2017 Mercedes-Benz Hymer — MOT failures & pass rate
Across 372 MOT tests, the 2017 Mercedes-Benz Hymer recorded a 95.4% pass rate. That is 8.0 percentage points better than all cars of a similar age, which fail at 12.6%. Failures cluster in lighting & signalling, brakes and visibility.
What the MOT record shows
Lighting & signalling dominates the failure mix at 4.6% of all tests — 3.2 points clear of brakes, so it is the first thing to check.
At component level the recurring items are headlamp aim, wipers and position lamp — headlamp aim alone was recorded 9 times.
Advisories point at the next bill rather than this one: brakes was flagged on 8.6% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 4.6% | 17 |
| 2 | Brakes | 1.3% | 5 |
| 3 | Visibility | 1.1% | 4 |
| 4 | Body, structure & corrosion | 0.8% | 3 |
| 5 | Emissions & environmental | 0.5% | 2 |
| 6 | Suspension | 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 | 9 |
| 2 | Wipers | 4 |
| 3 | Position lamp | 3 |
| 4 | Headlamp | 3 |
| 5 | Rbt (sp) | 2 |
| 6 | Other body component | 2 |
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 | 8.6% | 32 |
| 2 | Visibility | 3.5% | 13 |
| 3 | Lighting & signalling | 3.0% | 11 |
| 4 | Tyres | 1.6% | 6 |
| 5 | Steering | 1.6% | 6 |
| 6 | Suspension | 0.8% | 3 |
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 | 281 | 3.9% |
| 30-60k | 78 | 5.1% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 77 | 6.5% |
| 2022 | 76 | 1.3% |
| 2023 | 75 | 4.0% |
| 2024 | 73 | 5.5% |
| 2025 | 71 | 5.6% |
What to check before buying a 2017 Hymer
On a 2017 Hymer, lighting & signalling is what the MOT record says goes wrong most — it appeared in 4.6% of tests. Check these areas before you commit.
- Lighting & signalling (4.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (1.3% 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 (1.1% 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 Mercedes-Benz Hymers pass their MOT?
95.4% of the 372 2017 Mercedes-Benz Hymer MOT tests in this dataset passed — a 4.6% fail rate.
What is the most common MOT failure on a 2017 Mercedes-Benz Hymer?
Lighting & signalling, recorded in 4.6% of tests, followed by brakes (1.3%).
Does the 2017 Hymer get worse with mileage?
Its MOT fail rate rises from 3.9% in the 0-30k band to 5.1% in the 30-60k band.
Methodology & source. Based on 372 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.