2015 Mercedes-Benz Cla: MOT pass rate and reliability

80% of 2015 Mercedes-Benz Clas pass the MOT first time, measured across 6,927 DVSA tests on that model year alone. The average one had covered 82,834 miles.

How the 2015 compares

  • Against all Mercedes-Benz Clas (83.3%, 57,347 tests): -3.3 points
  • Against all 2015 cars (78.3%): +1.7 points
  • National first-time pass rate, all cars and years: 77%

Every Mercedes-Benz Cla model year

Pass rates fall as cars age, so the only fair comparison for a 2015 car is other cars of the same age. The full run for the Mercedes-Benz Cla:

Year Pass rate Tests Avg mileage
2013 76.3% 2,121 93,573
2014 77.5% 4,339 88,973
2015 80% 6,927 82,834
2016 80.7% 7,698 74,681
2017 81.7% 8,251 64,699
2018 84.5% 8,357 52,319
2019 86.2% 7,879 41,759
2020 87.6% 5,104 36,058
2021 89% 6,371 29,097
2022 94.6% 295 24,457

What this means if you are buying a 2015 Cla

The 2015 is a weaker year for this model, passing 3.3 points less often than the Mercedes-Benz Cla average. Some of that is simply age, so compare it against the 2015 figure for all cars above rather than against newer examples. Check the exact car with the free MOT history checker before you buy, and run its VIN and mileage through our free VIN decoder and clocking check.

What an 11-year-old car fails on

A 2015 car is 11 years old now, and age drives the failure mix more than the badge does. Across all cars tested, these are the categories that actually cause failures:

  • Lights and electrical: 10.36% of all cars tested
  • Suspension: 8.65% of all cars tested
  • Tyres: 6.23% of all cars tested
  • Brakes: 6.1% of all cars tested
  • Visibility: wipers, washers, glass: 4.65% of all cars tested
  • Body, chassis and structure: 3.18% of all cars tested

That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures. On a 2015 Mercedes-Benz Cla the average at test was 82,834 miles, so treat anything far above that as a car that has worked harder than its peers, and anything far below as one worth checking for the faults that come from standing still.

The strongest year for this model is 2022 at 94.6%, and the weakest in our data is 2013 at 76.3%. That 18.3 point spread across the model's life is why comparing a 2015 car against a newer one tells you very little.

Nearby model years

All Mercedes-Benz Cla MOT data · Every model