Reliability Guide

Common MG Problems

Select a model below to discover known faults, common MOT failures, estimated repair costs, and buying tips.

Brand-wide MG Problem Patterns

K-Series Engine (Classic): Head gasket failure is extremely common but can be permanently fixed with uprated parts.
Modern Infotainment: Lag and occasional system crashes affect most models from 2017–2021.
MG4 Coolant Leaks: Some owners report blue/green fluid leaks from the drive unit cooling system.

Looking to check a used MG?

Run a full registration check to inspect MOT history, mileage anomalies, write-off categories, and finance.

Check a MG Registration