The Hyundai G6BE is a 2,656 cc, V6 naturally aspirated petrol engine produced between 2005 and 2010. It features double overhead camshafts (DOHC), 24 valves, and sequential multi‑point fuel injection. In standard form it delivered 125–132 kW (170–180 PS) with torque between 245–255 Nm, providing smooth power delivery and refined highway cruising.
Fitted to models such as the Sonata (NF), Grandeur (TG), and Azera (TG), the G6BE was engineered for comfort-oriented midsize and executive sedans, emphasizing low vibration, quiet operation, and linear throttle response. Emissions compliance was achieved through a closed‑loop fuel system, three‑way catalytic converter, and electronic throttle control, meeting Euro 4 standards across all production years.
One documented concern is oil sludge accumulation in engines subjected to frequent short trips or extended oil change intervals, referenced in Hyundai Technical Service Bulletin TSB‑ENG‑057. This issue stems from inadequate crankcase ventilation under low-temperature operating conditions. From 2007 onward, Hyundai revised the PCV system and updated oil specifications to mitigate sludge formation.
Hyundai
All production years (2005–2010) meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/6321).
The Hyundai G6BE is a 2,656 cc V6 naturally aspirated petrol engine engineered for midsize and executive sedans (2005–2010). It combines DOHC architecture with sequential multi‑point fuel injection to deliver smooth, vibration-free power and refined cruising. Designed to meet Euro 4 emissions standards, it balances comfort-focused drivability with serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,656 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 86.7 mm × 75.0 mm | |
| Power output | 125–132 kW (170–180 PS) @ 6,000 rpm | |
| Torque | 245–255 Nm @ 4,500 rpm | |
| Fuel system | Sequential multi‑point fuel injection (MPFI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 10.4:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain (maintenance‑free design) | |
| Oil type | Hyundai SP 5W‑30 (API SL/ILSAC GF‑3) | |
| Dry weight | 165 kg |
The V6 layout provides smooth, balanced power ideal for highway cruising but is susceptible to oil sludge in urban or short-trip use due to low crankcase temperatures. Hyundai SP 5W‑30 oil (API SL/ILSAC GF‑3) is essential, and oil changes must occur every 7,500–10,000 km to prevent deposit accumulation. The engine uses a maintenance-free timing chain, but sludge can restrict oil galleries, starving camshaft bearings. Fuel must meet EN 228 standards; ethanol blends above E5 may degrade injector seals over time. Revised PCV systems from 2007 onward reduce sludge risk per TSB‑ENG‑057.
Oil Specs: Requires Hyundai SP 5W‑30 (API SL/ILSAC GF‑3) (Hyundai Owner’s Manual NF/TG). ACEA A3/B4 oils are not recommended.
Emissions: Euro 4 certification applies to all G6BE production years (2005–2010) (VCA Type Approval #VCA/EMS/6321). No Euro 5 variants exist.
Power Ratings: Measured under SAE J1349 standards. Output varies slightly by model calibration (Hyundai PT‑2009).
Hyundai Technical Information System (TIS): Docs ENG‑G6BE‑001, ENG‑G6BE‑002, TSB‑ENG‑057
VCA Type Approval Database (VCA/EMS/6321)
SAE International: J1349 Engine Power Certification Standards
The Hyundai G6BE was used across Hyundai's NF/TG platforms with longitudinal mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Grandeur TG and updated intake manifolds in the Sonata NF—and from 2007 the facelifted Azera TG adopted an improved PCV system per TSB‑ENG‑057, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the left cylinder bank near the timing cover (Hyundai TIS ENG‑G6BE‑005). The 7th VIN digit for G6BE-equipped vehicles is typically 'B'. All units feature silver cam covers; pre-2007 engines have a single-stage PCV valve, while post-2007 units feature a dual-stage PCV system per TSB‑ENG‑057. Critical differentiation from G6BA (3.3L V6): G6BE has smaller displacement (2,656 cc vs. 3,342 cc) and lower power output. Service parts require verification—PCV hoses and oil pans before 01/2007 are not interchangeable with later units due to ventilation redesign (Hyundai TSB‑ENG‑057).
The G6BE's primary reliability risk is oil sludge formation in engines subjected to frequent short trips or infrequent oil changes. Hyundai internal service data from 2008 indicated measurable sludge accumulation in engines exceeding 60,000 km without strict maintenance, while UK DVSA MOT records show low mechanical failure rates overall. Extended oil intervals and cold climate operation increase sludge risk, making oil quality and change frequency critical.
Analysis derived from Hyundai technical bulletins (2006–2010) and UK DVSA failure statistics (2010–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HYUNDAI G6BE.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with HYUNDAI or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
HYUNDAI 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.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialHYUNDAI documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
