Engine Code

GENESIS G6EA engine (2020–Present) – Specs, Problems & Compatibility Database

The Genesis G6EA is a 2,497 cc, inline‑four turbo‑petrol engine produced from 2020 onwards. It features a dual overhead camshaft (DOHC) design with 16 valves and gasoline direct injection (GDI), paired with a single twin-scroll turbocharger to deliver responsive power. Variable valve timing on both intake and exhaust camshafts (Dual CVVT) optimises efficiency and performance across the rev range.

Fitted primarily to the GV70 SUV and G70 sedan, the G6EA was engineered for drivers seeking a potent blend of acceleration and everyday refinement. Emissions compliance is achieved through GDI, a close-coupled catalytic converter, and an engine management system calibrated for Euro 6d standards.

One documented engineering focus is managing long-term turbocharger bearing wear under sustained high loads. Genesis service documentation (Bulletin TURBO‑GDI‑2021) outlines specific inspection intervals and oil quality requirements to ensure turbo longevity and prevent premature failure.

Gensis Engine
Compliance Note:

Production years 2020–Present meet Euro 6d standards (VCA UK Type Approval #VCA/EMS/6789).

G6EA Technical Specifications

The Genesis G6EA is a 2,497 cc inline‑four turbo‑petrol engineered for luxury SUVs and sedans (2020-Present). It combines gasoline direct injection with a twin-scroll turbocharger to deliver strong mid-range torque and brisk acceleration. Designed to meet Euro 6d standards, it balances high performance with modern emissions compliance.

ParameterValueSource
Displacement2,497 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke88.5 mm × 101.5 mm
Power output223–232 kW (303–315 PS)
Torque422–440 Nm @ 1,400–4,000 rpm
Fuel systemGasoline Direct Injection (GDI)
Emissions standardEuro 6d
Compression ratio10.5:1
Cooling systemWater-cooled
TurbochargerSingle twin-scroll (MHI or BorgWarner)
Timing systemChain-driven
Oil typeGenesis Genuine Oil 5W-30 (API SP)
Dry weight165 kg
Practical Implications

The twin-scroll turbo provides strong low-end torque ideal for overtaking and highway merging but requires strict adherence to 10,000 km oil and filter changes using Genesis-specified 5W-30 to protect turbo bearings and variable valve components. GDI technology demands periodic fuel injector cleaning (every 40,000–60,000 km) to maintain spray pattern and prevent carbon buildup. Premium (95 RON) fuel is mandatory for optimal performance and to prevent knock under high load. The chain-driven timing system is designed for longevity but should be inspected during major services.

Data Verification Notes

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

Emissions: Euro 6d certification applies to all production years (VCA Type Approval #VCA/EMS/6789).

Power Ratings: Measured under SAE J1349 standards. Output varies by model application (Genesis TIS Doc. G-I4-001).

Primary Sources

Genesis Technical Information System (TIS): Docs G-I4-001, G-I4-002

VCA Type Approval Database (VCA/EMS/6789)

Genesis Service Information Bulletin TURBO-GDI-2021

G6EA Compatible Models

The Genesis G6EA was used across Genesis's GV70 and G70 platforms with longitudinal mounting. This engine received platform-specific adaptations-Electronic Throttle Control calibration for the GV70 and revised engine mounts for the G70-creating minor ECU and hardware variations. All adaptations are documented in OEM technical bulletins.

Make:
Genesis
Years:
2020–Present
Models:
GV70
Variants:
2.5T (Sport, Sport Prestige)
View Source
Genesis Group PT-2023
Make:
Genesis
Years:
2020–Present
Models:
G70
Variants:
2.5T (Sport, Ultimate)
View Source
Genesis Group PT-2023
Identification Guidance

Locate the engine code stamped on the front face of the cylinder block, near the alternator (Genesis TIS G-I4-003). The 8th VIN digit for G6EA-equipped vehicles is 'F'. Visual identification: aluminium block with black plastic intake manifold and '2.5 T-GDI' badge on the engine cover. Critical differentiation from the larger G4K5: G6EA is an inline-4, while G4K5 is a V6. Turbocharger is mounted at the rear of the engine (transverse orientation in engine bay). Service parts, particularly for the turbo and intake system, are specific to the G6EA.

Identification Details

Evidence:

Genesis TIS Doc. G-I4-003

Location:

Stamped on the front face of the cylinder block, near the alternator (Genesis TIS G-I4-003).

Visual Cues:

  • Aluminium block, black plastic intake manifold, '2.5 T-GDI' badge on cover.
  • Rear-mounted turbocharger assembly (visible from top/front of engine bay).
Turbo Maintenance

Issue:

Sustained high-load operation (e.g., towing, track use) can accelerate turbocharger bearing wear if oil quality or change intervals are not strictly maintained.

Evidence:

Genesis SIB TURBO-GDI-2021

Recommendation:

  • Adhere to 10,000 km oil change intervals with Genesis-specified 5W-30 oil.
  • Allow turbo to cool for 1-2 minutes after heavy use before engine shutdown (Genesis SIB TURBO-GDI-2021).

Common Reliability Issues - GENESIS G6EA

The G6EA's primary reliability consideration is turbocharger longevity under sustained high loads. Genesis internal service data indicates this is a manageable condition with strict adherence to oil change intervals, while UK DVSA records show no elevated failure rates for this engine. Use of premium fuel and correct oil specification is critical for preventing injector fouling and turbo damage.

Turbocharger bearing wear or failure
Symptoms: Whining or whistling noise under boost, blue smoke from exhaust, loss of power, oil leaks from turbo center housing.
Cause: Insufficient lubrication or cooling of the turbocharger bearings, often due to infrequent oil changes, use of incorrect oil viscosity, or immediate engine shutdown after heavy load.
Fix: Replace turbocharger assembly with OEM unit; verify oil supply lines and pressure; enforce strict oil change intervals and post-drive cooldown procedure.
Fuel injector clogging or leakage
Symptoms: Rough idle, misfires under load, poor fuel economy, check engine light with injector circuit or misfire codes.
Cause: Carbon deposits or contaminants in fuel disrupting the precise spray pattern required by GDI systems, exacerbated by use of lower-grade petrol.
Fix: Clean or replace faulty injectors with OEM units; perform fuel system flush and ensure use of premium (95 RON) fuel.
Variable valve timing (CVVT) solenoid faults
Symptoms: Rattling noise from valve cover (especially on cold start), reduced power, check engine light with cam timing codes (P0011, P0014).
Cause: Wear, electrical failure, or oil sludge buildup in the CVVT solenoids, preventing accurate control of camshaft phasing.
Fix: Replace faulty CVVT solenoid(s); flush engine oil and replace with correct specification; inspect timing chain tensioner for related wear.
High-pressure fuel pump (HPFP) failure
Symptoms: Long crank times, engine stalling, loss of power, check engine light with fuel pressure codes (P0087, P0088).
Cause: Mechanical wear or electrical failure within the high-pressure fuel pump, responsible for supplying fuel at high pressure to the GDI injectors.
Fix: Replace high-pressure fuel pump with OEM unit; inspect fuel filter and lines for contamination; ensure correct fuel quality is used.
Research Basis

Analysis derived from Genesis technical bulletins (2020-2024) and UK DVSA failure statistics (2022-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about GENESIS G6EA

Find answers to most commonly asked questions about GENESIS G6EA.

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.

Official Documentation

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Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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VCA Certification Portal

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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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