2021 Audi E-Tron Black 50 Quat — MOT failures & pass rate
Across 1,017 MOT tests analysed for the 2021 Audi E-Tron Black 50 Quat, the most common recorded failure areas were tyres, other defects and visibility. Its pass rate of 90.7% was in line with the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 7.1% | 72 |
| 2 | Other defects | 1.6% | 16 |
| 3 | Visibility | 1.1% | 11 |
| 4 | Lighting & signalling | 0.8% | 8 |
| 5 | Brakes | 0.5% | 5 |
| 6 | Seat belts & restraints | 0.3% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Registration plates | 24 |
| 2 | Tread depth | 18 |
| 3 | Headlamp aim | 8 |
| 4 | Washers | 6 |
| 5 | Wipers | 5 |
| 6 | Service brake performance | 4 |
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 | 25.9% | 263 |
| 2 | Other defects | 9.1% | 93 |
| 3 | Visibility | 3.4% | 35 |
| 4 | Brakes | 1.5% | 15 |
| 5 | Suspension | 0.3% | 3 |
| 6 | Emissions & environmental | 0.1% | 1 |
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 | 436 | 8.3% |
| 30-60k | 523 | 9.9% |
| 60-90k | 56 | 12.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 519 | 10.4% |
| 2025 | 490 | 8.4% |
What to check before buying a 2021 E-Tron Black 50 Quat
Before buying a 2021 Audi E-Tron Black 50 Quat, focus on the areas it most often fails on. Tyres accounted for 7.1% of tests for this year.
- Tyres (7.1% 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.
- Other defects (1.6% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
- Visibility (1.1% 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.
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 Audi E-Tron Black 50 Quats pass their MOT?
90.7% of the 1,017 2021 Audi E-Tron Black 50 Quat MOT tests in this dataset passed — a 9.3% fail rate.
What is the most common MOT failure on a 2021 Audi E-Tron Black 50 Quat?
Tyres, recorded in 7.1% of tests, followed by other defects (1.6%).
Does the 2021 E-Tron Black 50 Quat get worse with mileage?
Its MOT fail rate rises from 8.3% in the 0-30k band to 12.5% in the 60-90k band.
Methodology & source. Based on 1,017 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.