2018 Fiat Hymer — MOT failures & pass rate
The 2018 Fiat Hymer passed 94.1% of its 853 recorded MOT tests. All cars of a similar age fail 11.0% of the time, so this is 5.2pp better than the group it competes with. Failures cluster in lighting & signalling, visibility and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (3.8%) and visibility (2.9%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are wipers, headlamp aim and service brake performance — wipers alone was recorded 27 times.
The trend is worsening — 4.1% of tests failed in 2021 against 7.4% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 3.8% | 32 |
| 2 | Visibility | 2.9% | 25 |
| 3 | Brakes | 1.5% | 13 |
| 4 | Seat belts & restraints | 0.5% | 4 |
| 5 | Emissions & environmental | 0.4% | 3 |
| 6 | Suspension | 0.4% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 27 |
| 2 | Headlamp aim | 24 |
| 3 | Service brake performance | 6 |
| 4 | Rbt (sp) | 5 |
| 5 | Daytime running lamps | 4 |
| 6 | Outline marker lamp | 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 | Tyres | 5.4% | 46 |
| 2 | Lighting & signalling | 2.3% | 20 |
| 3 | Visibility | 2.0% | 17 |
| 4 | Brakes | 1.8% | 15 |
| 5 | Other defects | 1.2% | 10 |
| 6 | Suspension | 0.6% | 5 |
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 | 759 | 5.3% |
| 30-60k | 90 | 10.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 169 | 4.1% |
| 2022 | 174 | 6.3% |
| 2023 | 171 | 5.3% |
| 2024 | 163 | 6.1% |
| 2025 | 176 | 7.4% |
What to check before buying a 2018 Hymer
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 3.8% of tests. Start there.
- Lighting & signalling (3.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (2.9% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Brakes (1.5% 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 2018 Fiat Hymers pass their MOT?
94.1% of the 853 2018 Fiat Hymer MOT tests in this dataset passed — a 5.9% fail rate.
What is the most common MOT failure on a 2018 Fiat Hymer?
Lighting & signalling, recorded in 3.8% of tests, followed by visibility (2.9%).
Does the 2018 Hymer get worse with mileage?
Its MOT fail rate rises from 5.3% in the 0-30k band to 10.0% in the 30-60k band.
Methodology & source. Based on 853 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.