The Hyundai G4CS is a 1,594 cc, inline‑four naturally aspirated petrol engine produced between 2005 and 2010. It features a 16‑valve DOHC layout, sequential multi‑point fuel injection (SFI), and a cast‑iron block with aluminum head. In standard form it delivered 81–85 kW (110–115 PS) and 144–147 Nm of torque, engineered for entry‑level reliability and urban drivability.
Fitted to models such as the Hyundai Getz (TB), Accent (MC), and Lavita (FC), the G4CS was engineere…
All production years 2005–2010 meet Euro 4 standards .
The Hyundai G4CS is a 1,594 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and MPVs (2005–2010). It combines sequential multi‑point injection with a durable cast‑iron block to deliver predictable performance and low running costs. Designed to meet Euro 4 emissions standards, it prioritizes simplicity and serviceability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,594 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 76.5 mm × 87.0 mm | |
Power output | 81–85 kW (110–115 PS) | |
Torque | 144–147 Nm @ 4,500 rpm | |
Fuel system | Sequential multi‑point injection (SFI) | |
Emissions standard | Euro 4 | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain (front‑mounted) | |
Oil type | Hyundai SP II (API SL/CF, SAE 10W‑30 or 10W‑40) | |
Dry weight | 112 kg |
The Hyundai G4CS was used across Hyundai's TB, MC, and FC platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Getz TB and updated intake manifolds in the Accent MC—and from 2007 the Lavita FC facelift introduced updated HLA components, 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 G4CS is mechanically simple and generally robust, but early models (2005–2006) are prone to HLA wear if oil changes are delayed or incorrect viscosity is used. Post‑2007 revisions improved durability. With regular servicing and correct 10W‑30/40 oil, well-maintained examples can exceed 200,000 km reliably.
Top issues include hydraulic lash adjuster wear, catalytic converter degradation from misfires, timing chain tensioner rattle, and oil leaks from valve covers. These are documented in Hyundai service bulletins TSB‑06‑G4CS‑01 and related TIS updates.
The G4CS 1.6L inline‑4 petrol was used in the Getz (TB, 2005–2010), Accent (MC, 2005–2010), and Lavita (FC, 2005–2010). It was not licensed to other manufacturers and is exclusive to Hyundai’s entry‑level lineup of that era.
Limited potential. The naturally aspirated design and modest compression ratio restrict gains. Mild tuning (intake/exhaust, ECU remap) may yield +5–8 kW, but significant power increases require forced induction, which is uncommon due to cost and complexity relative to the vehicle’s value.
In a Getz 1.6, expect ~8.2 L/100km (city) and ~5.8 L/100km (highway), or ~34 mpg UK combined. Real-world mixed driving typically yields 32–38 mpg UK, depending on load, terrain, and driving style.
Yes. The G4CS is an interference engine. Timing chain failure—though rare due to robust front-mounted design—could cause piston-to-valve contact and catastrophic damage. However, chain issues are not a common failure mode on this engine.
Hyundai specifies SAE 10W‑30 or 10W‑40 oil meeting API SL/CF or ACEA A3/B3 standards. Oil changes every 10,000 km (or 12 months) are critical for HLA and engine longevity.
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.