At a glance
How 3,182 first tests went in 2025.
- Passed first time
- 74 in every 100
- Did not pass first time
- 26 in every 100840 failed first-attempt tests
- The typical car
- 5 yearsabout 65,722 miles
- First tests counted
- 3,182
What failed most often
- Tyre tread depth (front)11 in every 100 failed tests
- Diesel engine warning light10 in every 100 failed tests
- Brake light9 in every 100 failed tests
How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.
These are patterns across 2020 Ford Transit Courier vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.
Noise, emissions and leaks
Three faults. The strongest is the diesel emissions test (compression-ignition rules for vehicles from 01/01/2014): 7.0 times as often as on similar cars.
Figures below are measured across the 837 of 840 failed first attempts (99.6%) that recorded an odometer reading in 2025. Mileage is needed to compare like with like.
We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.
Diesel emissions test (compression-ignition rules for vehicles from 01/01/2014)
Diesel engine warning light
What it means
An engine malfunction indicator lamp that is illuminated to show a malfunction is graded Major on a diesel, but only on the diesels the test covers, which depends on the vehicle type and when it was first used. DVSA lists it under exhaust emissions for compression ignition engines, and the detail line for the row also names an inoperative lamp.
Petrol engine warning light
What it means
The malfunction indicator lamp (MIL) on a petrol engine is a Major failure when it is illuminated indicating a malfunction. The detail line DVSA gives for the same row also names an inoperative lamp. The test covers only certain petrol vehicles, depending on their age, size and fuel type.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Lamps and electrical
One fault: brake light (rear), 5.8 times as often as on similar cars.
Brake light (rear)
What it means
All stop lamps missing or not working is graded Dangerous, and so is a stop lamp that stays on when the brakes are released. A stop lamp that is missing or not working is Major. On some vehicles with LED rear lamps, part of the stop lamp can go out when the rear fog lamp is lit, which is not regarded as a defect.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Steering
One fault: track rod end (front), 2.7 times as often as on similar cars.
Track rod end (front)
What it means
A steering ball joint with excessive wear or free play is Major, and one worn to the extent there is a serious risk of detachment is graded Dangerous. A dust cover that is damaged but still keeps dirt out is Minor, and one missing or no longer keeping dirt out is Major. Testers must tell wear from a joint's built-in clearance or spring loading.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Suspension
One fault: suspension arm ball joint (front), 2.3 times as often as on similar cars.
Suspension arm ball joint (front)
What it means
A suspension arm ball joint is failed under the general suspension pin, bush or joint wording. Excessively worn is Major, and likely to become detached is graded Dangerous.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Advisories
Other things testers noted as worn or close to failing, more often than on similar cars.
An advisory is a note from the tester about something that has not failed yet. It is an early warning, not a fail.
Number plates (rear)
Wheel condition (front)
Data: UK MOT open data, 2025. Counts cover advisories recorded on failed first tests only, compared with cars of the same age and mileage.
MOT pass rates
How first tests ended, and how the pass rates are counted.
- Passed first time
- 74in every 100
- Passed on the first test.
- Fixed at the station
- 7in every 100
- Failed, then fixed at the test station the same day.
- Failed
- 19in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 73.6% of 3,182 first tests (2025): only cars that passed first time count. Official-style pass 81.5%: cars fixed at the test station also count as a pass. The 7 fixed and the 19 not fixed make the 26 in every 100 that did not pass first time.
Petrol and diesel
Figures are in every 100 first tests. Cars with more miles usually fail more often, so the same-mileage figure gives every fuel the mileage mix of all the cars in this year.
Same model, other years
Passed first time in every 100, all tested in 2025.
Newer cars are younger, so look for a jump rather than the climb.
| Year | Passed first time | First tests |
|---|---|---|
| 2014 | 60 in every 100 | 969 |
| 2015 | 59 in every 100 | 3,236 |
| 2016 | 64 in every 100 | 2,563 |
| 2017 | 66 in every 100 | 3,673 |
| 2018 | 70 in every 100 | 4,108 |
| 2019 | 71 in every 100 | 4,267 |
| 2020 This car | 74 in every 100 | 3,182 |
| 2021 | 78 in every 100 | 3,419 |
| 2022 | 80 in every 100 | 4,351 |
If you are buying one
What this year's MOT record means for the decision in front of you.
Mileage matters most on a 2020 Transit Courier.
Of 2020 Transit Courier vehicles with under 40,000 miles, 84 in every 100 passed their 2025 MOT first time. With 94,000 miles or more, 67 in every 100 did.
Petrol or diesel?
| Typical mileage | Passed first time, as tested | Passed first time, same mileage | |
|---|---|---|---|
| Diesel | 66,521 miles | 74 | 74 |
| Petrol | 62,008 miles | 72 | 71 |
Figures are in every 100 first tests. At the same mileage there is no clear difference between the two.
What to check at your mileage
How often each fault turned up on a failed first test, by the car's mileage. Read it as: what is likely to need looking at on a car like the one in front of you.
| Under 40,000 | 58,000–74,000 | 94,000 and over | |
|---|---|---|---|
| Tyre tread depth (front) | 1.7 | 2.4 | 3.1 |
| Diesel engine warning light | 1.6 | 3.0 | 3.6 |
| Brake light | 1.9 | 2.6 | 3.3 |
| Headlight aim | 1.1 | 1.8 | 3.8 |
| Tyre condition (front) | 0.6 | 2.4 | 2.4 |
Faults per 100 first tests, by the car's mileage at the test.
When a car fails
of failed cars had one item to fix.
of failed cars had three or more items to fix.
of all first tests had a defect the tester marked dangerous (unsafe to drive away).
Every figure here is a first-attempt MOT rate from DVSA open data for this model line, for cars of this model year tested in 2025. Each mileage band holds a fifth of the tests. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.
FAQs
Short answers about how to read this model-year guide.
About this data
How this page is built and what it can (and can't) say.
These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.
What we include
UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.
Same-day repairs
PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.
How we compare
We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.
What this does not cover
- MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
- Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
- Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
- If the data for a car is too thin to say anything useful, we say so rather than guess.
Contains public sector information licensed under the Open Government Licence v3.0.
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