At a glance
How 6,192 first tests went in 2025.
- Passed first time
- 87 in every 100
- Did not pass first time
- 13 in every 100821 failed first-attempt tests
- The typical car
- 5 yearsabout 21,438 miles
- First tests counted
- 6,192
What failed most often
- Tyre condition (front)19 in every 100 failed tests
- Daytime running lights (front)13 in every 100 failed tests
- Windscreen wipers (front)7 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 Hyundai i10 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.
Lamps and electrical
One fault: daytime running lights (front), 56 times as often as on similar cars.
Figures below are measured across the 819 of 821 failed first attempts (99.8%) 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.
Daytime running lights (front)
What it means
Daytime running lamps are inspected only when fitted as original equipment to cars and similar passenger vehicles first used on or after a set date. A lamp that is missing or not working, or that shows red light to the front, is Major. These lamps need not operate when the engine is not running, the parking brake is on, or park is selected on an automatic.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Steering
One fault: steering rack, 38 times as often as on similar cars.
Steering rack
What it means
Steering gear casing retaining devices dangerously loose, or visible relative movement to the chassis or bodywork, is graded Dangerous. A casing not properly attached, or fractured, is Major, but a fracture that affects the stability or attachment of the casing is Dangerous. A gaiter damaged but still keeping dirt out is Minor, and Major once missing or no longer doing so.
Data: UK MOT open data, 2025. 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
- 87in every 100
- Passed on the first test.
- Fixed at the station
- 3in every 100
- Failed, then fixed at the test station the same day.
- Failed
- 10in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 86.7% of 6,192 first tests (2025): only cars that passed first time count. Official-style pass 90.2%: cars fixed at the test station also count as a pass. The 3 fixed and the 10 not fixed make the 13 in every 100 that did not pass first time.
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. A year earlier (2024), when these cars were a year younger, 88 in every 100 passed first time.
| Year | Passed first time | First tests |
|---|---|---|
| 2008 | 55 in every 100 | 4,181 |
| 2009 | 58 in every 100 | 17,479 |
| 2010 | 62 in every 100 | 17,362 |
| 2011 | 63 in every 100 | 16,019 |
| 2012 | 62 in every 100 | 19,089 |
| 2013 | 63 in every 100 | 19,598 |
| 2014 | 71 in every 100 | 22,080 |
| 2015 | 76 in every 100 | 21,555 |
| 2016 | 80 in every 100 | 21,548 |
| 2017 | 81 in every 100 | 23,091 |
| 2018 | 80 in every 100 | 20,594 |
| 2019 | 82 in every 100 | 17,682 |
| 2020 This car | 87 in every 100 | 6,192 |
| 2021 | 85 in every 100 | 7,840 |
| 2022 | 84 in every 100 | 8,288 |
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 Hyundai i10.
Of 2020 Hyundai i10 vehicles with under 12,000 miles, 92 in every 100 passed their 2025 MOT first time. With 34,000 miles or more, 79 in every 100 did.
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 12,000 | 18,000–25,000 | 34,000 and over | |
|---|---|---|---|
| Tyre condition (front) | 0.8 | 3.2 | 3.4 |
| Daytime running lights (front) | 0.2 | 1.5 | 3.6 |
| Windscreen wipers (front) | 1.4 | 0.5 | 0.6 |
| Brake pads (front) | 0.1 | 0.4 | 2.5 |
| Tyre tread depth (front) | 0.1 | 0.5 | 1.9 |
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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