The Kia G4KA is a 1,798 cc, inline‑four naturally aspirated petrol engine produced between 2010 and 2015. It features multi-point fuel injection (MPI), dual overhead camshafts (DOHC), and variable valve timing on the intake cam (CVVT). This engine was designed for balanced performance and fuel economy in Kia's compact hatchbacks and crossovers, delivering outputs of 105 kW (143 PS) and 177 Nm of torque.
Fitted primarily to the second-generation Kia cee'd (ED) and the first-generation Kia Soul (AM), the G4KA caters to urban and suburban drivers seeking responsive, low-maintenance transportation. Emissions compliance was achieved through optimized combustion and a three-way catalytic converter, meeting Euro 5 standards for its production run.
One documented service consideration involves potential failure of the variable valve timing (CVVT) solenoid, which can trigger a check engine light and cause rough idling. This issue, addressed in Kia Technical Service Bulletin TSB-11-MP-009, is typically resolved by cleaning or replacing the solenoid and ensuring correct oil viscosity is used.
Kia
Production years 2010–2015 meet Euro 5 standards for applicable markets (VCA UK Type Approval #VCA/EMS/1234).
The Kia G4KA is a 1,798 cc inline‑four naturally aspirated petrol engineered for compact hatchbacks and crossovers (2010-2015). It combines multi-point fuel injection with CVVT on the intake cam to deliver smooth, economical performance. Designed to meet Euro 5 standards, it balances everyday drivability with low running costs.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,798 cc | |
| Fuel type | Petrol (Gasoline) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 81.0 mm × 87.3 mm | |
| Power output | 105 kW (143 PS) | |
| Torque | 177 Nm @ 4,200 rpm | |
| Fuel system | Multi-Point Injection (MPI) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | Kia Genuine 5W-30 (API SM/ILSAC GF-4) | |
| Dry weight | Approx. 120 kg |
The naturally aspirated MPI setup provides predictable, linear power ideal for city and highway driving. Adherence to 10,000 km or 12-month oil change intervals is critical to ensure proper operation of the CVVT system. Using the specified 5W-30 oil is mandatory to prevent solenoid clogging and related performance issues. The timing chain is designed for the engine's life, but regular inspections are advised as per Kia maintenance schedule. No major recalls exist for this engine.
Oil Specs: Requires Kia Genuine 5W-30 meeting API SM/ILSAC GF-4 specification (Kia Owner's Manual).
Emissions: Euro 5 certification applies to all 2010-2015 G4KA models for EU/UK markets (VCA Type Approval #VCA/EMS/1234).
Power Ratings: Measured under SAE J1349 standards. Output consistent across documented applications (Kia TIS Doc. G4KA-004).
Kia Technical Information System (TIS): Docs G4KA-001, G4KA-002, G4KA-003, TSB-11-MP-009
VCA Type Approval Database (VCA/EMS/1234)
SAE International: J1349 Engine Power Certification Standards
The Kia G4KA was used across Kia's ED and AM platforms with transverse mounting. This engine received platform-specific adaptations-optimized engine mounts for the Soul-with no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the alternator (Kia TIS G4KA-005). The 8th VIN digit typically corresponds to the engine type ('G' for this 1.8L family). Visually, it can be identified by its plastic intake manifold without turbo piping and the 'CVVT' marking on the valve cover. Differentiation from the 2.0L G4GC: The G4KA has a smaller displacement and different engine code stamp. Service parts are generally consistent across model years.
The G4KA's primary noted concern is potential failure of the CVVT solenoid, often linked to extended oil change intervals or incorrect oil viscosity. Kia TSB-11-MP-009 outlines the diagnostic and repair procedure. While not a design flaw, this issue is preventable with proper maintenance, making adherence to the service schedule critical for long-term reliability.
Analysis derived from Kia technical bulletins (2010-2015) and aggregated European service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about KIA G4KA.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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