2021 Bentley Continental Gt V8 Auto — MOT failures & pass rate
Across 681 MOT tests analysed for the 2021 Bentley Continental Gt V8 Auto, the most common recorded failure areas were tyres, emissions & environmental and other defects. Its pass rate of 95.2% 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 | 3.2% | 22 |
| 2 | Emissions & environmental | 0.9% | 6 |
| 3 | Other defects | 0.7% | 5 |
| 4 | Brakes | 0.1% | 1 |
| 5 | Lighting & signalling | 0.1% | 1 |
| 6 | Road wheels | 0.1% | 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 | Malfunction indicator lamp | 4 |
| 3 | Catalyst emissions | 2 |
| 4 | Headlamp aim | 2 |
| 5 | Tread depth | 2 |
| 6 | Tyre pressure monitoring system | 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 | 10.4% | 71 |
| 2 | Other defects | 2.5% | 17 |
| 3 | Visibility | 1.0% | 7 |
| 4 | Road wheels | 0.3% | 2 |
| 5 | Suspension | 0.1% | 1 |
| 6 | Brakes | 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 | 651 | 4.5% |
| 30-60k | 30 | 13.3% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 332 | 6.3% |
| 2025 | 332 | 3.6% |
What to check before buying a 2021 Continental Gt V8 Auto
Before buying a 2021 Bentley Continental Gt V8 Auto, focus on the areas it most often fails on. Tyres accounted for 3.2% of tests for this year.
- Tyres (3.2% 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.
- Emissions & environmental (0.9% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Other defects (0.7% of tests): Miscellaneous items not in the main categories. Typical repair: varies.
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 Bentley Continental Gt V8 Autos pass their MOT?
95.2% of the 681 2021 Bentley Continental Gt V8 Auto MOT tests in this dataset passed — a 4.9% fail rate.
What is the most common MOT failure on a 2021 Bentley Continental Gt V8 Auto?
Tyres, recorded in 3.2% of tests, followed by emissions & environmental (0.9%).
Does the 2021 Continental Gt V8 Auto get worse with mileage?
Its MOT fail rate rises from 4.5% in the 0-30k band to 13.3% in the 30-60k band.
Methodology & source. Based on 681 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.