The Mazda P5Z7 is a 1,498 cc, inline‑four petrol engine produced between 2003 and 2007. It features a dual overhead camshaft (DOHC) valvetrain and sequential multi‑point fuel injection, delivering a balance of efficiency and responsive performance for its vehicle class. Output is rated at approximately 74 kW (100 PS) and 130 Nm of torque, providing adequate power for urban and highway driving.
Fitted primarily to the second — generation Mazda2 (DY) and related Ford mode…
Mazda
Production years 2003–2007 meet Euro 3 standards for relevant markets to specific VIN ranges).
The Mazda P5Z7 is a 1,498 cc inline‑four petrol engine engineered for compact hatchbacks (2003-2007). It combines DOHC architecture with multi‑point fuel injection to deliver responsive, economical performance. Designed to meet Euro 3 emissions standards, it balances everyday drivability with low running costs.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,498 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 78.0 mm × 78.4 mm | |
Power output | 74 kW (100 PS) @ 6,000 rpm | |
Torque | 130 Nm @ 4,000 rpm | |
Fuel system | Sequential multi-point fuel injection (SFI) | |
Emissions standard | Euro 3 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification |
The Mazda P5Z7 was used across Mazda's compact platforms with transverse mounting. This engine received platform-specific adaptations and was succeeded by the Z-series. All adaptations are documented in OEM technical bulletins.
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The P5Z7's primary reliability focus is on age-related wear of ignition components and potential for carbon buildup. While generally robust, lack of maintenance can lead to common failures. Adherence to service schedules is critical for long-term reliability.
Analysis derived from Mazda technical bulletins and workshop manuals. 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
Generally, yes. The P5Z7 is a simple and robust design. Its main long-term concerns are ignition coil failures and throttle body carbon buildup, both of which are manageable with regular maintenance. Timely oil changes and addressing minor issues promptly contribute significantly to its longevity.
The most frequent issues are failing ignition coil packs causing misfires, carbon buildup in the throttle body leading to idle problems, oil leaks from the valve cover gasket, and faulty coolant temperature sensors. These are typical wear-and-tear items for an engine of this age.
The P5Z7 engine was primarily used in the second-generation Mazda2 (DY chassis, 2003-2007). It was also used in the fifth-generation Ford Fiesta (Mk5) during the same period, where it was known as the 1.5L Duratec petrol engine.
Significant power gains are limited due to the naturally aspirated design. Basic modifications like a cold air intake or performance exhaust might offer minor improvements. ECU remapping potential is very limited on these older, non-drive-by-wire engines.
Fuel economy is good for its era. Expect combined figures around 6.5-7.5 L/100km (43-38 mpg UK), depending on the specific vehicle, transmission (manual/automatic), and driving conditions. Highway driving will yield better results than city driving.
No, the Mazda P5Z7 is generally considered a non-interference (or 'free-wheeling') engine. If the timing chain were to fail, the pistons and valves would not collide, preventing catastrophic internal damage. However, the engine will still stop running.
The recommended oil is typically SAE 5W-30 with an API SG/SH rating or equivalent. Always consult your vehicle's owner's manual for the precise specification, as requirements can vary slightly by model year and market. Using the correct oil is vital for engine protection.
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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