Pass rate
88.9%
Above average — 6.8 pts ahead of the 82.1% that cars this age and mileage manage.
Across 63 recorded tests.
Typical repair bill £32–£75
2015 Mercedes-Benz 250 MOT pass rate
- 2015
- typical 64,681 mi
Only 63 tests of this exact model and year are in the DVSA data, below the 100 we ask for before a page goes in the index. The figures are still shown, because they are the only ones there are.
Most common fault
Tyres
46.9% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Part only £55–£85 for Tread depth below 1.6 mm. What fitting it takes →
Which year to buy
- Best 2016 91.4% pass
- Avoid 2011 74.2% pass
Across the 8 years on record, a spread of 17.2 points. See every year →
- First-attempt pass
- 87.5%
- Typical mileage
- 65k mi
The 2015 Mercedes-Benz 250 MOT pass rate is 88.9% of its MOT tests — 6.8 points ahead of what its age and mileage predict. Tyres is the biggest single reason it fails, at 46.9% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Mercedes-Benz 250 does in your corner of the country.
Expert verdict
Tyres: 2.4× the national share
Tyres make up 46.9% of everything recorded on the 2015 Mercedes-Benz 250, against 19.8% nationally — 27.1 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- Beats its own age and mileage. Once you allow for how old and how far these cars have been driven, the expected pass rate is 82.1% and this one manages 88.9% — 6.8 points ahead of what its age and mileage predict.
- When it fails, it costs. Only 18% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
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 250? Get an email when these numbers change .
How does the 2015 Mercedes-Benz 250 compare?
Cars of this age and mileage average 82.1%, so this figure is 6.8 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 87.5%. The median 2015 Mercedes-Benz 250 in this dataset had covered 64,681 mi.
75% of the tests on this vehicle ran on Diesel, which passed 85.1% of the time.
The single most recorded failure item is "Ball joint dust cover severely deteriorated", noted on 3.17% of tests.
- 63 recorded tests behind this page.
- 88.9% overall pass rate, 87.5% on a first attempt.
- Across every year of the Mercedes-Benz 250, the average is 80.6% — best year 2016 (91.4%), worst 2011 (74.2%).
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
- 63
- Typical mileage (median)
- 64,681 mi
- Make and model
- Mercedes-Benz 250
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Ball Joint
Usually a DIY or independent-garage job.
Does mileage affect the 250 MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 77% so small gaps stay visible.
Fuel type and reliability
Pass rate by fuel type. Diesel is the most common here (75% of tests).
Regional pass rates for the 250
| Region | Tests | Pass rate |
|---|---|---|
| South East | 20 | 90.0% |
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 2015 250
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 2015 250
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 suspension joints 3.2% of tests
“ball joint dust cover severely deteriorated”
With the car parked on level ground, rock the top of each front wheel in and out while someone watches the suspension arm. Clunks, or rubber boots split and greasy, are what testers record here.
-
Check the tyre tread 3.2% of tests
“tread depth below requirements of 1.6mm”
Check all four tyres cold, including the inner shoulder where wear hides — 1.6mm across the central three-quarters is the legal limit, and most testers fail at 1.6mm without argument.
-
Check the lights 1.6% of tests
“headlamp not working on dipped beam”
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.
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 2015 250 through its MOT
Across the 9 items that are recorded most often on this model, the average repair comes to £32–£75 — and 18% of those repairs are parts that cost under £30.
- Average repair across the 9 common items
- £32–£75
- Cheapest common item: headlamp not working on dipped beam
- £5–£25
- Dearest common item: service brake performance excessively binding
- £60–£150
- Common items a careful owner can do at home
- 89%
- Repairs that still cost under £30
- 18%
Estimates from typical UK parts prices, weighted by how often each item appears in 63 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 250, side by side
8 model years on record, from 2009 to 2016. Across them the pass rate runs from 74.2% to 91.4% — a spread of 17.2 points. The bar under each year is the item that failed it most often.
