2003 Fiat Motor-Home — MOT failures & pass rate
Across 327 MOT tests, the 2003 Fiat Motor-Home recorded an 81.0% pass rate. Against all cars of a similar age (27.6% fail rate), the 2003 Motor-Home comes out 8.7pp better. Failures cluster in lighting & signalling, brakes and body, structure & corrosion.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 11.6% of tests against 7.6% for the next-worst category.
At component level the recurring items are outline marker lamp, service brake performance and stop lamp — outline marker lamp alone was recorded 23 times.
Brakes is the most common advisory, noted on 22.3% of tests — work that passed today but is likely due soon.
The trend is worsening — 21.3% of tests failed in 2021 against 28.3% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 11.6% | 38 |
| 2 | Brakes | 7.6% | 25 |
| 3 | Body, structure & corrosion | 5.2% | 17 |
| 4 | Visibility | 4.9% | 16 |
| 5 | Suspension | 4.6% | 15 |
| 6 | Tyres | 2.1% | 7 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Outline marker lamp | 23 |
| 2 | Service brake performance | 18 |
| 3 | Stop lamp | 12 |
| 4 | Headlamp aim | 12 |
| 5 | Washers | 11 |
| 6 | Position lamp | 11 |
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 | 22.3% | 73 |
| 2 | Suspension | 19.0% | 62 |
| 3 | Body, structure & corrosion | 17.7% | 58 |
| 4 | Lighting & signalling | 11.0% | 36 |
| 5 | Tyres | 9.8% | 32 |
| 6 | Steering | 7.3% | 24 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 202 | 18.8% |
| 60-90k | 76 | 15.8% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 89 | 21.3% |
| 2022 | 68 | 19.1% |
| 2023 | 57 | 10.5% |
| 2024 | 53 | 13.2% |
| 2025 | 60 | 28.3% |
What to check before buying a 2003 Motor-Home
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 11.6% of tests. Start there.
- Lighting & signalling (11.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (7.6% 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.
- Body, structure & corrosion (5.2% 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+.
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 2003 Fiat Motor-Homes pass their MOT?
81.0% of the 327 2003 Fiat Motor-Home MOT tests in this dataset passed — a 19.0% fail rate.
What is the most common MOT failure on a 2003 Fiat Motor-Home?
Lighting & signalling, recorded in 11.6% of tests, followed by brakes (7.6%).
Does the 2003 Motor-Home get worse with mileage?
Its MOT fail rate rises from 18.8% in the 30-60k band to 15.8% in the 60-90k band.
Methodology & source. Based on 327 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.