2020 Mercedes-Benz Eqc 400 Amg Line 4M — MOT failures & pass rate
Across 3,779 MOT tests analysed for the 2020 Mercedes-Benz Eqc 400 Amg Line 4M, the most common recorded failure areas were tyres, suspension and lighting & signalling. Its pass rate of 85.6% was below the average for cars of a similar age (90.5%). Higher-mileage examples failed more often — 19.0% in the 60-90k group versus 12.3% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 11.7% | 442 |
| 2 | Suspension | 2.3% | 87 |
| 3 | Lighting & signalling | 1.2% | 45 |
| 4 | Visibility | 0.8% | 31 |
| 5 | Road wheels | 0.6% | 24 |
| 6 | Other defects | 0.6% | 22 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Ball joint | 91 |
| 2 | Headlamp aim | 58 |
| 3 | Registration plates | 38 |
| 4 | Tread depth | 23 |
| 5 | Wipers | 16 |
| 6 | Washers | 13 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 25.0% | 946 |
| 2 | Other defects | 6.2% | 235 |
| 3 | Suspension | 5.2% | 195 |
| 4 | Brakes | 3.7% | 139 |
| 5 | Visibility | 3.0% | 114 |
| 6 | Road wheels | 0.6% | 21 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 1,667 | 12.3% |
| 30-60k | 1,803 | 15.6% |
| 60-90k | 284 | 19.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 1,231 | 14.1% |
| 2024 | 1,261 | 15.3% |
| 2025 | 1,269 | 13.9% |
What to check before buying a 2020 Eqc 400 Amg Line 4M
Before buying a 2020 Mercedes-Benz Eqc 400 Amg Line 4M, focus on the areas it most often fails on. Tyres accounted for 11.7% of tests for this year.
- Tyres (11.7% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Suspension (2.3% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Lighting & signalling (1.2% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2020 Mercedes-Benz Eqc 400 Amg Line 4Ms pass their MOT?
85.6% of the 3,779 2020 Mercedes-Benz Eqc 400 Amg Line 4M MOT tests in this dataset passed — a 14.4% fail rate.
What is the most common MOT failure on a 2020 Mercedes-Benz Eqc 400 Amg Line 4M?
Tyres, recorded in 11.7% of tests, followed by suspension (2.3%).
Does the 2020 Eqc 400 Amg Line 4M get worse with mileage?
Its MOT fail rate rises from 12.3% in the 0-30k band to 19.0% in the 60-90k band.
Methodology & source. Based on 3,779 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.