Mercedes R-class
Reliability, running costs, and MOT data across 8 years from 5,257 real MOT tests.
Avg Pass Rate
81%
Total Tests
5,257
Best Year
2011 (92%)
Years Covered
8
How reliable is the Mercedes R-class?
Mercedes R-class by Year
Checking a specific Mercedes R-class?
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About the Mercedes R-class
The Mercedes R-class has been tested 5,257 times in 2024 MOT data across 8 model years (2006 to 2013), with an average pass rate of 81%. That's close to the national average of 82%. Available as diesel and petrol.
Best and Worst Years
The 2011 model is the most reliable with a 92% pass rate from 1,578 tests. The 2007 model has the lowest at 74%. With a 18 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Newer MERCEDES R-CLASSs show better MOT pass rates than older ones, with an average improvement of 7 percentage points.
Mileage Across Years
The oldest model in our data (2006) averages 130,199 miles, while the newest (2013) averages 103,868 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.
Compared to the Mercedes brand average of 87%, the R-class is 6 points lower, placing it among the less reliable Mercedes models.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.