2017 Hymer B — MOT failures & pass rate
Across 346 MOT tests analysed for the 2017 Hymer B, the most common recorded failure areas were lighting & signalling, brakes and visibility. Its pass rate of 89.9% was above the average for cars of a similar age (87.6%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 6.1% | 21 |
| 2 | Brakes | 4.0% | 14 |
| 3 | Visibility | 2.0% | 7 |
| 4 | Seat belts & restraints | 2.0% | 7 |
| 5 | Body, structure & corrosion | 1.5% | 5 |
| 6 | Other defects | 0.3% | 1 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 14 |
| 2 | Position lamp | 7 |
| 3 | Rbt (sp) | 7 |
| 4 | SRS malfunction indicator lamp | 6 |
| 5 | Wipers | 5 |
| 6 | Individual direction indicators | 5 |
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 | 7.2% | 25 |
| 2 | Lighting & signalling | 2.9% | 10 |
| 3 | Visibility | 2.6% | 9 |
| 4 | Brakes | 1.7% | 6 |
| 5 | Steering | 1.5% | 5 |
| 6 | Emissions & environmental | 1.2% | 4 |
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 | 285 | 10.2% |
| 30-60k | 59 | 10.2% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 72 | 11.1% |
| 2022 | 76 | 13.2% |
| 2023 | 66 | 6.1% |
| 2024 | 65 | 6.2% |
| 2025 | 67 | 13.4% |
What to check before buying a 2017 B
Before buying a 2017 Hymer B, focus on the areas it most often fails on. Lighting & signalling accounted for 6.1% of tests for this year.
- Lighting & signalling (6.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (4.0% 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.
- Visibility (2.0% 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.
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 2017 Hymer Bs pass their MOT?
89.9% of the 346 2017 Hymer B MOT tests in this dataset passed — a 10.1% fail rate.
What is the most common MOT failure on a 2017 Hymer B?
Lighting & signalling, recorded in 6.1% of tests, followed by brakes (4.0%).
Does the 2017 B get worse with mileage?
Its MOT fail rate rises from 10.2% in the 0-30k band to 10.2% in the 30-60k band.
Methodology & source. Based on 346 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.