds. This is partly due to the regenerative braking system meaning the physical brakes are used infrequently, leading to surface corrosion.
Est. Repair Cost: £0–£100
Buying Tips for 2022 MG MG4
- ✓Ensure the latest software version is installed
- ✓Check the age and health of the 12V battery
- ✓Listen for brake noise during test drive