The Kia EV6 is a flagship electric crossover built on the Hyundai E-GMP platform — shared with the Hyundai Ioniq 5 and Genesis GV60. One of the most capable and well-reviewed electric cars in the UK. Most UK examples are still within Kia's 7-year warranty.
Quick Facts — Kia EV6
Common Engines
58 kWh RWD, 77.4 kWh RWD, 77.4 kWh AWD GT-Line, GT AWD
6 Most Common Kia EV6 Problems
These are the faults most frequently seen on the Kia EV6 by UK garages — ranked by how commonly they occur and what they cost to fix.
Some EV6 owners have experienced issues following over-the-air software updates — charging speed reductions, ADAS malfunctions and infotainment glitches. Kia has issued multiple patches.
💷 Typical repair cost: £0–£300
The EV6 heat pump can reduce range significantly in very cold UK winter conditions. Not a fault but a known characteristic.
💷 Typical repair cost: N/A
Early EV6 models had some compatibility issues with certain 800V ultra-rapid chargers. Kia software updates have resolved most of these.
💷 Typical repair cost: £0–£200
Rear brake squeal after inactivity is reported — surface rust on rear discs causes noise until the brakes bed in again.
💷 Typical repair cost: £0–£300
Some EV6 owners report wind noise from the panoramic roof seal at higher speeds.
💷 Typical repair cost: £0–£200
The 12V auxiliary battery can fail on older examples causing random electrical faults. A relatively easy fix.
💷 Typical repair cost: £100–£220
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Kia EV6 — MOT Tips
All high-voltage system warning lights must be clear. ADAS systems must function correctly. Charging port must operate. 12V auxiliary battery health should be verified on older examples.
Engine management light on before your MOT? It's an automatic fail. Run a
MotorLoom diagnostic for £1.99 to get the likely cause and repair cost before booking the test.
Kia EV6 Tyres
Most Kia EV6 models run 235/55 R19 or 255/45 R20 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.
Summary
The EV6 is an outstanding electric car — fast, capable and well-equipped. Most UK examples are still under Kia's 7-year warranty. Software behaviour and charging system reliability are the main areas to monitor as the fleet ages.
If your Kia EV6 has a warning light on or a symptom you can't identify, a MotorLoom diagnostic report for £1.99 gives you likely fault causes, UK repair cost estimates and MOT risk — instantly.
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