400 first-attempt MOT failures were recorded on the 2022 Kia Rio in 2025. The item recorded most often on them was Tyres — Condition (front). Figures are among first-attempt failed MOT tests, not among all tests.
First-attempt pass
90.9%
of 4,410 first tests (2025)
First tests
4,410
test year 2025
Failed first attempts
400
failed first-attempt tests
Most common fail
21.5%
Tyres — Condition (front)
First-attempt and official-style rates among class 4 first tests of the year.
First-attempt pass
90.9%
of 4,410 first tests (2025)
Official-style pass
93.3%
incl. same-day PRS fixes
First tests
4,410
class 4 · first MOT of the year
Typical age 3.0 yrs · median mileage 20,097 mi
vs 2024: -3.8 pp first-attempt
Note:
Usage and mileage effects that often track road use rather than model design.
These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.
| Pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|
|
Brake pads (front)
Brakes > Mechanical brake components > Brake linings and pads > Brake pads
|
Front | 37 | ×2.4 | 9.2% | Wear |
Notes recorded at the test that appear more often than on similar cars.
Advisory notes recorded on failed first-attempt tests that appear more often than on similar cars.
| Advisory pattern | Location | Notes | vs similar cars | Share | Confidence |
|---|---|---|---|---|---|
|
Brake pads (front)
Brakes > Mechanical brake components > Brake linings and pads > Brake pads
|
Front | 51 | ×2.5 | 12.8% | Wear |
What this year's MOT record means for the decision in front of you.
On this year, prefer the hybrid. The petrol cars passed first time 2.0 pp less often, on 3,078 tests.
This year also sits 4.3 pp above the midpoint of the 2021 cars either side of it — a real break in the model's own run, not the usual year-on-year drift.
Newer cars always pass more often, so a plain "best year" list would just rank by age. These are the years that beat or miss the trend their own neighbouring years set — the only age-adjusted signal this data supports.
| Year | vs the years either side | First-attempt pass (rises with newer cars) | First tests |
|---|---|---|---|
| 2018 Rio | +2.2 pp better | 84.7% | 5,571 |
The items that failed 2022 Rios most often, as a share of the year's failed first attempts. This is what goes wrong, not what is unusual — the table further up the page covers that.
Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.
Short answers about how to read this model-year guide.
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.
UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.
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.
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.
Contains public sector information licensed under the Open Government Licence v3.0.
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