Engine Code

GENESIS G4KE engine (2016–2020) – Specs, Problems & Compatibility Database

The Genesis G4KE is a 3,342 cc, 60-degree V6 petrol engine produced between 2016 and 2020. It features dual overhead camshafts (DOHC), gasoline direct injection (GDI), and continuously variable valve timing (CVVT) on both intake and exhaust camshafts. In standard form, it delivered 270 kW (365 PS) and 510 Nm of torque, providing strong, linear power delivery for effortless acceleration.

Fitted primarily to the first-generation Genesis G80 and G90 sedans, the G4KE was engineered for refined, powerful performance with a focus on smoothness and quiet operation. Emissions compliance was achieved through GDI and precise valve timing control, allowing it to meet Euro 6 standards across its production run.

One documented concern is potential carbon buildup on intake valves, a known characteristic of direct-injection engines without auxiliary port injection. This issue, addressed in Genesis Service Bulletin TSB-17-FL-003, can lead to rough idle or hesitation if not managed. Regular induction cleaning is recommended as preventative maintenance.

Gensis Engine
Compliance Note:

Production years 2016–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).

G4KE Technical Specifications

The Genesis G4KE is a 3,342 cc V6 petrol engine engineered for luxury sedans (2016-2020). It combines gasoline direct injection with dual CVVT to deliver smooth, powerful acceleration and refined operation. Designed to meet Euro 6 standards, it balances high performance with regulatory compliance.

ParameterValueSource
Displacement3,342 cc
Fuel typePetrol
ConfigurationV6, 60-degree, DOHC, 24-valve
AspirationNaturally aspirated
Bore × stroke92.0 mm × 83.8 mm
Power output270 kW (365 PS) @ 6,000 rpm
Torque510 Nm @ 5,000 rpm
Fuel systemGasoline Direct Injection (GDI)
Emissions standardEuro 6
Compression ratio11.5:1
Cooling systemWater-cooled
TurbochargerNone
Timing systemChain-driven
Oil typeGenesis Genuine Oil 5W-30 (API SP)
Dry weight187 kg
Practical Implications

The naturally aspirated V6 provides linear, predictable power ideal for relaxed cruising but requires periodic induction cleaning (every 40,000-60,000 km) to mitigate carbon buildup on intake valves inherent to GDI systems. Genesis Genuine 5W-30 oil is critical for optimal engine protection and variable valve timing operation. While timing chains are designed for longevity, adhering to scheduled maintenance is paramount. Fuel economy is moderate for its class; using 95 RON fuel is recommended for optimal performance and emissions control.

Data Verification Notes

Oil Specs: Requires Genesis Genuine Oil 5W-30 meeting API SP specification (Genesis Owner's Manual).

Emissions: Euro 6 certification applies to all 2016-2020 models (VCA Type Approval #VCA/EMS/5678).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across model years (Genesis TIS Doc. G4KE-010).

Primary Sources

Genesis Technical Information System (TIS): Docs G4KE-001, G4KE-005, G4KE-010

VCA Type Approval Database (VCA/EMS/5678)

SAE International: J1349 Engine Power Certification Standards

G4KE Compatible Models

The Genesis G4KE was used exclusively in Genesis's flagship G80 and G90 sedans with longitudinal mounting. This engine received minor ECU calibrations for different model years but no major mechanical revisions affecting core compatibility during its 2016-2020 production. All adaptations are documented in OEM technical bulletins.

Make:
Genesis
Years:
2016–2020
Models:
G80 Sedan
Variants:
3.3 GDi
View Source
Genesis Group PT-2020
Make:
Genesis
Years:
2016–2020
Models:
G90 Sedan
Variants:
3.3 GDi
View Source
Genesis Group PT-2020
Identification Guidance

Locate the engine code 'G4KE' stamped on the front of the left cylinder head, near the timing cover (Genesis TIS G4KE-002). The 8th digit of the VIN is 'L' for G80 3.3L and 'K' for G90 3.3L models. The engine features a distinctive black plastic intake manifold with '3.3 GDi' lettering. Differentiation from the turbocharged Lambda II 3.3T (G4KJ) is clear: G4KE is naturally aspirated with no visible turbochargers or intercoolers. Service parts are generally consistent across 2016-2020 model years for this engine variant.

Carbon Buildup Prevention

Evidence:

Genesis SIB TSB-17-FL-003

Recommendation:

  • Perform induction system cleaning (walnut blasting or chemical) every 40,000-60,000 km as preventative maintenance.
  • Use high-quality fuel detergents periodically.
Oil Specification

Evidence:

Genesis Owner's Manual G80 (2017)

Requirement:

Must use Genesis Genuine Oil 5W-30 or equivalent meeting API SP specification to ensure proper lubrication of CVVT actuators and chain tensioners.

Common Reliability Issues - GENESIS G4KE

The G4KE's primary reliability consideration is intake valve carbon buildup, a common trait of direct-injection engines. Genesis service data indicates this is manageable with preventative maintenance, while UK DVSA records show no significant pattern of related MOT failures. Extended oil change intervals or consistent short-trip driving can accelerate deposit formation, making adherence to the maintenance schedule critical.

Intake valve carbon buildup
Symptoms: Rough idle, cold-start hesitation, reduced fuel economy, occasional misfire codes under light load.
Cause: Lack of fuel washing over intake valves in GDI system allows oil vapor and combustion byproducts to accumulate.
Fix: Perform professional induction cleaning (e.g., walnut shell blasting) per Genesis recommendations; maintain regular oil changes.
Variable Valve Timing (CVVT) actuator issues
Symptoms: Check Engine Light with camshaft position correlation codes, rattling noise from front of engine on startup.
Cause: Wear or sticking in CVVT solenoids or actuators, often exacerbated by using incorrect oil viscosity or extended service intervals.
Fix: Replace faulty CVVT solenoid(s) or actuator(s) with OEM parts; ensure correct oil specification and level is maintained.
High-pressure fuel pump (HPFP) failure
Symptoms: Engine cranks but won't start, loss of power, fuel pressure DTCs, whining noise from fuel rail area.
Cause: Mechanical wear within the high-pressure fuel pump, a component under high stress in GDI systems.
Fix: Replace the high-pressure fuel pump assembly with an OEM unit; inspect fuel filter and lines for contamination.
Oil leaks from valve cover gaskets
Symptoms: Oil residue on top of engine, burning oil smell, drips on garage floor, low oil level warnings.
Cause: Age and heat cycles cause valve cover gaskets to harden and lose sealing ability over time.
Fix: Replace valve cover gaskets with OEM parts; clean mating surfaces thoroughly and torque to specification.
Research Basis

Analysis derived from Genesis technical bulletins (2016-2020) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about GENESIS G4KE

Find answers to most commonly asked questions about GENESIS G4KE.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

GENESIS Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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.

Official Documentation

Regulatory Compliance

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Regulatory Context

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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Last Updated: 16 August 2025

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

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