2016 Hyundai Ioniq: common problems and what to check
What gets flagged at MOT on 2016 Hyundai Ioniqs, from 468 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 468 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What gets flagged at MOT
The share of 2016 Hyundai Ioniq MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres28% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Brakes16% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Suspension8% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Wipers, windscreen and mirrors5% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Lights and electrics5% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Seats and seatbelts2% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
Known faults
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- Power cable recall (hybrid, built July 2016 to July 2017)Hybrid, built 2016 to 2017
About 5,000 hybrids built July 2016 to July 2017 were recalled because power cables could overheat.
At the viewing: Ask a Hyundai dealer to confirm the recall was done.
- Power control unit recall (Electric, built Oct 2016 to Mar 2017)Ioniq Electric, built 2016 to 2017
The power control unit on early Ioniq Electrics could crack, let water in and shut the car down.
At the viewing: Ask for proof the recall was done.
Looking at a Hyundai Ioniq?
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2023 | 371 | Tyres 15% |
| 2022 | 10,667 | Tyres 21% |
| 2021 | 12,567 | Tyres 23% |
| 2020 | 7,715 | Tyres 25% |
| 2019 | 9,698 | Tyres 23% |
| 2018 | 8,718 | Tyres 23% |
| 2017 | 5,668 | Tyres 23% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2016 Hyundai Ioniqs registered in 2016. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score