- 2009 78.4% ball joint excessively worn
- 2010 77.1% registration plate lamp(s)…
- 2011 74.2% windscreen damaged but not…
- 2012 76.7% ball joint dust cover severely…
- 2013 81.9% ball joint excessively worn
- 2014 87.2% windscreen damaged but not…
- 2015 88.9%ball joint dust cover severely…
- 2016 91.4% ball joint dust cover severely…
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 2015 Mercedes-Benz 250 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 2015 cars with a similar record
Closest pass rates among 2015 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2015 Mercedes-Benz 250 9 failure items · 6 advisories · 7 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 49 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 |
|---|---|---|---|---|
| Tyres | 23 | 46.90% | 19.76% | +27.14 |
| Suspension | 8 | 16.30% | 20.98% | −4.68 |
| Non-component advisories | 6 | 12.20% | 4.18% | +8.02 |
| Brakes | 5 | 10.20% | 20.89% | −10.69 |
| Road Wheels | 4 | 8.20% | 0.75% | +7.45 |
| Lamps, reflectors and electrical equipment | 2 | 4.10% | 12.21% | −8.11 |
| Noise, emissions and leaks | 1 | 2.00% | 5.52% | −3.52 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Ball joint dust cover severely deteriorated Suspension | Minor | 3.2% | £18–45 |
| Tread depth below requirements of 1.6mm Tyres | Major | 3.2% | £45–95 |
| Ball joint dust cover no longer prevents the ingress of dirt Suspension | Major | 1.6% | £18–45 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Major | 1.6% | £45–95 |
| Has ply or cords exposed Tyres | Major | 1.6% | £45–95 |
| Headlamp not working on dipped beam Lamps, reflectors and electrical equipment | Major | 1.6% | £5–25 |
| Headlamp not working on main beam Lamps, reflectors and electrical equipment | Major | 1.6% | £5–25 |
| Hydraulic brake callipers inadequately mounted Brakes | Major | 1.6% | £45–110 |
| Service brake performance excessively binding Brakes | Major | 1.6% | £60–150 |
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 |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 11.1% | £45–95 |
| Badly distorted Road Wheels | Advisory | 6.3% | £20–55 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Advisory | 6.3% | £45–95 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 6.3% | £45–95 |
| Non-component advisories Child Seat fitted not allowing full inspection of adult belt Non-component advisories | Advisory | 6.3% | £20–80 |
| Wheel bearings has excessive play Suspension | Advisory | 4.8% | £20–55 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 10 | 90.0% | 25,647 mi |
| 30-60k | 15 | 93.3% | 41,347 mi |
| 60-90k | 17 | 88.2% | 67,301 mi |
| 90-120k | 14 | 85.7% | 98,499 mi |
| 120k+ | 7 | 85.7% | 168,769 mi |
Source: 63 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.
2015 250 MOT questions
What is the MOT pass rate for a 2015 Mercedes-Benz 250?
88.9% of the 63 2015 Mercedes-Benz 250 tests in this dataset passed, against a national average of 82.1% for cars first used in 2015. First-attempt pass rate: 87.5%.
What are the most common MOT failures on a 2015 Mercedes-Benz 250?
The three most recorded items are ball joint dust cover severely deteriorated (3.17%), tread depth below requirements of 1.6mm (3.17%), ball joint dust cover no longer prevents the ingress of dirt (1.59%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2015 Mercedes-Benz 250 MOT pass rate?
Yes. Cars under 30,000 miles passed 90.0% of the time, falling to 85.7% for those over 120,000 miles. The median 2015 Mercedes-Benz 250 in this dataset had covered 64,681 mi.
Which fuel type is most reliable for a 2015 Mercedes-Benz 250?
Diesel: 85.1% pass rate across 47 tests. Petrol: 100.0% pass rate across 16 tests. Shares are of the tests on this vehicle that recorded each fuel type.