Mercedes-Benz GLS reliability
MOT pass rates & common faults · 3,248 real DVSA tests · 2024
Across 3,248 real DVSA MOT tests in 2024, 89% of Mercedes-Benz GLS cars aged 4 to 7 years pass their MOT first time — in line with the 85% average for cars of that age. It holds up especially well on suspension and visibility.
MOT pass rate by age
Where the GLS tends to fail
Share of Mercedes-Benz GLS 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.
Holds up better than average on suspension, visibility, lights & electrics.
Common questions
Is the Mercedes-Benz GLS reliable?
On 2024 MOT data the Mercedes-Benz GLS is about average for its age: 89% of examples aged 4 to 7 years pass first time, against a 85% fleet average. That puts it ahead of 60% of similar-age models.
What is the MOT pass rate for a Mercedes-Benz GLS?
First-time MOT pass rates for the Mercedes-Benz GLS in 2024: 4 to 7 years, 89%. 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 Mercedes-Benz GLS MOT?
No single area stands out as a recurring weakness for the Mercedes-Benz GLS versus other cars of the same age — its MOT failures are spread across the usual wear items (tyres, brakes, lamps).