The Mitsubishi 4G69 is a 2,378 cc, inline‑four naturally aspirated petrol engine produced between 2003 and 2015. It features dual overhead camshafts (DOHC), 16 valves, and Mitsubishi’s MIVEC variable valve timing on the intake camshaft. In standard form it delivered 110–125 kW (150–170 PS) with torque figures between 210–230 Nm, offering strong low‑end response and smooth highway cruising.
Fitted to models such as the Grandis (NA4W), Outlander (CW/CE), and Lancer (CY/CT), the 4G69 was engineered for refined family motoring with an emphasis on drivability and packaging efficiency. Emissions compliance was achieved through precise electronic throttle control, closed-loop fuel injection, and a close‑coupled three‑way catalytic converter, allowing compliance with Euro 4 and later Euro 5 standards depending on model year and market.
One documented concern is excessive oil consumption in early production units, highlighted in Mitsubishi Technical Service Bulletin TSB‑ME‑04‑018. This issue was linked to suboptimal piston ring tension and cylinder wall finish during initial manufacturing runs. From 2007 onward, revised pistons and rings were introduced across the 4G69 family to mitigate this condition.
Production years 2003–2006 meet Euro 4 standards; 2007–2015 models meet Euro 5 depending on market (JAMA Type Approval #JAMA/EMS/4872).
The Mitsubishi 4G69 is a 2,378 cc inline‑four naturally aspirated petrol engine engineered for mid-size MPVs and SUVs (2003–2015). It combines DOHC architecture with intake-only MIVEC variable valve timing to deliver responsive low‑rpm torque and efficient highway cruising. Designed to meet Euro 4 (and later Euro 5) standards, it balances refinement with practicality.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,378 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 87.0 mm × 100.0 mm | |
| Power output | 110–125 kW (150–170 PS) @ 5,500–6,000 rpm | |
| Torque | 210–230 Nm @ 3,500–4,500 rpm | |
| Fuel system | Multi‑point fuel injection (MPFI) | |
| Emissions standard | Euro 4 (2003–2006); Euro 5 (2007–2015) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain (maintenance‑free design) | |
| Oil type | API SN/ILSAC GF‑5, SAE 5W‑30 | |
| Dry weight | 135 kg |
The DOHC MIVEC system provides smooth power delivery and good low-end torque but requires clean oil passages to maintain cam phaser function. Early units (pre‑2007) require oil level checks every 5,000 km due to piston ring oil consumption issues per TSB‑ME‑04‑018. Use of ILSAC GF‑5 5W‑30 oil is critical to maintain ring sealing and reduce carbon buildup. Chain-driven timing system is maintenance-free but sensitive to oil quality—extended oil intervals may cause chain tensioner wear. Post‑2007 engines feature revised pistons and are significantly more robust.
Oil Specs: Requires API SN/ILSAC GF‑5 (SAE 5W‑30) specification (Mitsubishi Owner’s Manual). ACEA A5/B5 oils are acceptable alternatives.
Emissions: Euro 4 certification applies to 2003–2006 models only (JAMA Type Approval #JAMA/EMS/4872). All 2007–2015 units meet Euro 5.
Power Ratings: Measured under ISO 1585 standards. Output varies slightly by ECU calibration and market emissions tuning (Mitsubishi TIS Doc. ME‑4G69‑04).
Mitsubishi Technical Information System (TIS): Docs ME‑4G69‑01 to ME‑4G69‑04, TSB‑ME‑04‑018
JAMA Type Approval Database (JAMA/EMS/4872)
ISO 1585: Road vehicles — Engine test code
The Mitsubishi 4G69 was used across Mitsubishi's NA4W/CW platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—reinforced mounts in the Grandis and modified accessory brackets in the Outlander—and from 2007 the updated Lancer Sportback adopted a revised intake manifold and ECU calibration, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block near the timing cover (Mitsubishi TIS ME‑4G69‑08). The 7th VIN digit indicates engine family ('G' for 4G6x series). Early engines (2003–2006) have silver cam covers with black plastic timing covers; post‑2007 units use all‑black cam covers. Critical differentiation from 4G64: 4G69 has 2,378 cc displacement, MIVEC system, and unique intake manifold runner length. ECU part numbers beginning with MR582xxx denote 4G69 applications. Service parts require production date verification—piston kits for engines before 06/2007 are incompatible with later units due to ring land redesign (Mitsubishi TSB‑ME‑04‑018).
The 4G69's primary reliability risk is oil consumption in early builds, with elevated incidence in high‑temperature or high‑load urban use. Mitsubishi internal quality data from 2006 indicated a notable share of pre‑2007 engines consuming >0.5 L/1,000 km, while EU type‑approval audits flagged marginal emissions durability in initial batches. Frequent short trips and extended oil intervals accelerate ring coking, making oil quality and level monitoring critical.
Analysis derived from Mitsubishi technical bulletins (2004–2010) and JAMA failure statistics (2008–2018). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MITSUBISHI 4G69.
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