2020 Hyundai Ioniq MOT pass rate: 91.6% (21,653 tests)
Is the 2020 Ioniq getting worse?
Pass rate of 2020-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 91.3% +0.4 vs same-age |
|
| 2024 | 92.4% +2.4 vs same-age |
|
| 2025 | 91.3% +2.3 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2020 Ioniq
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 1,178 | 39.5% |
| 2 | Visibility | 558 | 18.7% |
| 3 | Lamps, reflectors and electrical equipment | 497 | 16.6% |
| 4 | Brakes | 487 | 16.3% |
| 5 | Body, chassis, structure | 103 | 3.4% |
| 6 | Noise, emissions and leaks | 42 | 1.4% |
All Ioniq years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2017 | 16,998 | 88.3% | +4.3 pts | 72,480 |
| 2018 | 25,710 | 89.4% | +3.0 pts | 66,129 |
| 2019 | 26,882 | 90.5% | +2.1 pts | 50,790 |
| 2020 (this page) | 21,653 | 91.6% | +1.7 pts | 37,372 |
| 2021 | 20,757 | 91.1% | +0.7 pts | 37,817 |
| 2022 | 5,153 | 90.9% | -0.3 pts | 26,071 |
Weighing up which year to buy? See the full ranking: Hyundai Ioniq years to avoid.
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
- Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
- XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
- Autel UK testersAutel professional-grade diagnostic testers
FAQs
Is a 2020 Hyundai Ioniq reliable?
2020-registered examples passed 91.6% of their MOT tests (21,653 tests, 2023–2025), +1.7 points versus all UK cars registered in the same year. At roughly 6 years old with a median 37,372 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2020 Ioniq?
The median tested example shows 37,372 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.