2021 Audi Rs Q8 Vsprung Mhev Quat A — MOT failures & pass rate
Across 364 MOT tests analysed for the 2021 Audi Rs Q8 Vsprung Mhev Quat A, the most common recorded failure areas were tyres, other defects and emissions & environmental. Its pass rate of 93.7% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.9% | 14 |
| 2 | Other defects | 1.1% | 4 |
| 3 | Emissions & environmental | 0.8% | 3 |
| 4 | Visibility | 0.8% | 3 |
| 5 | Suspension | 0.3% | 1 |
| 6 | Brakes | 0.3% | 1 |
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 | 7 |
| 2 | Tread depth | 5 |
| 3 | Malfunction indicator lamp | 3 |
| 4 | Washers | 2 |
| 5 | Headlamp cleaning device | 2 |
| 6 | Brake pads | 1 |
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 | 18.4% | 67 |
| 2 | Other defects | 5.5% | 20 |
| 3 | Brakes | 3.3% | 12 |
| 4 | Visibility | 1.9% | 7 |
| 5 | Suspension | 0.5% | 2 |
| 6 | Lighting & signalling | 0.3% | 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 | 192 | 5.2% |
| 30-60k | 167 | 7.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 170 | 6.5% |
| 2025 | 181 | 6.1% |
What to check before buying a 2021 Rs Q8 Vsprung Mhev Quat A
Before buying a 2021 Audi Rs Q8 Vsprung Mhev Quat A, focus on the areas it most often fails on. Tyres accounted for 3.9% of tests for this year.
- Tyres (3.9% 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 (1.1% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
- Emissions & environmental (0.8% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
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 Rs Q8 Vsprung Mhev Quat As pass their MOT?
93.7% of the 364 2021 Audi Rs Q8 Vsprung Mhev Quat A MOT tests in this dataset passed — a 6.3% fail rate.
What is the most common MOT failure on a 2021 Audi Rs Q8 Vsprung Mhev Quat A?
Tyres, recorded in 3.9% of tests, followed by other defects (1.1%).
Does the 2021 Rs Q8 Vsprung Mhev Quat A get worse with mileage?
Its MOT fail rate rises from 5.2% in the 0-30k band to 7.8% in the 30-60k band.
Methodology & source. Based on 364 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.