2020 Mercedes-Benz Glc 300 Amg Line Prem D 4m A: MOT pass rate and reliability

91.9% of 2020 Mercedes-Benz Glc 300 Amg Line Prem D 4m As pass the MOT first time, measured across 1,694 DVSA tests on that model year alone. The average one had covered 35,924 miles.

How the 2020 compares

  • Against all Mercedes-Benz Glc 300 Amg Line Prem D 4m As (90.5%, 3,398 tests): +1.4 points
  • Against all 2020 cars (89.4%): +2.5 points
  • National first-time pass rate, all cars and years: 77%

Every Mercedes-Benz Glc 300 Amg Line Prem D 4m A model year

Pass rates fall as cars age, so the only fair comparison for a 2020 car is other cars of the same age. The full run for the Mercedes-Benz Glc 300 Amg Line Prem D 4m A:

Year Pass rate Tests Avg mileage
2019 91.3% 859 42,525
2019 90.8% 1,060 43,857
2020 90.1% 1,901 38,140
2020 91.9% 1,694 35,924
2021 91.9% 934 29,338
2021 90% 598 33,689

What this means if you are buying a 2020 Glc 300 Amg Line Prem D 4m A

The 2020 sits close to the Mercedes-Benz Glc 300 Amg Line Prem D 4m A average, so there is no strong model-year signal either way. Judge the individual car on its own history. 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 6-year-old car fails on

A 2020 car is 6 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 below average for a car this age, worth a mileage-consistency check since an unusually low reading is sometimes clocking rather than luck. On a 2020 Mercedes-Benz Glc 300 Amg Line Prem D 4m A the average at test was 35,924 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.

2020 is the strongest year on record for this model at 91.9%, ahead of every other year we hold data for.

Nearby model years

All Mercedes-Benz Glc 300 Amg Line Prem D 4m A MOT data · Every model