Pass rate
92.8%
Above average — 4.9 pts ahead of the 87.9% that cars this age and mileage manage.
Across 320 recorded tests.
Typical repair bill £19–£50
2018 Mercedes-Benz motorhome MOT pass rate
- 2018
- Motorhome
- 5 trims combined
- typical 18,755 mi
This is a generic motorhome filing record rather than a named converter, so there is no manufacturer to compare against. The test figures are real and included in our totals.
Most common fault
Brakes
36.6% of faults · 20.9% nationally
mostly worn pads and discs, corroded pipes and a handbrake that will not hold.
Part only £60–£90 for Brake discs seriously weakened. What fitting it takes →
Which year to buy
- Best 2017 95.0% pass
- Avoid 2001 75.4% pass
Across the 21 years on record, a spread of 19.6 points. See every year →
- First-attempt pass
- 92.3%
- Typical mileage
- 19k mi
The 2018 Mercedes-Benz motorhome MOT pass rate is 92.8% of its MOT tests — 4.9 points ahead of what its age and mileage predict. Brakes is the biggest single reason it fails, at 36.6% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Mercedes-Benz motorhome does in your corner of the country.
Expert verdict
Brakes: 1.8× the national share
Brakes make up 36.6% of everything recorded on the 2018 Mercedes-Benz Motorhome, against 20.9% nationally — 15.7 points above. Have the discs and pads measured rather than glanced at, and ask whether the handbrake holds on a slope.
- Beats its own age and mileage. Once you allow for how old and how far these motorhomes have been driven, the expected pass rate is 87.9% and this one manages 92.8% — 4.9 points ahead of what its age and mileage predict.
- Failures here tend to be cheap ones. 73% of the repairs this model fails on cost under £30 in parts. The pass rate matters less than what a bad afternoon at the test centre actually costs you.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a Mercedes-Benz Motorhome? Get an email when these numbers change .
Every Mercedes-Benz motorhome first registered in 2018 is combined here — 5 trim and body variants in total — so the sample is as large as the DVSA data allows.
How does the 2018 Mercedes-Benz motorhome compare?
Cars of this age and mileage average 87.9%, so this figure is 4.9 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 92.3%. The median 2018 Mercedes-Benz motorhome in this dataset had covered 18,755 mi.
Pass rates also shift with the test month: tests recorded October–March passed 90.0% of the time, April–September 94.5%.
The single most recorded failure item is "Wipers does not clear the windscreen effectively", noted on 2.19% of tests.
- 320 recorded tests behind this page.
- 92.8% overall pass rate, 92.3% on a first attempt.
- Across every year of the Mercedes-Benz motorhome, the average is 85.6% — best year 2017 (95.0%), worst 2001 (75.4%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 320
- Typical mileage (median)
- 18,755 mi
- Make and model
- Mercedes-Benz Motorhome
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Wiper Blade
Usually a DIY or independent-garage job.
Does mileage affect the Motorhome MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 67% so small gaps stay visible.
Regional pass rates for the Motorhome
| Region | Tests | Pass rate |
|---|---|---|
| South East | 54 | 92.6% |
| South West | 45 | 97.8% |
| West Midlands | 41 | 87.8% |
| North West | 38 | 92.1% |
| Scotland | 33 | 93.9% |
| East of England | 31 | 90.3% |
| Yorkshire | 29 | 96.6% |
| East Midlands | 20 | 90.0% |
| North East | 17 | 88.2% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2018 Motorhome
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2018 Motorhome
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the wipers and washers 2.2% of tests
“wipers does not clear the windscreen effectively”
Run the wipers with the screen wet: they should clear it in one sweep without smearing or juddering. Top the washer bottle up and check both jets hit the screen.
-
Check the lights 1.3% of tests
“outline marker lamp not working”
Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.
-
Check the windscreen 0.9% of tests
“windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2018 Motorhome through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £19–£50 — and 73% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £19–£50
- Cheapest common item: stop lamp with a multiple light source up to…
- £3–£12
- Dearest common item: windscreen damaged
- £80–£200
- Common items a careful owner can do at home
- 80%
- Repairs that still cost under £30
- 73%
Estimates from typical UK parts prices, weighted by how often each item appears in 320 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the Motorhome, side by side
21 model years on record, from 2000 to 2022. Across them the pass rate runs from 75.4% to 95.0% — a spread of 19.6 points. The bar under each year is the item that failed it most often.
