Across 36,086 MOT tests of the Hyundai Ioniq in the DfT's 2023 MOT data (initial tests, retests excluded), 13.1% failed — about 1 in 8. The parts that fail most are tyres (4.4% of tests), wipers, windscreen and mirrors (4.0%), lights and electrics (3.7%), brakes (2.3%) and exhaust, fuel and emissions (0.4%).
Allowing for age and mileage, the Hyundai Ioniq has 20% fewer MOT failures than the average car of the same age and mileage.
The MOT checks safety and emissions items — brakes, suspension, steering, lights, tyres, body structure and exhaust emissions. It does not test engines, gearboxes or most electronics, so those faults only show up here when they cause an emissions failure or a leak.
Ioniq (2016–2025)
MOT: 13.1% of 36,086 initial tests failed — 20% fewer failures than the average car of the same age and mileage
| # | Part / area | Share of MOT tests failing |
|---|---|---|
| 1 | tyres | 4.4% |
| 2 | wipers, windscreen and mirrors | 4.0% |
| 3 | lights and electrics | 3.7% |
| 4 | brakes | 2.3% |
| 5 | exhaust, fuel and emissions | 0.4% |
Questions
What fails most on a Hyundai Ioniq at MOT?
The most common MOT failure is tyres: 4.4% of Hyundai Ioniq MOT tests in the 2023 data failed on tyres. Next come wipers, windscreen and mirrors (4.0%) and lights and electrics (3.7%).
How often does a Hyundai Ioniq fail its MOT?
13.1% of Hyundai Ioniq MOT tests in the 2023 data failed (about 1 in 8), counting initial tests only, across 36,086 tests. Allowing for age and mileage, that is 20% fewer MOT failures than the average car of the same age and mileage.
Is the Hyundai Ioniq reliable?
On MOT results, the Hyundai Ioniq has 20% fewer MOT failures than the average car of the same age and mileage. MOT data covers safety and emissions items, not engines or gearboxes.
Does this Hyundai Ioniq data cover engine and gearbox problems?
No. The MOT checks safety and emissions items — brakes, suspension, steering, lights, tyres, body structure and exhaust emissions. It does not test engines, gearboxes or most electronics, so those faults only show up here when they cause an emissions failure or a leak.