Common Problems with the
2021–2024 MG MG3

We've identified 2 known issues that can affect the 2021–2024 MG MG3. 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

The 2021–2024 period has an average number of reported issues compared to other MG MG3 year periods.

All Known Issues

SeriousEngine

The metal timing chain can stretch over time, leading to rattling noises and, if ignored, catastrophic engine failure.

Estimated cost: £500–£900Affects: 2013–2024Often appears around: 40,000–70,000 miles

ModerateBodywork & Rust

Owners often report thin paint that chips easily, leading to surface rust if not treated quickly.

Estimated cost: £150–£400Affects: 2013–2024

✓Listen for a rattle from the engine on cold starts, which can indicate timing chain stretch.
✓Inspect the paintwork carefully, especially on the roof and around the windscreen for signs of early corrosion.
✓Check all infotainment functions; the system is known for being laggy and occasionally freezing.