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 fi…
Kia
Production years 2010–2015 meet Euro 5 standards for applicable markets .
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 | Refer to vehicle handbook / manufacturer specification | |
Dry weight | Approx. 120 kg |
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.
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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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The G4KA is generally considered a very reliable and robust engine. Its naturally aspirated, MPI design is inherently simple and durable. The main long-term consideration is managing the CVVT system with strict adherence to oil change intervals. With proper maintenance, it can easily exceed 200,000 km without major issues.
The most frequently noted issues are CVVT solenoid failures, wear of engine mounts, ignition coil failures causing misfires, and oil leaks from the valve cover gasket. These are generally inexpensive and straightforward to fix with OEM parts.
The G4KA 1.8L MPI engine was primarily used in the second-generation Kia cee'd (ED, 2010-2015). It was also offered in the first-generation Kia Soul (AM, 2010-2013) as the larger petrol engine option.
The G4KA has limited tuning potential due to its naturally aspirated design and conservative ECU mapping. Simple modifications like a cold air intake or performance exhaust might yield minor gains (5-10 PS), but significant power increases are not feasible without forced induction, which is complex and costly. It's best suited to its stock, reliable configuration.
Official combined figures for the cee'd are approximately 7.2 L/100km (39 mpg UK). Real-world consumption typically ranges from 8.0-9.5 L/100km (35-29 mpg UK) in mixed driving, which was considered good for its time and class.
Yes. The Kia G4KA is an interference engine. If the timing chain were to fail or jump timing significantly, the pistons would collide with the open valves, resulting in severe internal engine damage requiring a major rebuild or replacement.
Kia specifies a full synthetic 5W-30 engine oil meeting API SM (or newer) and ILSAC GF-4 (or newer) standards. Using Kia Genuine oil or a high-quality equivalent is crucial for protecting the CVVT system. Change intervals should not exceed 10,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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