- 2000 77.7% registration plate lamp(s)…
- 2001 75.4% registration plate lamp(s)…
- 2002 78.6% registration plate lamp(s)…
- 2003 80.8% registration plate lamp(s)…
- 2004 81.4% windscreen damaged but not…
- 2005 81.2% rbt (sp) efficiency below…
- 2006 84.5% windscreen damaged but not…
- 2007 87.9% registration plate lamp(s)…
- 2008 84.8% registration plate lamp(s)…
- 2009 87.2% drag link end ball joint dust…
- 2010 93.6% ball joint dust cover severely…
- 2011 84.1% service brake performance…
- 2014 82.8% windscreen damaged but not…
- 2015 86.8% track rod end ball joint has…
- 2016 91.4% stop lamp with a multiple light…
- 2017 95.0% registration plate lamp(s)…
- 2018 92.8%wipers does not clear the…
- 2019 92.0% wipers does not clear the…
- 2020 94.3% headlamp aim too high
- 2021 94.3% wipers does not clear the…
- 2022 94.0% windscreen damaged but not…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2018 Mercedes-Benz Motorhome with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2018 motorhomes with a similar record
- Ford Motorhome 93.7%
- Mobilvetta Motorhome 94.1%
- Fiat Motorhome 94.2%
- Peugeot Motorhome 94.5%
- Rapido Motorhome 95.1%
- Suzuki Motorhome 90.0%
Closest pass rates among 2018 motorhomes with at least 150 tests, so a small sample cannot flatter itself into the list. Full rankings: best motorhomes and worst motorhomes for MOT pass rates.
The full DVSA record for the 2018 Mercedes-Benz Motorhome 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 130 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Brakes | 48 | 36.60% | 20.89% | +15.71 |
| Lamps, reflectors and electrical equipment | 35 | 26.70% | 12.21% | +14.49 |
| Visibility | 18 | 13.70% | 4.97% | +8.73 |
| Tyres | 7 | 5.30% | 19.76% | −14.46 |
| Suspension | 6 | 4.60% | 20.98% | −16.38 |
| Steering | 5 | 3.80% | 2.57% | +1.23 |
| Body, chassis, structure | 4 | 3.10% | 5.57% | −2.47 |
| Noise, emissions and leaks | 3 | 2.30% | 5.52% | −3.22 |
| Non-component advisories | 2 | 1.50% | 4.18% | −2.68 |
| Seat belts and supplementary restraint systems | 2 | 1.50% | 0.82% | +0.68 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Wipers does not clear the windscreen effectively Visibility | Major | 2.2% | £8–22 |
| Outline marker lamp not working Lamps, reflectors and electrical equipment | Major | 1.3% | £3–15 |
| Stop lamp with a multiple light source up to 1/2 not functioning Lamps, reflectors and electrical equipment | Minor | 1.3% | £3–12 |
| Outline marker lamp not working Lamps, reflectors and electrical equipment | Rectified | 0.94% | £3–15 |
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 0.94% | £80–200 |
| Wipers blade defective Visibility | Minor | 0.94% | £8–22 |
| Wipers does not clear the windscreen effectively Visibility | Rectified | 0.94% | £8–22 |
| Brake discs in such a condition that it is seriously weakened Brakes | Major | 0.63% | £45–110 |
| Brake discs significantly and obviously worn Brakes | Major | 0.63% | £45–110 |
| Headlamp aim too high Lamps, reflectors and electrical equipment | Rectified | 0.63% | £30–80 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 6.9% | £45–110 |
| Stop lamp with a multiple light source more than 1/2 not functioning Lamps, reflectors and electrical equipment | Advisory | 1.9% | £3–12 |
| Brake discs significantly and obviously worn Brakes | Advisory | 0.94% | £45–110 |
| Rigid brake pipes excessively corroded Brakes | Advisory | 0.94% | £80–180 |
| Track rod end ball joint has excessive play Steering | Advisory | 0.94% | £18–45 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 0.63% | £18–45 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 245 | 93.9% | 16,349 mi |
| 30-60k | 68 | 89.7% | 38,277 mi |
| 60-90k | 4 | 75.0% | 67,932 mi |
| 120k+ | 3 | 100.0% | 154,086 mi |
Source: 320 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2018 Motorhome MOT questions
What is the MOT pass rate for a 2018 Mercedes-Benz motorhome?
92.8% of the 320 2018 Mercedes-Benz motorhome tests in this dataset passed, against a national average of 87.9% for cars first used in 2018. First-attempt pass rate: 92.3%.
What are the most common MOT failures on a 2018 Mercedes-Benz motorhome?
The three most recorded items are wipers does not clear the windscreen effectively (2.19%), outline marker lamp not working (1.25%), stop lamp with a multiple light source up to 1/2 not functioning (1.25%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2018 Mercedes-Benz motorhome MOT pass rate?
Yes. Cars under 30,000 miles passed 93.9% of the time, falling to 100.0% for those over 120,000 miles. The median 2018 Mercedes-Benz motorhome in this dataset had covered 18,755 mi.
Does the season affect the 2018 Mercedes-Benz motorhome MOT pass rate?
Tests recorded in the winter months (October–March) passed 90.0% of the time; summer months (April–September) passed 94.5%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.