36,332 tests in 2025
Hyundai Ioniq reliability and MOT pass rate
89.3% passed first time. The 10.7% fail rate is 11.9 points better than the all-car average, on a median example 6 years old with 65,443 miles.
Petrol, diesel and hybrid versions. The electric version has its own page: Hyundai Ioniq Electric.
Pass rate
89.3%
22.6% of all cars failed; 10.7% of these did.
Fixed on the day
3.8%
Passed after a defect was put right during the visit.
Median at test
65,443 mi
6 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 14,362 | 9.4% |
| 6-9 years | 21,932 | 11.5% |
| 10-13 years | 0 | — |
| 14+ years | 0 | — |
What the Ioniq fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Tyres1,494 dangerous39.1%
- Brakes424 dangerous29.2%
- Lamps, reflectors and electrical equipment2 dangerous24.4%
- Visibility1 dangerous14.3%
- Suspension11 dangerous9%
- Noise, emissions and leaks1 dangerous4%
- Body, chassis, structure17 dangerous3.9%
- Steering7 dangerous2.7%
Is the Ioniq getting worse?
The fail rate rose 2.3 points to 10.2% from 2022 to 2025, against a rising rate across all cars.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 25,441 | 4 | 7.9% | 22.5% | |
| 2023 | 34,516 | — | 9.4% | 22.8% | |
| 2024 | 37,477 | — | 9.7% | 23.2% | |
| 2025 | 44,299 | — | 10.2% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Ioniq at its test that year, and it is the number to watch: across the whole fleet each extra year of age adds roughly 1.9 points to the fail rate, so a model whose age and fail rate rise together is simply getting older.
The exact defects that fail it
Every failure item DVSA recorded against a Ioniq in 2025, counted by how many tests each one appeared on.
- 1Tread depth: tread depth below requirements of 1.6mm583 tests
- 2Condition: has a cut in excess of the requirements deep enough to reach the ply or cords410 tests
- 3Rbt (sp): efficiency below requirements367 tests
- 4Wipers: does not clear the windscreen effectively333 tests
- 5Condition: has ply or cords exposed287 tests
- 6Service brake performance: efficiency below requirements277 tests
- 7Headlamp levelling device: inoperative213 tests
- 8Brake pads: less than 1.5 mm thick206 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Ioniq collects 1.93 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Tread depth: tread depth below requirements of 1.6mm4,398 tests
- 2Condition: has a tear, caused by separation or partial failure of its structure2,297 tests
- 3Brake discs: in such a condition that it is seriously weakened2,207 tests
- 4Brake pads: less than 1.5 mm thick915 tests
- 5Tread depth: tread pattern not visible over the whole tread area when minimum depth required is 1.0mm744 tests
- 6Non-component advisories: Nail in tyre568 tests
- 7Service brake performance: excessively binding559 tests
- 8Non-component advisories: Child Seat fitted not allowing full inspection of adult belt461 tests
Questions
What is the Hyundai Ioniq MOT pass rate?
89.3% of the 36,332 Hyundai Ioniq first-attempt MOTs in 2025 passed. The fail rate of 10.7% compares with 22.6% across all cars. A further 3.8% passed after a defect was fixed during the test visit.
What does a Hyundai Ioniq usually fail on?
The single most common failure is "Tread depth: tread depth below requirements of 1.6mm", recorded on 583 failed tests, followed by "Condition: has a cut in excess of the requirements deep enough to reach the ply or cords" and "Rbt (sp): efficiency below requirements". By section, tyres appears in 39.1% of failures, brakes appears in 29.2% of failures, lamps, reflectors and electrical equipment appears in 24.4% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was 9.4%; at 6-9 years it was 11.5%. The median Hyundai Ioniq tested in 2025 was 6 years old with 65,443 miles.
Is the Hyundai Ioniq getting less reliable?
The fail rate rose 2.3 points to 10.2% from 2022 to 2025, against a rising rate across all cars.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Ioniq trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
DVSA has published 3 safety recalls naming the Hyundai Ioniq: Hyundai Ioniq recalls.
Other Hyundai models
Checking a particular Ioniq?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.