Triumph Stag reliability
MOT pass rates & common faults · 1,373 real DVSA tests · 2024
Across 1,373 real DVSA MOT tests in 2024, 80% of Triumph Stag cars aged 13 years and older pass their MOT first time — ahead of the 61% average for all cars of that age. It holds up especially well on tyres and identification.
MOT pass rate by age
Where the Stag tends to fail
Share of Triumph Stag cars aged 13 years and older with no fault in each area (higher is better). The tick is the fleet average for the same age.
Holds up better than average on tyres, identification, suspension.
Common questions
Is the Triumph Stag reliable?
On 2024 MOT data the Triumph Stag holds up well for its age: 80% of examples aged 13 years and older pass first time, against a 61% fleet average. That puts it ahead of 85% of similar-age models.
What is the MOT pass rate for a Triumph Stag?
First-time MOT pass rates for the Triumph Stag in 2024: 13 years and older, 80%. 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 Triumph Stag MOT?
No single area stands out as a recurring weakness for the Triumph Stag versus other cars of the same age — its MOT failures are spread across the usual wear items (tyres, brakes, lamps).