2021 Mercedes-Benz Eqa 250+ Amg Line + — MOT failures & pass rate
Across 8,765 MOT tests analysed for the 2021 Mercedes-Benz Eqa 250+ Amg Line +, the most common recorded failure areas were tyres, visibility and lighting & signalling. Its pass rate of 91.8% was in line with the average for cars of a similar age (91.2%). Higher-mileage examples failed more often — 11.8% in the 60-90k group versus 6.6% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.7% | 585 |
| 2 | Visibility | 1.5% | 131 |
| 3 | Lighting & signalling | 0.9% | 80 |
| 4 | Suspension | 0.5% | 43 |
| 5 | Other defects | 0.3% | 25 |
| 6 | Body, structure & corrosion | 0.2% | 15 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Tread depth | 178 |
| 2 | Wipers | 100 |
| 3 | Headlamp aim | 93 |
| 4 | Washers | 41 |
| 5 | Registration plates | 37 |
| 6 | Linkage ball joints | 24 |
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 | 27.5% | 2,407 |
| 2 | Other defects | 5.4% | 474 |
| 3 | Visibility | 3.4% | 300 |
| 4 | Suspension | 1.5% | 127 |
| 5 | Brakes | 1.1% | 101 |
| 6 | Lighting & signalling | 0.3% | 29 |
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 | 4,968 | 6.6% |
| 30-60k | 3,406 | 10.4% |
| 60-90k | 357 | 11.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 83 | 1.2% |
| 2024 | 4,423 | 9.3% |
| 2025 | 4,251 | 7.2% |
What to check before buying a 2021 Eqa 250+ Amg Line +
Before buying a 2021 Mercedes-Benz Eqa 250+ Amg Line +, focus on the areas it most often fails on. Tyres accounted for 6.7% of tests for this year.
- Tyres (6.7% 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.
- Visibility (1.5% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Lighting & signalling (0.9% 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 2021 Mercedes-Benz Eqa 250+ Amg Line +s pass their MOT?
91.8% of the 8,765 2021 Mercedes-Benz Eqa 250+ Amg Line + MOT tests in this dataset passed — a 8.2% fail rate.
What is the most common MOT failure on a 2021 Mercedes-Benz Eqa 250+ Amg Line +?
Tyres, recorded in 6.7% of tests, followed by visibility (1.5%).
Does the 2021 Eqa 250+ Amg Line + get worse with mileage?
Its MOT fail rate rises from 6.6% in the 0-30k band to 11.8% in the 60-90k band.
Methodology & source. Based on 8,765 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.