Mercedes Glc
Reliability, running costs, and MOT data across 8 years from 139,021 real MOT tests.
Avg Pass Rate
92%
Total Tests
139,021
Best Year
2022 (96%)
Years Covered
8
How reliable is the Mercedes Glc?
Mercedes Glc by Year
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About the Mercedes Glc
The Mercedes Glc has been tested 139,021 times in 2024 MOT data across 8 model years (2015 to 2022), with an average pass rate of 92%. That's comfortably above the national average of 82%, making it a reliable choice. Available as diesel and petrol.
Best and Worst Years
The 2022 model is the most reliable with a 96% pass rate from 294 tests. The 2016 model has the lowest at 89%. The 7 point spread between years means reliability varies somewhat, but no year is dramatically different.
Reliability Trend
Newer MERCEDES GLCs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Mileage Across Years
The oldest model in our data (2015) averages 76,191 miles, while the newest (2022) averages 25,971 miles.
Compared to the Mercedes brand average of 87%, the Glc performs 5 points better, making it one of the more reliable options in the Mercedes range.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.