HYUNDAI IONIQ Common Problems & Reliability

Based on 964 MOT tests from 155 vehicles analysed by VehicleScore. The figures below describe that VehicleScore sample. Recurring issues seen in VehicleScore MOT data are not a claim that every HYUNDAI IONIQ has the same fault.

HYUNDAI IONIQ's have a extremely good reliability rating of 805/999. The score was calculated from the average of every HYUNDAI IONIQ that has had a registered MOT.

We calculated all of the below figures by getting the score from each vehicle make/model/year/fuel, which are each calculated a score. We then generate the average score, taking into account factors such as mileage and emissions.

Also check BHP & performance, road tax, fuel economy, and CO2 emissions for the HYUNDAI IONIQ.

HYUNDAI IONIQ (example)

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Fuel Type	Year	Reliability Score	Avg Mileage	Sample Size
N/A	N/A	807/999Excellent	79,685 miles	2,099 vehicles
N/A	N/A	803/999Excellent	81,474 miles	1,984 vehicles

How reliable is the HYUNDAI IONIQ?

Based on 964 MOT tests from 155 vehicles analysed by VehicleScore.

Vehicles

155

MOT tests

964

Pass rate

87.7%

Median mileage

66,282 mi

Recurring issues seen in VehicleScore MOT data are inspection findings from this sample. They are not a statement that every HYUNDAI IONIQ has the same fault. The median VehicleScore in this sample is 850 out of 999.

Common HYUNDAI IONIQ MOT problems

These groups combine equivalent MOT comments, such as the same tyre note on different corners. Counts are comment occurrences in the sample, not a percentage of cars.

Tyre wear

VehicleScore MOT data includes 208 advisory comments and 25 failure comments in this group. Seen as both an advisory and a failure reason. These are comment occurrences, not a share of all cars.

These MOT comments record tyres that were worn, damaged, or close to the legal tread depth when the car was inspected.

What to inspect

Check the tread depth and look for uneven wear, cracking, or damage on all four tyres.

Example MOT wording: NEARSIDE FRONT TYRE WORN CLOSE TO LEGAL LIMIT/WORN ON EDGE (5.2.3 (E))

Brake disc wear

VehicleScore MOT data includes 40 advisory comments in this group. Seen mainly as an advisory. These are comment occurrences, not a share of all cars.

These MOT comments record brake discs that were worn, scored, pitted, or corroded.

What to inspect

Look at the disc faces for deep scoring, a lip at the edge, and corrosion.

Example MOT wording: REAR BRAKE DISC WORN, PITTED OR SCORED, BUT NOT SERIOUSLY WEAKENED (1.1.14 (A) (II))

Parking brake faults

VehicleScore MOT data includes 10 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.

These MOT comments record a parking brake that did not hold well enough or had a component defect.

What to inspect

Test that the parking brake holds the car on a slope and releases cleanly.

Example MOT wording: PARKING BRAKE EFFICIENCY BELOW REQUIREMENTS (1.4.2 (A) (I))

Lamp and bulb faults

VehicleScore MOT data includes 8 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.

These MOT comments record a lamp or bulb other than a headlamp or indicator.

What to inspect

Switch on the side, brake, fog, and number-plate lamps.

Example MOT wording: SUPPLEMENTARY RESTRAINT SYSTEM WARNING LAMP INDICATES A FAULT (7.1.6 (A))

Windscreen damage

VehicleScore MOT data includes 6 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.

These MOT comments record chips, cracks, or other windscreen damage in the driver’s view.

What to inspect

Look for chips and cracks, especially in the area swept by the wipers.

Example MOT wording: NEARSIDE FRONT WINDSCREEN WIPER DOES NOT CLEAR THE WINDSCREEN EFFECTIVELY (3.4 (B) (II))

HYUNDAI IONIQ MOT reliability by year

A model year is only commented on when VehicleScore has at least 5 vehicles from that year.

Year	Vehicles	MOT tests	Pass rate	Recurring issues seen
2022	13	38	92.1%	Tyre wear
2021	22	96	88.5%	Tyre wear, Brake disc wear
2020	26	125	87.2%	Tyre wear, Brake disc wear
2019	30	178	91%	Tyre wear, Brake disc wear
2018	37	281	84.3%	Tyre wear, Brake disc wear
2017	22	214	88.8%	Tyre wear, Brake disc wear

What to check when buying a used HYUNDAI IONIQ

This is an inspection checklist based on MOT comments in the VehicleScore sample. It does not mean the car you are looking at has these defects.

Tyre wear. Check the tread depth and look for uneven wear, cracking, or damage on all four tyres.
Brake disc wear. Look at the disc faces for deep scoring, a lip at the edge, and corrosion.
Parking brake faults. Test that the parking brake holds the car on a slope and releases cleanly.
Lamp and bulb faults. Switch on the side, brake, fog, and number-plate lamps.
Windscreen damage. Look for chips and cracks, especially in the area swept by the wipers.

Buying a HYUNDAI IONIQ?

Common problems tell you what can affect HYUNDAI IONIQs generally. VehicleScore can check the history of the actual car you're considering.

Where does this data come from?

VehicleScore analyses MOT histories from vehicles in its own dataset. Sample sizes vary by model, and a small sample is labelled as such. MOT data records roadworthiness and inspection defects. It does not capture every mechanical or electronic problem a car can have, and a comment on one test is not proof that the model has an inherent fault.

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