2006 Mazda Eunos — MOT failures & pass rate
292 MOT tests on the 2006 Mazda Eunos are in this dataset, and 77.7% of them passed. Against all cars of a similar age (27.3% fail rate), the 2006 Eunos comes out 5.1pp better. Failures cluster in lighting & signalling, emissions & environmental and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (12.0%) and emissions & environmental (9.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are catalyst emissions, headlamp aim and prescribed areas — catalyst emissions alone was recorded 39 times.
Condition tracks the odometer closely. Failures run at 12.2% in the 60-90k band and 28.2% in the 150k+ band, a 16.0-point spread — more than double.
Advisories point at the next bill rather than this one: suspension was flagged on 23.3% of tests without failing them.
The trend is improving — the fail rate fell from 24.3% in 2021 to 21.4% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 12.0% | 35 |
| 2 | Emissions & environmental | 9.9% | 29 |
| 3 | Brakes | 8.2% | 24 |
| 4 | Suspension | 7.2% | 21 |
| 5 | Visibility | 4.1% | 12 |
| 6 | Body, structure & corrosion | 3.8% | 11 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 39 |
| 2 | Headlamp aim | 30 |
| 3 | Prescribed areas | 15 |
| 4 | Position lamp | 15 |
| 5 | Service brake performance | 13 |
| 6 | Rear fog lamp | 12 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 23.3% | 68 |
| 2 | Brakes | 19.9% | 58 |
| 3 | Emissions & environmental | 18.5% | 54 |
| 4 | Tyres | 15.1% | 44 |
| 5 | Body, structure & corrosion | 12.3% | 36 |
| 6 | Lighting & signalling | 7.5% | 22 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 60-90k | 49 | 12.2% |
| 90-120k | 76 | 23.7% |
| 120-150k | 83 | 22.9% |
| 150k+ | 78 | 28.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 74 | 24.3% |
| 2022 | 63 | 14.3% |
| 2023 | 65 | 24.6% |
| 2024 | 48 | 27.1% |
| 2025 | 42 | 21.4% |
What to check before buying a 2006 Eunos
On a 2006 Eunos, lighting & signalling is what the MOT record says goes wrong most — it appeared in 12.0% of tests. Check these areas before you commit.
- Lighting & signalling (12.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Emissions & environmental (9.9% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Brakes (8.2% 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.
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 Mazda Eunoss pass their MOT?
77.7% of the 292 2006 Mazda Eunos MOT tests in this dataset passed — a 22.3% fail rate.
What is the most common MOT failure on a 2006 Mazda Eunos?
Lighting & signalling, recorded in 12.0% of tests, followed by emissions & environmental (9.9%).
Does the 2006 Eunos get worse with mileage?
Its MOT fail rate rises from 12.2% in the 60-90k band to 28.2% in the 150k+ band.
Methodology & source. Based on 292 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.