MG 3 reliability
MOT pass rates & common faults · 26,931 real DVSA tests · 2024
Across 26,931 real DVSA MOT tests in 2024, 79% of MG 3 cars aged 4 to 7 years pass their MOT first time — behind the 85% average for all cars of that age. The faults that come up more than usual are in lights & electrics and brakes.
MOT pass rate by age
Where the 3 tends to fail
Share of MG 3 cars aged 4 to 7 years with no fault in each area (higher is better). The tick is the fleet average for the same age.
Fails more often than average on lights & electrics, brakes, tyres. Holds up better than average on emissions & leaks.
Common questions
Is the MG 3 reliable?
On 2024 MOT data the MG 3 is more demanding than average for its age: 79% of examples aged 4 to 7 years pass first time, against a 85% fleet average. Give lights & electrics, brakes and tyres a close look on any one you view.
What is the MOT pass rate for a MG 3?
First-time MOT pass rates for the MG 3 in 2024: up to 3 years, 85%; 4 to 7 years, 79%; and 8 to 12 years, 71%. Pass rates fall with age across the whole fleet, so compare each figure with cars of the same age, not with a new car.
What commonly fails on a MG 3 MOT?
For MG 3 cars aged 8 to 12 years, the areas that fail an MOT more often than the fleet average are seat belts (3% of tests vs 0.4% fleet), visibility (4.4% of tests vs 2.8% fleet).