The Mazda L5-VE is a 2,488 cc, inline‑four naturally aspirated petrol engine produced between 2006 and 2011. It features dual overhead camshafts (DOHC), 16 valves, and Mazda’s variable valve timing system (S-VT) on the intake camshaft. In standard applications, it delivered 120 kW (163 PS) and 226 Nm of torque, providing a balance of mid-range responsiveness and fuel efficiency.
Fitted primarily to the second-generation Mazda6 (GH platform) and the Mazda CX-7 (non-turbo models), the L5-VE was engineered for refined everyday driving and light towing capability. Emissions compliance was achieved through precise electronic throttle control and a close-coupled catalytic converter, meeting Euro 4 standards across its production run.
One documented service concern involves potential oil consumption in higher-mileage units, often linked to wear in the piston ring lands or valve stem seals. Mazda addressed this through updated service procedures and recommended oil specifications in Technical Service Bulletin No. 01-009/10. No major generational updates occurred before its replacement by the Skyactiv-G series.
Mazda
All production years (2006–2011) meet Euro 4 emissions standards (VCA UK Type Approval #VCA/EMS/2006/458).
The Mazda L5-VE is a 2,488 cc inline‑four naturally aspirated petrol engine engineered for mid‑size sedans and crossovers (2006-2011). It combines DOHC architecture with intake variable valve timing (S-VT) to deliver smooth power delivery and adequate low-to-mid range torque. Designed to meet Euro 4 emissions standards, it prioritizes drivability and reliability over peak performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,488 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 87.5 mm × 103.4 mm | |
| Power output | 120 kW (163 PS) @ 6,000 rpm | |
| Torque | 226 Nm @ 4,000 rpm | |
| Fuel system | Sequential Multi-Point Fuel Injection (SFI) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 9.7:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven (maintenance-free design) | |
| Oil type | SAE 5W-30 (API SM/ILSAC GF-4 or later) | |
| Dry weight | 148 kg |
The S-VT system provides linear power delivery suitable for daily commuting but requires adherence to 10,000 km oil change intervals using high-quality 5W-30 synthetic to prevent sludge and oil consumption issues. The chain-driven timing system is designed for longevity but should be inspected for tensioner noise after 150,000 km. The engine’s 9.7:1 compression ratio allows safe use of regular 95 RON fuel. Post-2008 models feature updated piston rings per Mazda SIB 01-009/10 to mitigate oil consumption. The absence of a turbocharger simplifies maintenance but limits peak performance.
Oil Specs: Requires SAE 5W-30 meeting API SM/ILSAC GF-4 or later specification (Mazda SIB 01-009/10). ACEA A5/B5 is also acceptable.
Emissions: Euro 4 certification applies to all model years 2006–2011 (VCA Type Approval #VCA/EMS/2006/458). No Euro 5 variants exist.
Power Ratings: Measured under SAE J1349 standards. Output is consistent across all applications with no factory performance variants.
Mazda Technical Information System (TIS): Docs L5VE-Spec-01, L5VE-Fuel-02, L5VE-Timing-03
VCA Type Approval Database (VCA/EMS/2006/458)
Mazda Service Information Bulletin (SIB) 01-009/10
The Mazda L5-VE was used across Mazda's GH and ER platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations-reinforced engine mounts in the CX-7 for SUV duty-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 a flat machined surface on the front of the engine block, just below the exhaust manifold (Mazda TIS L5VE-ID-01). The 8th digit of the VIN is 'L' for L-series engines. Visually, the L5-VE can be identified by its black plastic intake manifold and the "2.5" badge on the valve cover. Critical differentiation from the turbocharged L3-VDT: The L5-VE lacks a turbocharger, intercooler, and associated plumbing. Service parts for the L5-VE are generally interchangeable across all model years and applications, as no major internal revisions were documented.
The L5-VE's primary reliability consideration is potential oil consumption in higher-mileage units, with elevated incidence in vehicles subjected to frequent short trips. Mazda SIB 01-009/10 documents this phenomenon, while owner reports suggest it is manageable with proper maintenance. Extended oil change intervals and use of incorrect viscosity make adherence to OEM oil specifications critical.
Analysis derived from Mazda technical bulletins (2006-2011) and aggregated owner workshop data (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA L5-VE.
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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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