CarCostCheck

Mercedes Cla

Reliability, running costs, and MOT data across 10 years from 130,644 real MOT tests.

Avg Pass Rate

89%

Total Tests

130,644

Best Year

2022 (96%)

Years Covered

10

How reliable is the Mercedes Cla?

vs national average+7% (82% avg)
vs Mercedes brand average+2% (87% avg)
Best to worst year spread12 percentage points
Reliability trendImproving over years

Mercedes Cla by Year

YearPass RateTestsAvg Mileage
202296%74425,883 mi
202192%12,88828,983 mi
202091%11,03935,990 mi
201990%17,41941,662 mi
201889%18,05951,592 mi
201787%19,33363,934 mi
201687%18,32774,073 mi
201586%16,53282,370 mi
201485%11,12189,018 mi
201384%5,18293,382 mi

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About the Mercedes Cla

The Mercedes Cla has been tested 130,644 times in 2024 MOT data across 10 model years (2013 to 2022), with an average pass rate of 89%. 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 744 tests. The 2013 model has the lowest at 84%. The 12 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

Newer MERCEDES CLAs show better MOT pass rates than older ones, with an average improvement of 6 percentage points.

Mileage Across Years

The oldest model in our data (2013) averages 93,382 miles, while the newest (2022) averages 25,883 miles.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.