MOT data by first-use year
2021 Mercedes-Benz EQC: MOT fail rate and common problems
DVSA MOT tests 2022–2025 · 8,221 MOT tests · Updated
14.6% of 2021 Mercedes-Benz EQC cars failed their MOT at 4 years; measured against vehicles the same age and test year, about the same as the 2020 and 2022 cars (8,221 MOT tests) [1].
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- +5.3 to +1.9 points: the gap to all class 4 vehicles the same age and test year, from 3 to 4 years, 8,221 MOT tests
- Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords: fails 2.2–2.8× as often as all class 4 vehicles the same age at 4 years, 6,945 MOT tests of Mercedes-Benz EQC cars first used 2019–2021
- 30,000 to 60,000 miles: 14.2% of Mercedes-Benz EQC cars first used 2019–2021 failed at 4 years, against 13.5% at under 30,000 miles, 6,300 MOT tests
Engine, fuel and mileage decide where one vehicle sits within these figures. Check the reg first.
Figures are for 2021 Mercedes-Benz EQC cars as a group, not for one car.
- Fail rate at 4 years (2025)
- 14.6%
- vs 12.7% for all class 4 vehicles tested at 4 years in 2025
- 4,078 MOT tests
- Gap to all class 4, same age and year
- +3.6 pts
- over ages 3–4: +1.8 to +5.3 pts
- 8,221 MOT tests
- Against the 2020 and 2022 cars
- +0.3 pts
- 95% range −1.3 to +1.9 pts, same ages, each against its own test year
- 8,221 MOT tests
- MOT tests of 2021 cars
- 8,221
- tested 2024–2025, 2 ages with 1,000+ tests
- 8,221 MOT tests
About the same as the 2020 and 2022 cars: +0.3 points at the same ages (3–4), each year against all class 4 vehicles the same age tested in its own year; 95% range −1.3 to +1.9, from 8,221 MOT tests of 2021 cars and 10,899 of the 2020 and 2022 cars. Not adjusted for mileage.
Every Mercedes-Benz EQC year against all class 4 vehicles the same age
2021 Mercedes-Benz EQC fail rate at each MOT
From 2024 to 2025, as these cars went from 3 to 4 years old, the fail rate went from 17.7% to 14.6%, and the gap to all class 4 vehicles the same age and test year from +5.3 to +1.9 points. The widest gap was at 3 years (+5.3 points, 4,143 MOT tests).
| Test year | Age | Fail rate | 95% range | MOT tests | All class 4, same age and year | Gap |
|---|---|---|---|---|---|---|
| 2024 | 3 years | 17.7% | 16.6%–18.9% | 4,143 | 12.4% | +5.3 pts |
| 2025 | 4 years | 14.6% | 13.5%–15.7% | 4,078 | 12.7% | +1.9 pts |
All class 4: every class 4 vehicle (cars and light vans) tested at that age in the same test year.
2021 against the 2020 and 2022 cars, age by age
| Age | 2021 | Years either side |
|---|---|---|
| 3 years | 17.7% 4,143 MOT tests, tested 2024 | 2020: 14.5% (2,706, tested 2023) 2022: 18.1% (5,470, tested 2025) |
| 4 years | 14.6% 4,078 MOT tests, tested 2025 | 2020: 14.5% (2,723, tested 2024) |
Each year was tested in a different calendar year; the verdict compares each against all class 4 vehicles the same age tested in its own year.
What fails on a Mercedes-Benz EQC at 4 years
All Mercedes-Benz EQC MOTs at 4 years, cars first used 2019–2021 (6,945 MOT tests; DVSA item counts are not split by first-use year). The most common fail items: tyre with cords exposed (4.7 per 100 MOT tests, a wear item), tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords (3.9 per 100 MOT tests, a wear item) and suspension ball joint worn (2.0 per 100 MOT tests).
Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords: fails 2.2–2.8× as often as all class 4 vehicles the same age, across at least 3 ages.
Mileage and the fail rate at 4 years
Mercedes-Benz EQC cars first used 2019–2021 at 30,000 to 60,000 miles failed 14.2% of MOTs at 4 years (3,962 MOT tests), against 13.5% at under 30,000 miles (2,338 MOT tests). All class 4 vehicles: 15.5% and 10.2%.
Car tax and ULEZ for a 2021 car
A car first registered in the UK in 2021 was issued a 70 (January–February), 21 (March–August) or 71 (September–December) plate, unless it was registered in Northern Ireland (no age identifier) or has since moved to a private plate. An imported one is plated when first registered here, so its plate can be newer than its first-use year. 21 plates
A 2021 car pays the standard rate after its first year. Electric cars have paid vehicle tax since 1 April 2025; the expensive car supplement does not apply to electric cars registered before that date. [2] Car tax calculator for a 2021 electric car
Fully electric cars do not pay the London ULEZ charge. [3] ULEZ checker
Buying a Mercedes-Benz EQC? Check that exact car before the viewing.
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- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
Questions people ask
What is the MOT fail rate of a 2021 Mercedes-Benz EQC?
14.6% at 4 years (tested 2025), from 4,078 MOT tests, against 12.7% for all class 4 vehicles tested at 4 years in 2025.
Does the 2021 Mercedes-Benz EQC fail more MOTs than the 2020 and 2022?
0.3 percentage points apart at the same ages (3–4), each against all class 4 vehicles the same age and test year, from 8,221 MOT tests (95% range −1.3 to +1.9), so about the same.
At what ages were 2021 Mercedes-Benz EQC cars MOT tested in the data?
2 ages with at least 1,000 MOT tests: 3–4 years, tested 2024–2025, 8,221 MOT tests in all.
What fails most on a Mercedes-Benz EQC at 4 years?
4.7 in 100 MOT tests failed on tyre with cords exposed, the most common fail item (a wear item); the most common non-wear item was suspension ball joint worn (2.0 in 100). From 6,945 MOT tests of Mercedes-Benz EQC cars first used 2019–2021, not only 2021.
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 8,221 MOT tests. Accessed 7 Oct 2026.
- GOV.UK, Vehicle tax rates. Rules, not drawn from the MOT data.
- Transport for London, Ultra Low Emission Zone. Rules, not drawn from the MOT data.
Cars tested at 4 years are compared with every class 4 vehicle tested at 4 years in the same test year. These rates are not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare