1,696 tests in 2025
Fiat Hymer reliability and MOT pass rate
79.4% passed first time. The 20.6% fail rate is 2.0 points better than the all-car average, on a median example 18 years old with 47,771 miles.
Pass rate
79.4%
22.6% of all cars failed; 20.6% of these did.
Fixed on the day
4.7%
Passed after a defect was put right during the visit.
Median at test
47,771 mi
18 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 225 | 3.6% |
| 6-9 years | 460 | 8.7% |
| 10-13 years | 66 | — |
| 14+ years | 943 | 30.9% |
What the Hymer fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Lamps, reflectors and electrical equipment6 dangerous56.4%
- Brakes27 dangerous44.1%
- Body, chassis, structure4 dangerous22.6%
- Visibility22.1%
- Suspension2 dangerous21.2%
- Noise, emissions and leaks1 dangerous9.7%
- Tyres21 dangerous7.4%
- Seat belts and supplementary restraint systems6.9%
Is the Hymer getting worse?
The fail rate fell 1.6 points to 20.1% from 2022 to 2025, but the median one tested got 1 year younger over the same period as newer examples joined the fleet, so this is not a like-for-like comparison.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 1,343 | 16 | 21.7% | 22.5% | |
| 2023 | 1,423 | 16 | 18.7% | 22.8% | |
| 2024 | 1,274 | 16 | 21% | 23.2% | |
| 2025 | 1,370 | 15 | 20.1% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Hymer at its test that year, and it is the number to watch: across the whole fleet each extra year of age adds roughly 1.9 points to the fail rate, so a model whose age and fail rate rise together is simply getting older.
The exact defects that fail it
Every failure item DVSA recorded against a Hymer in 2025, counted by how many tests each one appeared on.
- 1Rbt (sp): efficiency below requirements48 tests
- 2Service brake performance: efficiency below requirements37 tests
- 3Wipers: does not clear the windscreen effectively34 tests
- 4Position lamp: not working32 tests
- 5Horn: not working31 tests
- 6Headlamp aim: projected beam image is obviously incorrect31 tests
- 7Outline marker lamp: not working30 tests
- 8Service brake performance: excessively binding26 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Hymer collects 2.87 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Wheel bearings: has excessive play141 tests
- 2Engine oil leaks: leaking excessively from engine118 tests
- 3Rigid brake pipes: excessively corroded106 tests
- 4Brake discs: in such a condition that it is seriously weakened101 tests
- 5Condition: has a tear, caused by separation or partial failure of its structure97 tests
- 6Tread depth: tread depth below requirements of 1.6mm59 tests
- 7Exhaust system: system insecure48 tests
- 8Service brake performance: excessively binding47 tests
Questions
What is the Fiat Hymer MOT pass rate?
79.4% of the 1,696 Fiat Hymer first-attempt MOTs in 2025 passed. The fail rate of 20.6% compares with 22.6% across all cars. A further 4.7% passed after a defect was fixed during the test visit.
What does a Fiat Hymer usually fail on?
The single most common failure is "Rbt (sp): efficiency below requirements", recorded on 48 failed tests, followed by "Service brake performance: efficiency below requirements" and "Wipers: does not clear the windscreen effectively". By section, lamps, reflectors and electrical equipment appears in 56.4% of failures, brakes appears in 44.1% of failures, body, chassis, structure appears in 22.6% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was 3.6%; at 14+ years it was 30.9%. The median Fiat Hymer tested in 2025 was 18 years old with 47,771 miles.
Is the Fiat Hymer getting less reliable?
The fail rate fell 1.6 points to 20.1% from 2022 to 2025, but the median one tested got 1 year younger over the same period as newer examples joined the fleet, so this is not a like-for-like comparison.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Hymer trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
Other Fiat models
Checking a particular Hymer?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.