Hyundai Ioniq reliability, MPG and running costs
Figures updated
The Hyundai Ioniq is a family hatchback. In 2024 MOT tests it scored 136 for reliability (100 is average), ranking 93 of 442, and 13.2% failed first time against a UK average of 28.5%. Its most common MOT failure is wipers (2.1% of tests).
Ranked 93 of 442 cars in the 2024 MOT Reliability League, and 2 of 30 family hatchbacks
In 2024, 41,747 Hyundai Ioniqs aged 3 to 20 had an MOT and 13.2% failed first time (UK average 28.5%). Taking age and mileage into account, the Hyundai Ioniq is 26% less likely to fail than the average car of the same age and mileage. At the first MOT, at three years old, 11.9% failed (UK 12.7%).
First-time fail rate
13.2%
UK 28.5%
Fail rate at 3 years
11.9%
UK 12.7%
Average miles a year
12,900
Typical age at test: 5 years
Hyundai Ioniq MOT failure rate by age
Most common Hyundai Ioniq MOT faults
- Wipers: does not clear the windscreen effectively2.1% of tests
- Tread depth: tread depth below requirements of 1.6mm1.7% of tests
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.2% of tests
- Rbt (sp): efficiency below requirements0.8% of tests
- Condition: has ply or cords exposed0.7% of tests
- Headlamp aim: too high0.7% of tests
What the Hyundai Ioniq fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Tyres | 4.6% | ▼ 21% less often |
| Lights and electrics | 4.0% | ▼ 22% less often |
| Visibility | 3.0% | ▼ 15% less often |
| Brakes | 2.7% | ▼ 22% less often |
| Suspension | 0.5% | ▼ 80% less often |
| Exhaust and emissions | 0.4% | ▼ 71% less often |
| Body and structure | 0.3% | ▼ 61% less often |
| Steering | 0.2% | ▼ 67% less often |
| Seat belts and airbags | 0.1% | ▼ 66% less often |
| Wheels | 0.1% | ▼ 56% less often |
What MPG does the Hyundai Ioniq do?
Official economy for the Hyundai Ioniq ranges from 61.4 to 83.1mpg across the 87 versions listed by the Vehicle Certification Agency (2017–2025). Electric versions average 4 miles per kWh, with an official range of 173 to 385 miles.
Work out a journey's fuel costHow much is road tax on a Hyundai Ioniq?
Any Hyundai Ioniq first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates).
Work out tax for a specific carHyundai Ioniq specs and running costs
Official figures for 87 versions sold in the UK between 2017 and 2025.
Fuel types
Electric, Hybrid, Plug-in hybrid
Official economy
61.4–83.1 mpg
Electric range
173–385 miles
Efficiency
3.0–5.4 mi/kWh
CO2
26–105 g/km
Power
105–650 PS
| Version | Fuel | Economy | CO2 | Car tax | Company car tax |
|---|---|---|---|---|---|
| IONIQ 5 IONIQ 5 ADV 63KWH RWD MY25170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 58 KWH RWD MY22.5170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 58 KWH RWD MY22.75170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 58 KWH RWD MY23170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 58 KWH RWD MY24170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 63KWH RWD MY25170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 ULT 58 KWH RWD MY22.75170 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 9 IONIQ 9 ULTIMATE 218PS RWD MY26218 PS · N/A · listed 2025 | Electric | 3 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 NAMSAN 77 KWH RWD MY24228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 NLINE 84KWH RWD MY25228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 NLINE S 84KWH RWD MY25228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 NAMSAN 77 KWH RWD MY23228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 77 KWH RWD MY22.75228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 77 KWH RWD MY23228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
| IONIQ 5 IONIQ 5 PRM 84KWH RWD MY25228 PS · N/A · listed 2025 | Electric | 4 mi/kWh | 0g | £200 | 4% |
Economy and CO2 are official WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement. Company car tax is the 2026/27 benefit-in-kind rate. Showing the 15 most recent of 87 versions.
What a Hyundai Ioniq costs to fuel
- Electric, typical official 4 miles per kWh…
Official figures are usually 10–15% better than real-world driving.
Work out your charging costsBuying a used Hyundai Ioniq?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the Hyundai Ioniq with other family hatchbacks
Reliability, economy, car tax and running costs side by side.
Other Hyundai models
Frequently asked questions
›Is the Hyundai Ioniq reliable?
Its MOT record is better than average: the Hyundai Ioniq is 26% less likely to fail than the average car of the same age and mileage, with a reliability score of 136 in our 2024 league (100 is average).
›What are common problems with the Hyundai Ioniq?
The most common MOT fault is “Wipers: does not clear the windscreen effectively”, found in 2.1% of tests.
›What MPG does the Hyundai Ioniq do?
Official economy for the Hyundai Ioniq ranges from 61.4 to 83.1mpg across the 87 versions listed by the Vehicle Certification Agency (2017–2025). Electric versions average 4 miles per kWh, with an official range of 173 to 385 miles.
›How much is road tax on a Hyundai Ioniq?
Any Hyundai Ioniq first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates).
›How many Hyundai Ioniqs fail their MOT?
13.2% of Hyundai Ioniqs aged 3 to 20 failed their MOT first time in 2024, and 11.9% failed at their first MOT.
Sources: DVSA anonymised MOT tests 2024, all versions of the Hyundai Ioniq combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.