Mercedes G
Reliability, running costs, and MOT data across 6 years from 4,555 real MOT tests.
Avg Pass Rate
97%
Total Tests
4,555
Best Year
2022 (100%)
Years Covered
6
How reliable is the Mercedes G?
Mercedes G by Year
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About the Mercedes G
The Mercedes G has been tested 4,555 times in 2024 MOT data across 6 model years (2017 to 2022), with an average pass rate of 97%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol and diesel.
Best and Worst Years
The 2022 model is the most reliable with a 100% pass rate from 44 tests. The 2019 model has the lowest at 93%. The 7 point spread between years means reliability varies somewhat, but no year is dramatically different.
Reliability Trend
The MERCEDES G has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Mileage Across Years
The oldest model in our data (2017) averages 37,599 miles, while the newest (2022) averages 19,247 miles.
Compared to the Mercedes brand average of 87%, the G performs 10 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.