Mercedes-Benz · MOT reliability data
Mercedes-Benz GLA
The GLA is Mercedes-Benz's compact SUV, competing with the Audi Q3 and BMW X1.
Mercedes-Benz · MOT reliability data
The GLA is Mercedes-Benz's compact SUV, competing with the Audi Q3 and BMW X1.
83.3%
MOT pass rate
Compact SUV
Segment
Petrol, diesel, plug-in hybrid
Fuel types available
Source: DS Auto Labs analysis of DVSA's anonymised 2025 MOT test results (Open Government Licence v3.0): 91,403 first-time tests of Mercedes-Benz GLA cars of all ages (test class 4, cars and light vans). A pass means a clean first-time pass; a car that failed and was repaired at the test station before passing counts as not passed, and aborted tests are excluded. Age is the car's age at the 2025 test.
What to know
In 2025, Mercedes-Benz GLA cars passed their MOT first time 83.3% of the time, across 91,403 tests. That is 6.3 points above Mercedes-Benz's overall brand average of 77.0% and 10.9 points above the national average of 72.4%.
Age explains much of the difference between models. Pass rates fall steeply as cars get older, for every make, so a model with many old cars on the road looks worse than it is, and a recent model looks better. This compares the Mercedes-Benz GLA with the typical UK car of the same age.
| Car age | Mercedes-Benz GLA | All UK cars | Tests |
|---|---|---|---|
| 3-5 years | 90.8% | 87.2% | 22,481 |
| 6-9 years | 81.6% | 79.3% | 56,436 |
| 10-13 years | 77.1% | 67.9% | 12,249 |
Allowing for the age mix of the cars tested, a typical UK car would be expected to pass about 79.7% of the time. The Mercedes-Benz GLA passed at 83.3%, which is 3.6 points above that expected rate.
A model average says little about one particular car, so check its own MOT history for repeated advisories, past failures and mileage.
Check a specific GLA's MOT history, tax status, and advisories by registration number.
Check MOT historySee how the Mercedes-Benz range compares overall, with model-by-model pass rates.
View Mercedes-Benz brand page