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 (…
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 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.
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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.
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The G8BE is robust in performance applications, especially post-late-2022 models with updated camshafts. Early engines (2020–late 2022) may develop HPFP cam lobe wear under aggressive use if oil changes are delayed. With proper maintenance using 5W‑30 low-SAPS oil and 10,000 km intervals, many examples are expected to exceed 200,000 km without major issues.
Top issues include HPFP cam lobe wear (pre-late-2022), GPF clogging from short trips, turbo wastegate rattle, and intake valve carbon buildup due to pure GDI design. These are documented in Hyundai TSBs and service manuals.
The G8BE powers the Sonata N Line (DN8, 2020–present) and i40 N Line (VF, 2021–2023). It was developed exclusively for Hyundai’s N Line performance variants and is not used in Kia or non-performance models.
Yes. The G8BE responds well to ECU remapping (+20–30 kW) and supporting mods (intake, exhaust, intercooler). Stock internals can handle up to ~350 PS reliably. However, aggressive tuning increases HPFP and cam lobe stress—use updated hardware if tuning early engines.
In a 2021 Sonata N Line, expect ~11.8 L/100km city and ~7.6 L/100km highway, or 24–31 mpg UK combined. Real-world mixed driving typically yields 26–29 mpg UK, with significant variation based on driving style and conditions.
No. The G8BE is a non-interference engine. If the timing chain fails, pistons will not contact valves, minimizing catastrophic damage risk—though repair is still required.
Hyundai specifies SP 5W‑30 or ACEA C5 5W‑30 low-SAPS synthetic oil. This viscosity is critical for turbo and GPF protection. Change every 10,000 km to prevent sludge and cam wear, especially in pre-late-2022 engines.
Comprehensive technical documentation and regulatory references
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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.
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