Aston Martin Dbx V8 MOT pass rate & common failures
Across 4 model years and 1,582 tests, the Aston Martin Dbx V8 passes its MOT 95.9% of the time. That is 4.6 percentage points better than all cars of a similar age, which fail at 8.7%. Its most common failure areas are tyres, lighting & signalling and other defects.
What the MOT record shows
No single area dominates — tyres (3.3%) and lighting & signalling (1.3%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, tread depth and registration plates — headlamp aim alone was recorded 30 times.
Tyres is the most common advisory, noted on 13.7% of tests — work that passed today but is likely due soon.
How it compares
By model year
Every Dbx V8 model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2020 | 481 | 95.6% | 4.4% | Tyres |
| 2021 | 669 | 96.6% | 3.4% | Tyres |
| 2022 | 398 | 95.5% | 4.5% | Tyres |
| 2023 | 34 | 91.2% | 8.8% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 3.3% | 52 |
| 2 | Lighting & signalling | 1.3% | 21 |
| 3 | Other defects | 0.5% | 8 |
| 4 | Visibility | 0.4% | 7 |
| 5 | Brakes | 0.3% | 4 |
| 6 | Emissions & environmental | 0.1% | 2 |
| 7 | Suspension | 0.1% | 2 |
| 8 | Body, structure & corrosion | 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 | Headlamp aim | 30 |
| 2 | Tread depth | 19 |
| 3 | Registration plates | 12 |
| 4 | Washers | 4 |
| 5 | Wipers | 2 |
| 6 | Linkage | 2 |
| 7 | Brake pads | 2 |
| 8 | Individual direction indicators | 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 | 13.7% | 216 |
| 2 | Other defects | 2.8% | 45 |
| 3 | Brakes | 2.8% | 45 |
| 4 | Visibility | 1.1% | 18 |
| 5 | Emissions & environmental | 0.4% | 7 |
| 6 | Suspension | 0.2% | 3 |
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 | 1,184 | 3.3% |
| 30-60k | 375 | 6.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 169 | 4.7% |
| 2024 | 495 | 3.0% |
| 2025 | 917 | 4.6% |
What to check before buying a Aston Martin Dbx V8
- Tyres (3.3% 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.
- Lighting & signalling (1.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Other defects (0.5% 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
What is the MOT pass rate for the Aston Martin Dbx V8?
95.9% of the 1,582 Aston Martin Dbx V8 MOT tests in this dataset passed, a 4.1% fail rate, across model years 2020–2023.
What does the Aston Martin Dbx V8 most often fail its MOT on?
Tyres, recorded in 3.3% of tests, then lighting & signalling (1.3%).
Methodology & source. Based on 1,582 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.