2015 Kia K900 — Full Specifications
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The 2015 Kia K900 is a saloon/sedan offered with 2 engines (3.8L 6-cyl, 5L 8-cyl). Its most fuel-efficient configuration returns around 25 mpg (UK) / 21 mpg (US EPA) combined, with 22–25 mpg (UK) across all configurations. Owners often keep a Kia K900 workshop manual to hand for servicing and repairs.
Full Specifications
| Engine (most efficient) | 3.8L 6-cyl |
|---|---|
| Engine options | 3.8L 6-cyl · 5L 8-cyl |
| Transmission (most efficient) | Automatic 8-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 110 cu ft (3,115 L) |
| Luggage Volume (EPA) | 16 cu ft (453 L) |
| Fuel Economy (UK) | 25 combined / 22 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 21 combined / 18 city / 26 highway mpg |
| CO₂ Emissions | 266 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,200 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2015 Kia K900 across 2 engines (3.8L 6-cyl, 5L 8-cyl). Combined fuel economy ranges from 18 to 21 mpg (US), or 22 to 25 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3.8L 6-cyl | Automatic 8-spd | Rear-Wheel Drive | 25 | 21 (18/26) | 266 | $3,200 |
| 5L 8-cyl | Automatic 8-spd | Rear-Wheel Drive | 22 | 18 (15/23) | 307 | $4,550 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 110 cubic feet (about 3,115 litres) and luggage volume at 16 cubic feet (about 453 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2015 Kia K900
Running Costs: 2015 Kia K900
Covering around 8,000 miles a year in a 2015 Kia K900 at 25 mpg combined, expect roughly 1,455 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,200 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2015 Kia K900 Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2015 Kia K900 (as of 6 October 2026). Most affected areas: Service brakes (1), Exterior lighting (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Service brakes — campaign 23V652000, reported 25 September 2023. Risk: An engine compartment fire while parked or driving can increase the risk of injury.
- Exterior lighting — campaign 16V210000, reported 12 April 2016. Risk: Loss of headlight illumination may reduce visibility and increase the risk of a crash.
Owners have filed 54 complaints with NHTSA about the 2015 Kia K900. The most-reported areas are Exterior lighting (18), Air bags (14), Electrical system (9). Complaints include 1 reported crash, 1 reported fire, 1 reported injury.
Used-buyer checklist for the 2015 Kia K900
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Lighting (1 recall campaign · 18 owner complaints) — Check every exterior light works and look for moisture inside the lamp housings.
- Air bags (14 owner complaints) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
- Electrical system (9 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Brakes (1 recall campaign) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
Kia models in our database average about 34 mpg (UK) combined on their most efficient configuration; the 2015 Kia K900's 25 mpg is 9 mpg below that make average. Its 266 g/km CO₂ figure is 59 g/km higher than the 207 g/km Kia average.
Of the 6 Kia K900 model years we cover, the 2015 is the most economical on its best configuration (25 mpg UK combined). See every Kia K900 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2015 Kia K900
Frequently Asked Questions
What engine does the 2015 Kia K900 have?
EPA lists 2 engines for the 2015 Kia K900: 3.8L 6-cyl, 5L 8-cyl. The most fuel-efficient configuration pairs the 3.8L 6-cyl with a automatic 8-spd.
What is the fuel economy of the 2015 Kia K900?
The most efficient configuration returns around 25 mpg (UK) combined, or 21 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 22 to 25 mpg.
How much does the 2015 Kia K900 cost to fuel per year?
The US EPA estimates about $3,200 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2015 Kia K900 have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2015 Kia K900 (as of 6 October 2026). Most affected areas: Service brakes (1), Exterior lighting (1). 1 campaign carried a “do not drive” or “park outside” advisory. A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2015 Kia K900?
Among the 54 owner complaints filed with NHTSA, the most-reported areas are Exterior lighting (18 complaints), Air bags (14 complaints), Electrical system (9 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2015 Kia K900 have?
EPA measures interior passenger volume at 110 cubic feet (about 3,115 litres) and luggage volume at 16 cubic feet (about 453 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.