IsItAGoodCar
Reliability Guide

Common Problems with the
2024 MG MG4

The latest MG4 models should have all known issues resolved through software updates, making them excellent value for those seeking an affordable electric hatchback.

What changed for 2024

  • •All models now include latest software
  • •Improved build quality and refinement
  • •Updated safety features

Common MOT watch-outs

  • !Minor electronic glitches
  • !Brake wear on cars with low annual mileage
  • !Tyre pressure monitoring system warnings
3
Known Issues
0
Serious
2
Moderate
1
Minor

All Known Issues

Infotainment Screen Blackouts

ModerateElectrics & Electronics

The 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
Warning Signs:

Screen going black while driving, Touchscreen unresponsive, Need to hold power button to restart

What to Inspect:
  • Ensure the latest software version is installed
  • Test the screen for extended period during test drive
Verified by IsItAGoodCar Research Team

12V Battery Drainage

ModerateElectrics & Electronics

Like 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
Warning Signs:

Car won't start, Multiple warning messages, Keyless entry failing

What to Inspect:
  • Check the age and health of the 12V battery
  • Ask if an AGM battery upgrade has been fitted
Verified by IsItAGoodCar Research Team

Brake Squealing

MinorBrakes

Many 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
Warning Signs:

High-pitched squeal when braking, Squeaking at low speeds, Grinding noise after the car has been parked

What to Inspect:
  • Listen for brake noise during test drive
  • Inspect brake discs for corrosion
Verified by IsItAGoodCar Research Team

Buying Tips for 2024 MG MG4

  • ✓Look for a full MG service history
  • ✓Test all safety systems thoroughly
  • ✓Verify the battery health report
2023
Check a 2024 MG MG4 by Registration