2006 Bentley Arnage — MOT failures & pass rate
Across 456 MOT tests, the 2006 Bentley Arnage recorded a 91.7% pass rate. All cars of a similar age fail 27.4% of the time, so this is 19.1pp better than the group it competes with. Failures cluster in brakes, lighting & signalling and emissions & environmental.
What the MOT record shows
No single area dominates — brakes (4.8%) and lighting & signalling (3.3%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are rbt (sp), headlamp and headlamp aim — rbt (sp) alone was recorded 17 times.
Mileage matters less than usual here: the 2006 Arnage fails 8.9% of the time in the 0-30k band and 12.5% at 60-90k, a spread of only 3.6 points.
Advisories point at the next bill rather than this one: brakes was flagged on 10.1% of tests without failing them.
The trend is improving — the fail rate fell from 9.4% in 2021 to 5.9% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 4.8% | 22 |
| 2 | Lighting & signalling | 3.3% | 15 |
| 3 | Emissions & environmental | 1.3% | 6 |
| 4 | Seat belts & restraints | 1.3% | 6 |
| 5 | Body, structure & corrosion | 1.1% | 5 |
| 6 | Suspension | 0.9% | 4 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Rbt (sp) | 17 |
| 2 | Headlamp | 11 |
| 3 | Headlamp aim | 7 |
| 4 | Malfunction indicator lamp | 5 |
| 5 | SRS malfunction indicator lamp | 5 |
| 6 | Exhaust system | 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 | Brakes | 10.1% | 46 |
| 2 | Tyres | 9.4% | 43 |
| 3 | Suspension | 6.1% | 28 |
| 4 | Steering | 2.9% | 13 |
| 5 | Other defects | 2.0% | 9 |
| 6 | Visibility | 1.5% | 7 |
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 | 124 | 8.9% |
| 30-60k | 199 | 5.5% |
| 60-90k | 112 | 12.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 96 | 9.4% |
| 2022 | 86 | 4.7% |
| 2023 | 96 | 10.4% |
| 2024 | 93 | 10.8% |
| 2025 | 85 | 5.9% |
What to check before buying a 2006 Arnage
On a 2006 Arnage, brakes is what the MOT record says goes wrong most — it appeared in 4.8% of tests. Check these areas before you commit.
- Brakes (4.8% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Lighting & signalling (3.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Emissions & environmental (1.3% 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 2006 Bentley Arnages pass their MOT?
91.7% of the 456 2006 Bentley Arnage MOT tests in this dataset passed — a 8.3% fail rate.
What is the most common MOT failure on a 2006 Bentley Arnage?
Brakes, recorded in 4.8% of tests, followed by lighting & signalling (3.3%).
Does the 2006 Arnage get worse with mileage?
Its MOT fail rate rises from 8.9% in the 0-30k band to 12.5% in the 60-90k band.
Methodology & source. Based on 456 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.