2021 Mercedes-Benz Cla 220 Amg Line Premium D A: MOT pass rate and reliability

89.2% of 2021 Mercedes-Benz Cla 220 Amg Line Premium D As pass the MOT first time, measured across 982 DVSA tests on that model year alone. The average one had covered 28,760 miles.

How the 2021 compares

  • Against all Mercedes-Benz Cla 220 Amg Line Premium D As (87.1%, 1,129 tests): +2.1 points
  • Against all 2021 cars (90%): -0.8 points
  • National first-time pass rate, all cars and years: 77%

Every Mercedes-Benz Cla 220 Amg Line Premium D A model year

Pass rates fall as cars age, so the only fair comparison for a 2021 car is other cars of the same age. The full run for the Mercedes-Benz Cla 220 Amg Line Premium D A:

Year Pass rate Tests Avg mileage
2020 88.3% 223 42,298
2020 90.5% 952 36,818
2021 87.6% 707 38,778
2021 89.2% 982 28,760

What this means if you are buying a 2021 Cla 220 Amg Line Premium D A

The 2021 is one of the stronger years for this model, passing 2.1 points more often than the Mercedes-Benz Cla 220 Amg Line Premium D A average. That is a point in its favour, though condition and service history still matter more than the model year. 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 a 5-year-old car fails on

A 2021 car is 5 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 low mileage, which usually means light urban use. Short journeys are harder on batteries, brakes and exhausts than motorway miles, so do not assume low miles means low wear. On a 2021 Mercedes-Benz Cla 220 Amg Line Premium D A the average at test was 28,760 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 2020 at 90.5%, and the weakest in our data is 2021 at 87.6%. That 2.9 point spread across the model's life is why comparing a 2021 car against a newer one tells you very little.

Nearby model years

All Mercedes-Benz Cla 220 Amg Line Premium D A MOT data · Every model