2015 Peugeot Horizon — MOT failures & pass rate
The 2015 Peugeot Horizon passed 81.7% of its 7,400 recorded MOT tests. Against all cars of a similar age (16.4% fail rate), the 2015 Horizon comes out 1.8pp worse. Failures cluster in lighting & signalling, body, structure & corrosion and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (9.8%) and body, structure & corrosion (8.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are joints, coil spring and stop lamp — joints alone was recorded 514 times.
A 150k+ example is materially riskier than a 0-30k one: 26.0% versus 12.1%.
The petrol cars hold up better: 16.1% fail against 19.3% for diesel, a 3.2-point gap across 7,400 tests.
Tyres is the most common advisory, noted on 19.0% of tests — work that passed today but is likely due soon.
The trend is worsening — 15.6% of tests failed in 2021 against 21.7% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.8% | 722 |
| 2 | Body, structure & corrosion | 8.6% | 635 |
| 3 | Brakes | 5.1% | 378 |
| 4 | Suspension | 5.1% | 375 |
| 5 | Tyres | 4.2% | 308 |
| 6 | Visibility | 2.8% | 209 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Joints | 514 |
| 2 | Coil spring | 276 |
| 3 | Stop lamp | 243 |
| 4 | Position lamp | 242 |
| 5 | Exhaust system | 188 |
| 6 | Headlamp aim | 185 |
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 | 19.0% | 1,404 |
| 2 | Suspension | 17.9% | 1,326 |
| 3 | Brakes | 12.2% | 904 |
| 4 | Body, structure & corrosion | 7.5% | 555 |
| 5 | Lighting & signalling | 6.3% | 468 |
| 6 | Other defects | 4.5% | 333 |
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 | 2,847 | 12.1% |
| 30-60k | 2,532 | 19.8% |
| 60-90k | 882 | 24.4% |
| 90-120k | 446 | 26.5% |
| 120-150k | 320 | 23.4% |
| 150k+ | 373 | 26.0% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 5,085 | 19.3% |
| Petrol | 2,315 | 16.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 1,498 | 15.6% |
| 2022 | 1,477 | 16.4% |
| 2023 | 1,477 | 17.5% |
| 2024 | 1,454 | 20.1% |
| 2025 | 1,494 | 21.7% |
What to check before buying a 2015 Horizon
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 9.8% of tests. Start there.
- Lighting & signalling (9.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Body, structure & corrosion (8.6% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
- Brakes (5.1% 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 2015 Peugeot Horizons pass their MOT?
81.7% of the 7,400 2015 Peugeot Horizon MOT tests in this dataset passed — a 18.3% fail rate.
What is the most common MOT failure on a 2015 Peugeot Horizon?
Lighting & signalling, recorded in 9.8% of tests, followed by body, structure & corrosion (8.6%).
Does the 2015 Horizon get worse with mileage?
Its MOT fail rate rises from 12.1% in the 0-30k band to 26.0% in the 150k+ band.
Methodology & source. Based on 7,400 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.