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Kia K4 buying guide (Ireland, 2026)

What a used Kia K4 costs in Ireland, how it does at the NCT, what goes wrong and what it costs to fix. Based on 41 for sale right now.

Typical asking price€33,400€29,500–€36,400 for most
For sale now410% diesel
In short: the Kia K4 has no especially costly known faults and its most common engine usually lasts about 320k km.

Our take on the Kia K4

Most for sale are hybrids (71%). The 1.0 hybrid is the most common engine (74% of those with a known engine), and it usually lasts around 320k km.

Check a Kia K4's priceNCT pass rate by year

Used Kia K4 prices by year

Typical asking price by registration year, and typical mileage. Private sellers usually take 5–10% less than asking; expect dealers to be a little dearer.

YearTypical priceTypical mileageFor sale
2026€33,4005k km41

Common Kia K4 problems

Known weak spots to check before you buy, with typical Irish garage costs if the problem is there.

Automatic gearbox health · €300–€2,500

Make sure the gear changes are smooth when warm, check for a gearbox warning light and ask if the gearbox oil was ever changed.

Engines and how long they last

EngineUsually lastsMotor tax / yearFor sale
1.0 Hybrid~320k km~€18017
1.0 Petrol~320k km~€1806

"Usually lasts" is the mileage these engines commonly reach before major work; service history matters more than the number.

Parts and upgrades for the Kia K4

Parts for the Kia K4 on eBay.ie

New and used parts from Irish and UK sellers. Check the part number or fit before you buy.

Brake pads (example photo)Brake padsCheck front or rear, and the disc size if there are twoSee on eBay.ie →Brake discs (example photo)Brake discsReplace in pairs, with new padsSee on eBay.ie →Oil filter (example photo)Oil filterChange it at every oil serviceSee on eBay.ie →Wiper blades (example photo)Wiper bladesSplit or smearing blades can fail the NCTSee on eBay.ie →Bulbs (example photo)BulbsA blown bulb is an easy NCT failSee on eBay.ie →Battery (example photo)BatteryCheck the size and terminal layoutSee on eBay.ie →OBD2 fault code reader (example photo)OBD2 fault code readerReads engine fault codes on your phoneSee on eBay.ie →

Example photos, not the exact product (Wikimedia Commons): Treemonster86, CC BY-SA 3.0; Tharish, CC BY-SA 3.0; Dvortygirl, CC BY-SA 3.0; Wesha, Public domain; Mib18, CC BY-SA 3.0; Cjp24, CC BY-SA 4.0; Arp, Public domain.

Upgrades for the Kia K4

Popular add-ons. The mats are made for this model; the rest fit most cars. More car accessories →

Floor mats (example photo)Floor matsMade to fit the Kia K4See on eBay.ie →CarPlay screen (example photo)CarPlay screenAdds Apple CarPlay (and usually Android Auto) to a car without it: sits on the dashSee on eBay.ie →Wireless CarPlay adapter (example photo)Wireless CarPlay adapterFor cars that already have CarPlay with a cableSee on eBay.ie →Reversing camera (example photo)Reversing cameraMakes parking easier; some CarPlay screens come with oneSee on eBay.ie →Phone holder (example photo)Phone holderKeeps your phone off your lap for directionsSee on eBay.ie →Dash cam (example photo)Dash camFootage settles insurance arguments quicklySee on eBay.ie →

Example photos, not the exact product (Wikimedia Commons): Keystones, CC BY-SA 3.0; Butterhimmel, CC BY-SA 4.0; Sunnyboy122, CC0; https://www.flickr.com/photos/banoootah_qtr/, CC BY 2.0; Shixart1985, CC BY 2.0; Ellin Beltz, CC BY-SA 3.0.

Before you buy a used Kia K4

Run a history check on the reg (write-off, finance owing, mileage), ask when the last service was done and for receipts, and start it from cold yourself. The used car checklist takes you through a viewing step by step.

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