The Mazda LFZ2 is a 2,260 cc, inline‑four naturally aspirated petrol engine produced between 2008 and 2013. It features dual overhead camshafts (DOHC), 16 valves, and Mazda's MZR technology for responsive power delivery. In standard form, it produced 118 kW (160 PS) and 213 Nm of torque, offering a balance of performance and refinement for its class.
Fitted primarily to the GH‑generation Mazda3 and first‑gen Mazda CX‑7, the LFZ2 was engineered for smooth, linear power an…
Mazda
Production years 2008–2013 meet Euro 4 standards for all markets .
The Mazda LFZ2 is a 2,260 cc inline‑four naturally aspirated petrol engine engineered for compact and crossover models (2008-2013). It combines DOHC 16-valve architecture with electronic throttle control to deliver smooth, linear power and refined operation. Designed to meet Euro 4 standards, it balances spirited performance with everyday usability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,260 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 87.5 mm × 94.0 mm | |
Power output | 118 kW (160 PS) @ 6,000 rpm | |
Torque | 213 Nm @ 4,000 rpm | |
Fuel system | Sequential Multi-Point Injection (SFI) | |
Emissions standard | Euro 4 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 148 kg |
The Mazda LFZ2 was used across Mazda's GH platform with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the CX-7 to handle the increased weight-and no significant facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
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The LFZ2's primary reliability risk is carbon buildup on intake valves, a common trait in port-injected engines of its generation. Mazda TSB 08-005-12 notes this can lead to drivability issues if neglected, while general owner reports indicate valve cover gasket leaks are a frequent age-related concern. Regular induction cleaning and adherence to oil change intervals are critical for long-term health.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The LFZ2 is generally considered a robust and reliable engine when properly maintained. Its main long-term concerns are carbon buildup on valves and potential valve cover gasket leaks. Addressing these with regular induction cleaning and timely gasket replacement ensures excellent longevity. The timing chain is designed to last the engine's life.
The most frequent issues are carbon buildup on intake valves (causing rough idle), valve cover gasket leaks (leading to oil consumption), VVT actuator rattle or failure, and ignition coil failure. These are well-documented in Mazda service bulletins and owner forums.
The LFZ2 2.3L petrol engine was used in the second-generation Mazda3 (GH chassis, 2008-2013) and the first-generation Mazda CX-7 (ER chassis, 2008-2012). It was the standard petrol engine for these models in many markets during those years.
Yes, but gains are modest due to its naturally aspirated design. Common modifications include a cold air intake, performance exhaust, and ECU remap, which can yield 10-15 kW. Significant power increases require forced induction, which is complex and costly. Most tuning focuses on improving throttle response.
Fuel economy is moderate for its size. Expect around 10.5 L/100km in the city and 7.0 L/100km on the highway for a Mazda3, translating to roughly 27 mpg (UK) combined. The heavier CX-7 will consume slightly more fuel. Real-world figures depend heavily on driving style.
Yes. The LFZ2 is an interference engine. If the timing chain were to fail (which is rare), the pistons would collide with the open valves, causing catastrophic internal engine damage. This underscores the importance of using the correct oil to ensure chain lubrication.
Mazda specifies SAE 5W-30 engine oil meeting API SM or ILSAC GF-4 standards. Using a high-quality synthetic or semi-synthetic oil is recommended, especially for extended drain intervals or severe driving conditions, to protect the VVT system and timing chain.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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