The Hyundai G4NA is a 1,999 cc, inline‑four naturally aspirated petrol engine produced between 2010 and 2018. It features a dual overhead camshaft (DOHC) 16‑valve layout with sequential multi‑point fuel injection (SFI), delivering 110–118 kW (150–160 PS) and 192–196 Nm of torque. Its aluminium block and head reduce weight while maintaining thermal efficiency for responsive everyday performance.
Fitted to models such as the i40 (VF), Sonata (YF), and Santa Fe (DM), th…
All production years (2010–2018) meet Euro 5 emissions standards .
The Hyundai G4NA is a 1,999 cc inline‑four naturally aspirated petrol engine engineered for midsize and large sedans/SUVs (2010–2018). It combines DOHC architecture with sequential multi‑point fuel injection to deliver linear power and consistent torque. Designed to meet Euro 5 emissions standards, it balances refinement, fuel economy, and serviceability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,999 cc | |
Fuel type | Petrol (Unleaded) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 86.0 mm × 86.0 mm | |
Power output | 110–118 kW (150–160 PS) @ 6,200 rpm | |
Torque | 192–196 Nm @ 4,000 rpm | |
Fuel system | Sequential multi‑point injection (SFI) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain (maintenance‑free design) | |
Oil type | Hyundai SP 5W‑30 (API SN/CF) | |
Dry weight | 132 kg |
The Hyundai G4NA was used across Hyundai's VF, YF, and DM platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised intake manifolds in the i40 VF, stiffer engine mounts in the Sonata YF, and ECU calibration updates in the Santa Fe DM—creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 G4NA is generally reliable with proper maintenance. Its main concern is carbon buildup on intake valves due to port injection, which can cause rough idle over time. Regular intake cleaning (every 60,000–80,000 km) and updated ECU software per TSB‑12‑EM‑033 mitigate this. Otherwise, the engine is robust and durable.
Top issues include carbon buildup on intake valves, coolant leaks from the integrated water pump, oil seepage from the timing cover, and throttle body contamination. These are documented in Hyundai service bulletins, particularly TSB‑12‑EM‑033 for intake and idle concerns.
The G4NA powered the i40 (VF, 2011–2018), Sonata (YF, 2010–2014), and Santa Fe (DM, 2012–2018) in 2.0L petrol variants. It was not licensed to other manufacturers. All applications meet Euro 5 emissions standards.
Limited tuning potential exists. The naturally aspirated design and 10.5:1 compression ratio allow modest gains (~8–12 kW) via intake/exhaust upgrades and ECU remap. Forced induction is not recommended due to stock internals and lack of factory turbo provisions.
In a Sonata 2.0 (118 kW), expect ~9.2 L/100km (city), ~6.0 L/100km (highway), or ~36 mpg UK combined. Real-world mixed driving typically yields 34–38 mpg UK. Economy is competitive for a 2.0L petrol midsize sedan of this era.
Yes. The G4NA is an interference engine. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is designed as maintenance-free and rarely fails if oil is maintained.
Hyundai specifies 5W‑30 synthetic oil meeting Hyundai SP or API SN/CF standards. This viscosity ensures proper lubrication and supports emissions system longevity. Change every 10,000 km or 12 months.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.