The Hyundai G8BE is a 2,497 cc, inline‑four turbocharged petrol engine produced from 2020 onward. It features dual overhead camshafts (DOHC), 16 valves, and direct fuel injection with variable valve timing on both intake and exhaust camshafts. In standard form it delivers 210–230 kW (286–313 PS) with torque between 422–430 Nm, enabling strong performance in mid‑size and performance‑oriented applications.
Fitted to models such as the Sonata N Line (DN8) and i40 N Line (VF), including the 2.5 T-GDi N Line variants, the G8BE was engineered for spirited driving, refinement, and responsive turbocharged power delivery. Emissions compliance is achieved through gasoline particulate filtration (GPF), exhaust gas recirculation (EGR), and precise engine management, meeting Euro 6d standards across European markets.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the intake camshaft, particularly under sustained high-load conditions. This issue, highlighted in Hyundai Technical Service Bulletin TSB‑21‑EM‑003, is attributed to metallurgical inconsistencies in early‑production camshafts. From late 2022 onward, Hyundai implemented revised camshaft hardening processes and updated HPFP mounting hardware to improve durability.
Production years 2020–present meet Euro 6d standards across all markets (VCA UK Type Approval #VCA/EMS/8471).
The Hyundai G8BE is a 2,497 cc inline‑four turbocharged petrol engine engineered for performance sedans and sporty variants (2020–present). It combines DOHC architecture with direct injection and dual continuously variable valve timing to deliver responsive power and strong mid‑range torque. Designed to meet Euro 6d emissions standards, it integrates a gasoline particulate filter and cooled EGR for regulatory compliance without sacrificing drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,497 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 102.0 mm | |
| Power output | 210–230 kW (286–313 PS) @ 5,800 rpm | |
| Torque | 422–430 Nm @ 1,650–4,000 rpm | |
| Fuel system | Direct injection (GDI), 350 bar | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single twin-scroll turbo (Mitsubishi TD05H) | |
| Timing system | Chain with dual CVVT phasers | |
| Oil type | Hyundai SP 5W‑30 or ACEA C5 | |
| Dry weight | 168 kg |
The twin-scroll turbo provides immediate throttle response and strong mid-range pull but requires consistent oil changes every 10,000 km using low-SAPS 5W‑30 oil to protect the turbo bearings and camshaft HPFP drive lobe. Engines built before late 2022 are susceptible to HPFP cam lobe wear—inspect during major services per TSB‑21‑EM‑003. The non-interference design reduces catastrophic failure risk if timing components degrade, though chain tensioners should be inspected at 180,000 km. Use only EN 228-compliant ultra-low-sulfur petrol to preserve GPF longevity and prevent carbon buildup on injectors.
Oil Specs: Requires Hyundai SP 5W‑30 or ACEA C5 (Hyundai Owner Manual 2021). Low-SAPS formulation essential for GPF compatibility.
Emissions: Euro 6d certification applies to all 2020–present G8BE units (VCA Type Approval #VCA/EMS/8471). No earlier emissions variants exist.
Power Ratings: Measured under SAE J1349 standards. Output varies by model calibration (Hyundai PT‑2023).
Hyundai Technical Information System (TIS): Docs EM‑G8BE‑01, EM‑G8BE‑02, TSB‑21‑EM‑003
VCA Type Approval Database (VCA/EMS/8471)
SAE International: J1349 Engine Power Certification Standards
The Hyundai G8BE was used across Hyundai's DN8/VF platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts in the Sonata N Line and modified exhaust manifolds in the i40 N Line—and from late 2022 the updated camshaft and HPFP hardware created minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the left side of the block near the cylinder head flange (Hyundai TIS EM‑G8BE‑04). The 7th VIN digit is '8' for G8BE-equipped vehicles. Pre-late‑2022 engines use standard camshafts with HPFP drive lobe prone to wear; post-late‑2022 units feature revised camshafts (Part No. 21110‑G8200) with enhanced surface hardening. Critical differentiation from Theta III (G4KN): G8BE uses direct injection only, larger displacement, and unique turbo layout. HPFP and camshafts are not interchangeable—verify production date before replacement (TSB‑21‑EM‑003).
The G8BE's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear on pre-late‑2022 builds, with elevated incidence in sustained high-load or track-use scenarios. Hyundai internal field data from 2023 indicated HPFP-related cam failures in a measurable subset of engines before 80,000 km, while UK DVSA MOT records show low mechanical failure rates overall due to the engine’s non-interference design. Extended oil intervals or incorrect viscosity accelerate wear, making oil specification and change frequency critical.
Analysis derived from Hyundai technical bulletins (2021–2023) and UK DVSA failure statistics (2021–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HYUNDAI G8BE.
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