The Genesis G4ND is a 2,497 cc, inline‑four turbocharged petrol engine introduced in 2020. It features gasoline direct injection (GDi), dual overhead camshafts (DOHC), and a single twin — scroll turbocharger. This powertrain delivers a responsive and efficient performance, producing 224 kW (304 PS) and 422 Nm of torque.
Fitted primarily to the GV70 SUV and G70 sedan, the G4ND was engineered for drivers seeking a balance of sporty acceleration, daily drivability, and pr…
All production years (2020–Present) meet Euro 6d emissions standards .
The Genesis G4ND is a 2,497 cc inline‑four turbocharged petrol engine engineered for luxury SUVs and sedans (2020–Present). It combines gasoline direct injection with a twin-scroll turbocharger to deliver strong, linear power and responsive acceleration. Designed to meet Euro 6d standards, it balances spirited performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,497 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 88.5 mm × 101.6 mm | |
Power output | 224 kW (304 PS) | |
Torque | 422 Nm @ 1,400–3,600 rpm | |
Fuel system | Gasoline Direct Injection (GDi), High-Pressure Fuel Pump | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Twin-scroll, water-cooled (Honeywell) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 168 kg |
The Genesis G4ND was developed for Genesis's sporty G70 and GV70 platforms with longitudinal mounting. This engine features platform-specific ECU tuning for the GV70's SUV dynamics and the G70's sedan handling. All adaptations are documented in OEM technical bulletins.
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The G4ND's primary documented concern is potential premature wear of the high-pressure fuel pump (HPFP) drive lobe on the camshaft, with elevated incidence in vehicles using non-Top Tier fuel. Genesis TSB-20-12-003 provides a diagnostic and repair procedure, while aggregated owner data suggests ignition coil longevity can be variable under high-load conditions. Strict adherence to fuel and oil specifications is critical for long-term reliability.
Analysis derived from Genesis technical bulletins (2020-2024) and aggregated owner-reported data (2020-2024). 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 G4ND is generally robust, with its main documented issue being HPFP cam lobe wear in early production, addressed by a service bulletin. With strict adherence to using Top Tier fuel and the specified 5W-30 oil, along with regular maintenance, it is expected to provide excellent long-term reliability.
The most frequently documented issues are potential HPFP drive lobe wear (addressed by TSB-20-12-003), ignition coil failures under hard use, and typical direct-injection carbon buildup on intake valves. Coolant leaks from the thermostat housing have also been reported.
The G4ND 2.5L turbocharged inline-four is used in the Genesis G70 sports sedan (IK chassis) and the Genesis GV70 compact luxury SUV (JK chassis), specifically in their '2.5T' trim levels from the 2020 model year onwards.
Aftermarket ECU tuning is common on the G4ND platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are approximately 9.5-10.5 L/100km (27-30 mpg UK) depending on the model (G70/GV70) and drivetrain. Real-world mixed driving typically yields 11-14 L/100km (20-26 mpg UK), with highway driving being considerably more efficient.
Yes. Like virtually all modern DOHC engines, the G4ND is an interference design. A failure of the timing chain could result in catastrophic damage as the pistons would collide with the open valves. The chain is designed to last the engine's lifetime with proper oil maintenance.
Genesis mandates the use of Genesis Genuine Oil 5W-30 meeting API SP (or higher) specifications. Using the correct low-viscosity, high-quality synthetic oil is essential for protecting the turbocharger, timing chain, and managing the engine's operating temperatures.
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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