2021 Mercedes-Benz Glb 220 Amg Line Prem + D 4m A: MOT pass rate and reliability

93.7% of 2021 Mercedes-Benz Glb 220 Amg Line Prem + D 4m As pass the MOT first time, measured across 493 DVSA tests on that model year alone. The average one had covered 28,450 miles.

How the 2021 compares

  • Against all Mercedes-Benz Glb 220 Amg Line Prem + D 4m As (92.3%, 835 tests): +1.4 points
  • Against all 2021 cars (90%): +3.7 points
  • National first-time pass rate, all cars and years: 77%

Every Mercedes-Benz Glb 220 Amg Line Prem + D 4m 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 Glb 220 Amg Line Prem + D 4m A:

Year Pass rate Tests Avg mileage
2020 91.3% 1,530 35,840
2020 90.5% 315 33,643
2021 92.7% 841 29,719
2021 93.7% 493 28,450

What this means if you are buying a 2021 Glb 220 Amg Line Prem + D 4m A

The 2021 sits close to the Mercedes-Benz Glb 220 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 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 Glb 220 Amg Line Prem + D 4m A the average at test was 28,450 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 93.7%, ahead of every other year we hold data for.

Nearby model years

All Mercedes-Benz Glb 220 Amg Line Prem + D 4m A MOT data · Every model