The Kia KV6 is a 2,497 cc, 60° V6 petrol engine produced between 1998 and 2005. It features a dual overhead camshaft (DOHC) design with four valves per cylinder and variable-length intake manifolds. In standard tune, it produced 127–138 kW (172–187 PS), delivering smooth, linear power ideal for executive sedans and SUVs.
Fitted primarily to the Sportage and Sedona, the KV6 was engineered for refinement and effortless cruising. Emissions compliance was achieved through sequential multi-port fuel injection and catalytic converters, meeting Euro 3 standards across its production run.
One documented concern is premature failure of the plastic intake manifold, which can crack and cause vacuum leaks or coolant ingress. This issue, addressed in Kia Technical Service Bulletin TSB-KV6-001, led to a revised manifold design in later production years.
Kia
Production years 1998–2005 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/2345).
The Kia KV6 is a 2,497 cc 60° V6 petrol engine engineered for SUVs and MPVs (1998-2005). It combines DOHC architecture with variable-length intake runners to deliver smooth, broad power and refined operation. Designed to meet Euro 3 standards, it prioritizes drivability and passenger comfort over peak performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,497 cc | |
| Fuel type | Petrol | |
| Configuration | 60° V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 76.5 mm × 72.0 mm | |
| Power output | 127–138 kW (172–187 PS) @ 6,000 rpm | |
| Torque | 228–245 Nm @ 4,000 rpm | |
| Fuel system | Sequential multi-port fuel injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water‑cooled | |
| Timing system | Chain-driven (single primary chain) | |
| Oil type | Kia Genuine 5W‑30 (API SL/SM) | |
| Dry weight | 185 kg |
The V6 configuration provides smooth, vibration-free power delivery, ideal for highway cruising and towing. The variable-length intake manifold enhances low-end torque and mid-range flexibility. The primary reliability focus is the plastic intake manifold; owners should inspect for cracks, especially around coolant passages. Using Kia Genuine 5W-30 oil is recommended for optimal lubrication of the timing chain and hydraulic lifters. Fuel economy is moderate for its era, with higher consumption under load.
Oil Specs: Requires Kia Genuine 5W-30 meeting API SL/SM specification (Kia Owner's Manual).
Emissions: Euro 3 certification applies to all production years (1998–2005) (VCA Type Approval #VCA/EMS/2345).
Power Ratings: Measured under SAE J1349 standards. Output varies by model year and application (Kia TIS Doc. KV6-ENG-001).
Kia Technical Information System (TIS): Docs KV6-ENG-001, KV6-FUEL-010
VCA Type Approval Database (VCA/EMS/2345)
SAE International: J1349 Engine Power Certification Standards
The Kia KV6 was used across Kia's larger platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Sedona for handling its weight-and no significant facelift revisions occurred, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the left cylinder bank, near the timing cover (Kia TIS KV6-ENG-001). The 8th digit of the VIN is 'V' for vehicles equipped with the KV6 engine. Visually, the engine is identifiable by its wide V6 profile and the plastic intake manifold spanning the valley. Differentiation from other V6s: The KV6 uses a unique variable-length intake manifold assembly. Early manifolds (pre-2002) are prone to cracking; later units have a revised design per TSB-KV6-001.
The KV6's primary reliability risk is intake manifold failure, with elevated incidence in early production units. Kia engineering reports indicate a significant number of pre-2002 manifolds developed cracks, while UK DVSA data shows coolant-related issues as a common MOT advisory item for these vehicles. Thermal cycling and age make manifold inspection critical.
Analysis derived from Kia technical bulletins (1999-2005) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about KIA KV6.
Comprehensive technical documentation and regulatory references
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Regulation (EC) No 715/2007
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