Kia K4
The Kia K4 is a five-seat hatchback that began production in 2014. It is powered by a 1.6-litre four-cylinder petrol engine producing 114 kW, capable of a top speed of 186 km/h. The vehicle measures 4,440 mm in length, has a kerb weight of 1,489 kg, and emits 149 g/km of CO₂.
| Manufacturer | Kia |
|---|---|
| Production | From 2014 |
| Body type | Hatchback |
| Fuel | Petrol |
| Engine power | 122 kW (163 hp) |
| CO₂ (WLTP) | 146 g/km |
| Kerb weight | 1,450 kg |
| Displacement | 1,009 cc |
| Cylinders | 4 |
| Top speed | 186 km/h |
| Drivetrain | Front-wheel drive |
| Fuel economy (comb.) | 7.6 l/100 km |
| Length | 4,663 mm |
|---|---|
| Width | 1,850 mm |
| Height | 1,440 mm |
| Seats | 5 |
| Doors | 5 |
Engine power, CO₂ and kerb weight are registration-weighted averages across the 7 European countries that registered the Kia K4 in 2025 (347 cars). Source: EEA CO₂ monitoring (CC BY 4.0).
New registrations by country (2025)
Number of Kia K4 cars registered for the first time across 7 European countries in 2025.
| Country | Registrations |
|---|---|
| Poland | 195 |
| Germany | 118 |
| Czechia | 22 |
| Slovakia | 8 |
| Spain | 2 |
| Belgium | 1 |
| Hungary | 1 |
Source: EEA CO₂ monitoring (CC BY 4.0), 2025 data.
Engine variants
Different engine versions of the Kia K4 (from registration data). 2 variants.
| Engine | Fuel | Transmission | Top speed | Economy | Model year |
|---|---|---|---|---|---|
| 1.6 l · 4-cyl | Petrol | Automatic | – | 8.3 l/100 km | 2025–2026 |
| 2.0 l · 4-cyl | Petrol | Automatic | – | 7 l/100 km | 2025 |
Source: EPA (US). Fuel economy converted to l/100 km.
Other Kia models
Similar Hatchback models
Common problems & reliability
US owners have filed 50 complaints for the Kia K4, most often about unknown or other, electrical system, lane departure, forward collision avoidance. These are owner-reported issues, useful for spotting recurring weaknesses before you buy.
Based on real owner complaints and inspection data — not an editorial rating. Sources: NHTSA (US, public domain).
Recalls & safety
1 recall recorded in the EU Safety Gate (European market) and 3 in the US-market NHTSA database for the Kia K4. Recalls can flag known weaknesses of the model.
- Passenger carEU · Safety Gate (Belgium)
The product does not comply with the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.
EU Safety Gate · alerted 2026-07-24
- SEAT BELTS:REAR/OTHER:ANCHORAGEUS · NHTSAModel year 2026
Kia America, Inc (Kia) is recalling certain 2027 Kia Telluride and 2026 Kia K4 vehicles. The rear center seat belt anchor buckle in the 2026 K4 and the third-row center seat belt anchor buckle in the 2027 Telluride may not latch properly.
Remedy: Dealers will inspect and replace the anchor buckle assembly, as necessary, free of charge. Owner notification letters were mailed May 5, 2026. Owners may contact Kia at 1-800-333-4542. Kia's number for this recall is SC364. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning March 20, 2026.
NHTSA campaign 26V135000 · reported 06/03/2026
- ENGINE AND ENGINE COOLING:CRITICAL FASTENERSUS · NHTSAModel year 2025
Kia America, Inc. (Kia) is recalling certain 2025 K4 and Sorento vehicles. The connecting rod bolts in the engine may have been improperly tightened, which can cause a loss of drive power.
Remedy: Dealers will replace the sub engine assembly, free of charge. Owner notification letters are expected to be mailed September 12, 2025. Owners may contact Kia customer service at 800-333-4542. Kia's number for this recall is SC349.
NHTSA campaign 25V548000 · reported 25/08/2025
- ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANELUS · NHTSAModel year 2025
Kia America, Inc. (Kia) is recalling certain 2025 Kia K4, 2025-2026 Sorento, Sorento Hybrid, Sorento Plug-In Hybrid Electric (PHEV), 2026 Sportage, Sportage Hybrid, Sportage PHEV, K5, EV9, Carnival, and Carnival Hybrid vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Controls and Displays" and 138, "Tire Pressure Monitoring System."
Remedy: The instrument panel display software will be updated over-the-air (OTA) or by a dealer, free of charge. Owner notification letters are expected to be mailed March 26, 2026. Owners may contact Kia Customer Service at 1-800-333-4542. Kia's number for this recall is SC361. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov on February 9, 2026.
NHTSA campaign 26V046000 · reported 27/01/2026
Sources: EU Safety Gate (European market) and NHTSA (US market). See all Kia recalls.
Frequently asked questions
- What is the top speed of the Kia K4?
- The Kia K4 has a rated top speed of 186 km/h.
- How much power does the Kia K4 have?
- The Kia K4 produces 122 kW (163 hp).
- What are the dimensions of the Kia K4?
- The Kia K4 is 4,663 mm long, 1,850 mm wide and 1,440 mm tall.
- How much does the Kia K4 weigh?
- The Kia K4 has a kerb weight of about 1,450 kg.
- What are the CO2 emissions of the Kia K4?
- The Kia K4 emits 146 g/km of CO2 (WLTP).
- How many seats does the Kia K4 have?
- The Kia K4 has 5 seats.