Fault File
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Hyundai Kona

All generations and engines together · 48,453 MOT tests in the 2025 data · typical mileage at age 7: 50k

First-time failure at age 7
16.7%
Across 2,644 tests. The average across all tracked models is 19.5%.
Rank at age 7
89 of 239
1 = lowest failure rate among the models tracked.
Typical mileage at age 7
50k miles
Check the mileage view below; low-mileage models can look better by age than they are.

Generation

Split by first-registration year. Cars registered in a changeover year can belong to either generation.

How this model wears

Hyundai KonaClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 9,914 tests in this band.

A suspension pin, bush or joint excessively worn
Advisory
1.2%class 5.9%
Engine MIL illuminated indicating a malfunction
Fail
0.9%class 0.5%
Excessive fluctuation in brake effort through each wheel revolution.
Advisory
0.9%class 0.6%
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED
Fail
0.8%class 0.8%
A suspension joint dust cover missing or no longer prevents the ingress of dirt etc
Fail
0.5%class 0.3%
Significant brake effort recorded with no brake applied indicating a binding brake
Advisory
0.5%class 0.7%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Tyre tread depth not in accordance with the requirements
Advisory
25.0%class 22.9%
A tyre seriously damaged
Advisory
24.0%class 13.4%
A brake lining or pad worn below 1.5mm
Advisory
15.3%class 8.7%
Brake disc or drum excessively weakened, insecure or fractured
Advisory
12.9%class 10.1%
A brake lining or pad worn below 1.5mm
Fail
3.4%class 1.6%
Child Seat fitted not allowing full inspection of adult belt
Advisory
3.4%class 2.2%
Nail in tyre
Advisory
3.0%class 1.6%
Brake disc or drum significantly and obviously worn
Advisory
2.7%class 3.4%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

Front-end creaks, knocks and clunks

Partly in the MOT data

Owners on Kona and Kona N forums report creaks and clunks from the front end, usually over speed bumps or when turning on full lock; on the Kona N some traced it to the electronic limited-slip differential rather than a worn bush or mount. This is one of the few folklore complaints that lines up with the measured MOT data for this class, where suspension is the standout failure category. Reviewers have also marked the ride as firm and bumpy on the larger wheel options, which won't help wear on what's underneath. No manufacturer bulletin covers it and there's no consistent mileage pattern in what owners describe, so treat it as a listen-for-it item on the test drive rather than a guaranteed fault.

No fixed mileage pattern reported · sources: n-cars.net, myhyundaikona.com forum, What Car / Auto Express reviews

1.6 T-GDi DCT hesitation and low-speed judder

DCT automatics only

On the twin-clutch automatic version of the 1.6 T-GDi, owners and Honest John readers report hesitant, jerky pull-away from a stop and occasional judder or a brief stall with a message telling the driver to restart the car manually. It's the same family of dry dual-clutch complaint that's well documented across Hyundai and Kia's smaller automatics in general. No UK recall or TSB has surfaced for it and dealers have sometimes struggled to reproduce the fault on the ramp, so treat this as a repeatedly reported pattern rather than an officially confirmed one. Manual Kona models aren't affected.

Reported from early ownership · sources: Honest John reader reports, DCT-specific fault writeups

1.6 CRDi diesel: brake judder and DPF/EGR clogging

Diesel only

Two separate diesel-specific gripes turn up repeatedly: front brake discs juddering under gentle, low-speed braking from as early as 8,000 miles (Hyundai authorised replacement discs and pads on at least one reported case, though parts availability was patchy), and DPF warning lights returning even after a successful forced regeneration, pointing to upstream EGR, sensor or injector wear on cars used mostly for short trips. Left alone, a DPF/EGR clean or replacement can run into four figures. No recall covers either issue.

Brake judder from ~8,000 miles, DPF issues reported around 45-50k miles · sources: Honest John, What Car, StartMyCar owner report, The DPF Cleaning Co

Kona Electric: high-voltage battery recall

Electric only

Two UK safety recalls were issued for the Kona Electric's battery: one in October 2020 for a battery management system fault that could damage individual cells, and one in April 2021 for a potential electrical short in the pack, together covering roughly 2,900 UK cars. The remedy is a BMS software update, an inspection of the battery data, and replacement of the module or full pack if the inspection finds a fault. Always check the VIN on Hyundai's own recall checker before buying an early Kona Electric, since a completed recall should show as closed.

UK recalls R/2020/308 and R/2021/087 · sources: GOV.UK vehicle recall checker, Zap-Map

Kona Electric 12V battery drain

Electric only

A recurring nuisance on the Electric: the small 12V battery that runs the car's electronics drains flat overnight or after the car sits for a few days, sometimes needing a jump start or a full replacement. It shows up repeatedly on owner forums across several years of the car and doesn't seem tied to one specific age or mileage. Hyundai hasn't officially acknowledged a fault; the usual dealer advice is to check the 12V battery's condition and any software updates relating to the car's sleep-mode power draw.

Reported across ownership ages · sources: Reddit r/KonaEV, konaforums.co.uk, Hyundai Forums

Viewing one? Ask this

Built from the two sections above.

On a diesel, brake gently and repeatedly from low speed on a cold start. Any judder through the pedal points to the early disc wear owners report.
Check the DPF warning light history and ask what the car is mostly used for. Mostly short trips plus an early or recurring DPF light means expensive regen or filter work is likely.
On a DCT automatic, pull away from a dead stop several times, including on an incline. Hesitation, a jerky first-gear bite or any stall warning points to the known low-speed clutch fault.
On a Kona Electric, check the recall status using the VIN on Hyundai's recall checker. An outstanding battery recall means a free fix is owed but also that the pack hasn't been inspected yet.
Ask an EV seller if the car has ever needed a jump start or a new 12V battery. Recurring 12V drain is a known nuisance fault, not a one-off.
Listen for creaks or knocks from the front end over speed bumps and on full steering lock. A clunk here is the suspension wear owners report; don't dismiss it as just road noise.
Read the full MOT history, not just the pass/fail line. Repeated suspension advisories on the same axle mean it's being patched, not fixed.

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