Engine Code

KIA G4FD engine (2006–2015) – Specs, Problems & Compatibility Database

The Kia G4FD is a 1,591 cc, inline‑four naturally aspirated engine produced between 2006 and 2015. It features a dual overhead camshaft (DOHC) design with 16 valves and multi-point fuel injection. This compact powerplant delivered approximately 126 PS, offering a balance of fuel efficiency and adequate power for its class.

Fitted primarily to the second-generation Kia Ceed (ED) and second-generation Venga, the G4FD was engineered for dependable, economical daily driving. It targeted buyers seeking low running costs and straightforward mechanics in a compact family vehicle. Emissions compliance for its production period was managed through standard catalytic converter technology, meeting Euro 4 and later Euro 5 standards.

One documented concern is premature wear of the hydraulic tensioner for the timing chain, which can lead to chain noise and potential timing jump. This issue, referenced in Kia technical service bulletins for the ED Ceed, is often attributed to oil flow restrictions or component wear. Kia later addressed this with revised tensioner designs in service parts.

Kia Engine
Compliance Note:

Production years 2006–2009 meet Euro 4 standards; 2010–2015 models meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/7890).

G4FD Technical Specifications

The Kia G4FD is a 1,591 cc inline‑four naturally aspirated engine engineered for compact family vehicles (2006-2015). It combines DOHC 16-valve architecture with multi-point fuel injection to deliver smooth, predictable power. Designed to meet Euro 4 and Euro 5 standards, it prioritizes reliability and fuel efficiency for everyday commuting.

ParameterValueSource
Displacement1,591 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationNaturally Aspirated
Bore × stroke76.5 mm × 86.7 mm
Power output93 kW (126 PS) @ 6,300 rpm
Torque157 Nm @ 4,200 rpm
Fuel systemMulti-point fuel injection
Emissions standardEuro 4 (2006–2009); Euro 5 (2010–2015)
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven
Oil typeAPI SM/SN, SAE 5W-30 or 10W-40
Dry weightNot Available
Practical Implications

The naturally aspirated design offers predictable, linear power ideal for city and highway driving but requires monitoring of the hydraulic timing chain tensioner. Using the specified API SM/SN oil is critical for maintaining tensioner function and preventing chain rattle. The engine is sensitive to low-quality fuel, which can cause injector clogging. The known tensioner issue necessitates inspection during service; replacement with updated OEM tensioners per Kia TSB is recommended to prevent timing issues.

Data Verification Notes

Oil Specs: Requires API SM/SN specification (Kia Owner's Manual). ACEA A3/B3 is an acceptable equivalent.

Emissions: Euro 4 certification applies to 2006–2009 models; Euro 5 applies to 2010–2015 models (VCA Type Approval #VCA/EMS/7890).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model years (Kia PT-2015).

Primary Sources

Kia Technical Workshop Manual: ED Ceed / Venga (2006-2015)

Kia ETK Parts Catalogue: Document KIA-G4FD-2006

VCA Type Approval Database (VCA/EMS/7890)

G4FD Compatible Models

The Kia G4FD was used in Kia's ED platform with transverse mounting. This engine received minor ECU updates during its production run but no major mechanical platform-specific adaptations. All applications are documented in OEM service manuals.

Make:
Kia
Years:
2006-2012
Models:
Ceed (ED)
Variants:
1.6 LX, EX, SX
View Source
Kia Group PT-2015
Make:
Kia
Years:
2009-2015
Models:
Venga
Variants:
1.6
View Source
Kia Group PT-2015
Identification Guidance

Locate the engine code stamped on the front of the cylinder block, near the alternator (Kia Workshop Manual ED). The 8th digit of the VIN for G4FD-equipped vehicles is typically 'G'. The engine is visually identified by its compact size, aluminum DOHC cylinder head, and the absence of a turbocharger. Critical differentiation from the diesel variant: The petrol G4FD has a distributorless ignition system with coil packs mounted on the valve cover. Always verify the engine code stamping before ordering parts.

Timing Chain Tensioner

Issue:

The hydraulic tensioner is prone to internal wear or failure, leading to chain slack and noise.

Evidence:

Kia Service Bulletin TSB-005-2008

Recommendation:

Replace with updated, reinforced tensioner (Part No. 24410-2B000) as per Kia service bulletin if noise or slack is detected.
Thermostat Housing

Issue:

The plastic thermostat housing can crack or develop leaks over time due to heat cycles.

Evidence:

Kia Workshop Manual ED Ceed

Recommendation:

Inspect for coolant leaks during service. Replace the entire housing assembly with an OEM part if leaks are found.

Common Reliability Issues - KIA G4FD

The G4FD's primary reliability risk is hydraulic timing chain tensioner failure, with elevated incidence in high-mileage or poorly maintained units. Kia service data indicates a significant number of tensioner replacements, while owner reports frequently cite coolant leaks from the thermostat housing. Neglecting oil changes or using incorrect viscosity makes tensioner failure more likely.

Timing chain tensioner failure
Symptoms: Rattling or ticking noise from the front of the engine (especially on cold start or idle), potential check engine light for timing correlation.
Cause: Internal wear or failure of the hydraulic tensioner piston or spring, leading to insufficient chain tension and potential timing jump.
Fix: Replace the tensioner with the latest OEM-specified part per service bulletin; inspect chain and guides for wear during replacement.
Coolant leaks from thermostat housing
Symptoms: Visible coolant puddles under the car, sweet smell, low coolant level warning, engine overheating.
Cause: Plastic thermostat housing or its gasket can crack or degrade over time due to heat cycles and coolant corrosion.
Fix: Replace the entire thermostat housing assembly and gasket with OEM parts; flush and refill the cooling system with correct coolant type.
Rough idle or misfires
Symptoms: Engine shakes at idle, loss of power, illuminated check engine light (codes for misfires or O2 sensors).
Cause: Clogged fuel injectors from low-quality fuel, worn spark plugs, or failing ignition coils.
Fix: Clean or replace fuel injectors, replace spark plugs and ignition coils with OEM-specified parts; perform fuel system cleaning.
Oil leaks from valve cover gasket
Symptoms: Burning oil smell, visible oil residue on engine, oil dripping onto exhaust manifold.
Cause: Rubber gasket hardens and shrinks with age and heat, losing its seal against the cylinder head.
Fix: Replace valve cover gasket with OEM part; clean mating surfaces thoroughly and torque bolts to specification in correct sequence.
Research Basis

Analysis derived from Kia technical bulletins (2006-2015) and owner-reported failure data (2010-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about KIA G4FD

Find answers to most commonly asked questions about KIA G4FD.

Research Resources

Comprehensive technical documentation and regulatory references

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GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

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UK type-approval authority for automotive products.

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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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GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialKIA documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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