The Kia G6BV is a 1,998 cc, inline‑four turbocharged petrol engine produced between 2016 and 2020. It features gasoline direct injection (GDI), dual continuously variable valve timing (CVVT), and a single twin-scroll turbocharger. In standard form, it delivered 177 kW (241 PS) and 353 Nm of torque, enabling strong acceleration and overtaking capability.
Fitted primarily to the Stinger GT and Optima GT, the G6BV was engineered for spirited performance and grand touring refinement. Emissions compliance was achieved through a close-coupled catalytic converter and engine management strategies, meeting Euro 6 standards across its production run.
One documented concern is carbon buildup on intake valves, a common trait of GDI engines, which can lead to rough idle or reduced efficiency over time. Kia addressed this through updated engine calibration and service procedures, as outlined in Technical Service Bulletin TSB-19-FL-003.
Production years 2016–2020 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
The Kia G6BV is a 1,998 cc inline‑four turbocharged petrol engine engineered for performance sedans (2016-2020). It combines gasoline direct injection with dual CVVT and a twin-scroll turbocharger to deliver strong, linear power and responsive torque. Designed to meet Euro 6 standards, it balances high performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged (Twin-Scroll) | |
| Bore × stroke | 83.0 mm × 92.0 mm | |
| Power output | 177 kW (241 PS) @ 6,000 rpm | |
| Torque | 353 Nm @ 1,350–4,000 rpm | |
| Fuel system | Gasoline Direct Injection (GDI) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single twin-scroll turbo (Mitsubishi Heavy Industries) | |
| Timing system | Chain-driven | |
| Oil type | Kia Genuine 5W‑30 (API SP) | |
| Dry weight | 165 kg |
The twin-scroll turbo provides immediate throttle response and strong mid-range pull, ideal for highway merging and overtaking. Due to its GDI system, periodic induction system cleaning (every 60,000–80,000 km) is recommended to mitigate intake valve carbon buildup and maintain optimal performance. Kia Genuine 5W-30 oil is critical for protecting turbo bearings and variable valve timing components. The engine's performance orientation means fuel economy is moderate; expect higher consumption under spirited driving. Adherence to the factory maintenance schedule is essential for long-term reliability.
Oil Specs: Requires Kia Genuine 5W-30 meeting API SP specification (Kia Owner's Manual).
Emissions: Euro 6 certification applies to all production years (2016–2020) (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output figures are for the standard tune (Kia TIS Doc. G6BV-ENG-001).
Kia Technical Information System (TIS): Docs G6BV-ENG-001, G6BV-TURBO-005, G6BV-FUEL-010
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Kia G6BV was used across Kia's performance-oriented platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Stinger for handling loads-and no significant facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the timing cover (Kia TIS G6BV-ENG-001). The 8th digit of the VIN is 'G' for vehicles equipped with the G6BV engine. Visually, the engine is identifiable by its red valve cover and prominent twin-scroll turbocharger inlet on the front. Differentiation from the Theta II 2.0T: The G6BV uses a different intake manifold and turbocharger assembly. Service parts are generally consistent across model years, but ECU software versions may vary.
The G6BV's primary reliability consideration is intake valve carbon buildup, inherent to its GDI design. While not a catastrophic failure, it can lead to drivability issues if neglected. Kia's TSB-19-FL-003 provides a specific cleaning procedure, and adherence to recommended service intervals is the best preventative measure.
Analysis derived from Kia technical bulletins (2017-2020) and UK DVSA failure statistics (2018-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about KIA G6BV.
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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