Hyundai IONIQ Mk1 (AE) (2016-2022) reliability
Hyundai IONIQ Mk1 (AE) built around 2018: about average at the MOT
Hyundai IONIQ Mk1 (AE) models built around 2018 fail their MOT about as often as similar cars the same age.
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Key figure
14% of MOT tests on Hyundai IONIQ Mk1 (AE) models built around 2018 ended in a fail (retests included), against 16% for similar cars the same age.
Most common issue
The most common MOT issue on Hyundai IONIQ Mk1 (AE) models built around 2018 involves the tyres.
Based on 52,978 tests of IONIQ models registered 2016-2022.
About 1 in 6 hybrid electric IONIQ cars registered in 2022 (18.3%) failed their first MOT.
Based on 2,338 first MOTs (DVSA MOT results, 2025).
About 1 in 50 IONIQ Mk1 (AE) MOTs (2.1%) failed and still hadn't passed 3 days later. That's for cars built around 2018 (7 years old), all fuels combined.
Based on 8,438 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.
About 1 in 25 IONIQ Mk1 (AE) MOTs (4.2%) found at least one dangerous defect. These are cars built around 2018 (7 years old).
Based on 8,438 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.
Mk1 (AE) fail rate by age
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 9 years old.
How the IONIQ Mk1 (AE) compares
At each age below, see how the IONIQ Mk1 (AE) holds up against other cars the same age. The averages combine all fuel types.
Based on 98,626 tests across 10 Hyundai models, built around 2018 (7 years old).
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.
What to check before viewing
The model's most common MOT issues, turned into things you can ask about or look for.
Brake discs
High priorityAsk for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Brake pads
High priorityAsk when the pads were last replaced and check the warning-light history.
Tyres
Worth checkingCheck tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Suspension bushes and joints
Worth checkingListen for knocks over speed bumps and ask about recent control-arm or anti-roll-bar work.
Vehicle-specific check
Worth checkingCheck the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Other hatchbacks to compare
Other hatchbacks, with each one's figures taken at the same age as the IONIQ Mk1 (AE).
- 1
Mini
Same body type, tested at the same age
- Fail rate
- 12.3%
- Still registered at 10 years
- 95.6%
No clear edge over the Hyundai IONIQ Mk1 (AE) on these figures.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
50,561 MOT tests on cars built around 2018
- 2
Suzuki SX4
Same body type, tested at the same age
- Fail rate
- 13.5%
No clear edge over the Hyundai IONIQ Mk1 (AE) on these figures.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
3,314 MOT tests on cars built around 2018
- 3
MG 3
Same body type, tested at the same age
- Fail rate
- 23.3%
- Still registered at 10 years
- 88.1%
No clear edge over the Hyundai IONIQ Mk1 (AE) on these figures.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
3,383 MOT tests on cars built around 2018
- 4
Fiat 500
Same body type, tested at the same age
- Fail rate
- 16.9%
No clear edge over the Hyundai IONIQ Mk1 (AE) on these figures.
2 critical recall campaigns matching this model/build period.
1,235 MOT tests on cars built around 2018
- Fail rate
- = the share of MOT tests that ended in a fail. Retests count as tests.
- Still registered at 10 years
- = the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.
Recall context
7 recalls in all6 of the 7 IONIQ Mk1 (AE) recalls cover cars built in these years.
- 6 recalls
Top concerns
- Wheel nuts not tightened to correct specification
- Hybrid warning lamp eliminated on instrument cluster may indicate thermal damage to power relay assembly and power cable
- Coolant may leak into electric power control unit
For the exact car, check GOV.UK's recall checker with the number plate.
What has gone wrong on IONIQ Mk1 (AE) cars built around 2018
The share of hybrid electric cars that have ever failed an MOT on each part of the car. Based on 552 cars.
How IONIQ Mk1 (AE) cars have aged
How IONIQ Mk1 (AE) cars have aged
How fail rates have changed as these cars got older. Each line follows cars first registered in about the same year across several years of MOT data. Not a prediction for any one car.
Some lines cover only a year or two, so read this as a rough guide.
How each part holds up as Mk1 (AE) cars age
How each part holds up as Mk1 (AE) cars age
The share of hybrid electric cars built 2017-2020 that have ever failed an MOT on each part of the car. Rates usually rise with age, but can dip slightly as cars leave the road.
| Part of the car | 5 years | 6 years | 7 years | 8 years |
|---|---|---|---|---|
| Suspension | 1% | 2% | 3% | 6% |
| Brakes | 4% | 9% | 16% | 17% |
| Emissions | 1% | 1% | 2% | 3% |
| Tyres | 10% | 16% | 20% | 22% |
| Lighting | 13% | 11% | 12% | 8% |
| Drivetrain | No figure | No figure | 1% | 1% |
| Steering | No figure | 1% | 1% | No figure |
| Corrosion | 0% | 0% | 0% | 0% |
Based on hybrid electric cars in the 2017-2020 build-year band, from 292 to 569 cars at each age.
Mk1 (AE) variants compared
IONIQ Mk1 (AE) variants built around 2018
The fail rate for each IONIQ Mk1 (AE) variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.
Hybrid electric
- IONIQ14.2%8,012 tests
Electricity
- IONIQ10.4%355 tests
Most common issues on Hyundai IONIQs of this age
This list covers every Hyundai IONIQ built around 2018, whichever generation it is. We don't have a defect list for the Mk1 (AE) on its own.
Most common advisories and fails
In order of the share of MOT tests that recorded each one
- 115.5%Advisory
Tyre worn close to the legal limit or worn on the edge
- 28.2%Advisory
Brake disc worn, pitted or scored, but not seriously weakened
- 37.5%Advisory
Tyre slightly damaged, cracking or perishing
- 44.0%Advisory
Brake pads wearing thin
- 52.1%Minor
One of the number plate lights not working
Based on 8,438 tests
Looking at a Hyundai IONIQ Mk1 (AE) right now?
Enter its number plate to see its full MOT history, risk rating and running costs.
Frequently asked questions
Built around 2018 (7 years old), the Hyundai IONIQ Mk1 (AE) (2016-2022) fails MOTs slightly less often than typical for this age. This is based on 8,438 7-year-old MOT tests from DVSA data. Each retest counts as a test.