2021 Mercedes-Benz Glc: MOT pass rate and reliability

93.1% of 2021 Mercedes-Benz Glcs pass the MOT first time, measured across 2,964 DVSA tests on that model year alone. The average one had covered 30,183 miles.

How the 2021 compares

  • Against all Mercedes-Benz Glcs (88.2%, 64,573 tests): +4.9 points
  • Against all 2021 cars (90%): +3.1 points
  • National first-time pass rate, all cars and years: 77%

Every Mercedes-Benz Glc 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 Glc:

Year Pass rate Tests Avg mileage
2015 84.2% 1,331 76,551
2016 85.8% 9,213 71,444
2017 86.5% 12,666 61,987
2018 87.3% 19,113 51,546
2019 90.4% 14,632 42,672
2020 91.9% 4,501 37,176
2021 93.1% 2,964 30,183

What this means if you are buying a 2021 Glc

The 2021 is one of the stronger years for this model, passing 4.9 points more often than the Mercedes-Benz Glc 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 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 2021 Mercedes-Benz Glc the average at test was 30,183 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.

2021 is the strongest year on record for this model at 93.1%, ahead of every other year we hold data for.

Nearby model years

All Mercedes-Benz Glc MOT data · Every model