MOT failure data · 2025

Hyundai Ioniq MOT problems

Across every Hyundai Ioniq that failed its 2025 MOT, the defect testers recorded most often was tread depth tread depth below requirements of 1.6mm, on 12.44% of failure items. The broadest problem area was tyres at 34.58%. These are recorded defects across the model, not a diagnosis of any one car.

Most common Hyundai Ioniq MOT failures

#	Recorded defect	Area	Share
1	Tread depth tread depth below requirements of 1.6mm	Tyres	12.44%
2	Condition has a cut in excess of the requirements deep enough to reach the ply or cords	Tyres	9.81%
3	Wipers does not clear the windscreen effectively	Visibility	8.68%
4	Condition has ply or cords exposed	Tyres	5.38%
5	Rbt (sp) efficiency below requirements	Brakes	4.25%
6	Service brake performance efficiency below requirements	Brakes	3.28%
7	Headlamp levelling device inoperative	Lamps, reflectors and electrical equipment	3.27%
8	Brake pads less than 1.5 mm thick	Brakes	2.74%
9	Registration plate lamp(s) inoperative in the case of a single lamp or all lamps	Lamps, reflectors and electrical equipment	2.66%
10	Linkage ball joint dust cover ball joint dust cover no longer prevents the ingress of dirt	Suspension	2.48%

Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.

What this means if you are buying one

Use it as a viewing checklist. If you are looking at a Hyundai Ioniq, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.

The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used Hyundai Ioniq buying guide covers what to check beyond the MOT.

Checking a specific Hyundai Ioniq?

Enter its registration for finance, write-off, stolen, mileage and keeper history.

Other Hyundai models

Hyundai Ioniq MOT FAQs

What does a Hyundai Ioniq most commonly fail its MOT on?

The single most recorded defect on Hyundai Ioniq cars failing their 2025 MOT was "tread depth tread depth below requirements of 1.6mm", appearing on 12.44% of failure items.

Does this mean my Hyundai Ioniq will fail?

No. This is what testers recorded across every Hyundai Ioniq that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Hyundai Ioniq passed 90.39% of its initial tests.

How do I see a specific Hyundai Ioniq's MOT history?

Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.

Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.