Mercedes-Benz GLC MOT Reliability & Buying Guide

86.3%

MOT pass rate

Mid-size 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): 83,884 first-time tests of Mercedes-Benz GLC 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 GLC cars passed their MOT first time 86.3% of the time, across 83,884 tests. That is 9.3 points above Mercedes-Benz's overall brand average of 77.0% and 13.9 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 GLC with the typical UK car of the same age.

MOT pass rate by vehicle age, 2025 first-time tests
Car age	Mercedes-Benz GLC	All UK cars	Tests
3-5 years	90.4%	87.2%	24,774
6-9 years	84.6%	79.3%	57,597
10-13 years	82.9%	67.9%	1,318

Allowing for the age mix of the cars tested, a typical UK car would be expected to pass about 81.5% of the time. The Mercedes-Benz GLC passed at 86.3%, which is 4.8 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 GLC's MOT history, tax status, and advisories by registration number.

Check MOT history

See how the Mercedes-Benz range compares overall, with model-by-model pass rates.

View Mercedes-Benz brand page