The Mazda P5Z2 is a 1,496 cc, inline‑four naturally aspirated petrol engine produced between 2014 and 2018. It features Mazda's Skyactiv‑G technology, including a high 13.0:1 compression ratio, 4‑2‑1 exhaust manifold, and direct injection, delivering 88 kW (120 PS) and 148 Nm of torque. Its dual variable valve timing (Dual S‑VVT) optimises efficiency across the rev range.
Fitted primarily to the third‑generation Mazda2 (DJ) and select Mazda Demio models, the P5Z2 was…
Mazda
Production years 2014–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Mazda P5Z2 is a 1,496 cc inline‑four naturally aspirated petrol engine engineered for subcompact hatchbacks (2014-2018). It combines Skyactiv‑G direct injection with Dual S‑VVT to deliver responsive low‑end torque and high fuel efficiency. Designed to meet Euro 5 standards, it balances spirited performance with low emissions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,496 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 74.5 mm × 85.8 mm | |
Power output | 88 kW (120 PS) @ 6,000 rpm | |
Torque | 148 Nm @ 3,500 rpm | |
Fuel system | Direct injection (no port injection) | |
Emissions standard | Euro 5 | |
Compression ratio | 13.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain‑driven | |
Oil type | Mazda Moly 5W‑30 (API SN/ILSAC GF-5) | |
Dry weight | 102 kg |
The Mazda P5Z2 was used across Mazda's DJ platform with transverse mounting and no licensed status. This engine received no major platform-specific adaptations and was used consistently until its discontinuation, creating broad interchangeability within its production run. All specifications are documented in original factory service manuals.
The P5Z2's primary reliability risk is intake valve carbon buildup, with elevated incidence in short-trip urban use. Mazda's internal service data indicates a significant portion of vehicles required cleaning before 80,000 km, while owner surveys consistently cite rough idle as a common complaint. Stop-start driving and low-quality fuel make preventative maintenance critical.
Analysis derived from Mazda technical bulletins (2014-2018) and owner club failure statistics (compiled 2018-2024). Repair procedures should follow manufacturer guidelines.
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The P5Z2 is generally very reliable with a robust design. Its main long-term concern is carbon buildup on intake valves, which is manageable with preventative maintenance. With regular oil changes using the correct specification and periodic intake cleaning, the engine can easily exceed 200,000 km without major issues.
The most frequent issues are carbon buildup on intake valves causing running problems, occasional S-VVT actuator rattle on cold start, and potential failure of the high-pressure fuel pump. Engine mount wear is also common as the vehicle ages. These are well-documented in Mazda service information.
The P5Z2 engine was used exclusively in the third-generation Mazda2 (DJ chassis code) and its Japanese-market twin, the Mazda Demio, from 2014 to 2018. It was not used in the Mazda3 or any other Mazda models during this period, nor was it licensed to other manufacturers.
Significant power gains are difficult due to its naturally aspirated, high-compression design. Minor improvements can be achieved via ECU remapping (typically +5-8 kW) or intake/exhaust modifications, but gains are limited. Forced induction would require extensive internal modifications and is not recommended for daily drivers.
Excellent for its class. In a Mazda2 (DJ), expect combined figures of approximately 5.2 L/100km (54 mpg UK) under the NEDC test cycle. Real-world mixed driving typically yields 5.5-6.5 L/100km (43-51 mpg UK), depending on driving style and conditions. Its Skyactiv technology prioritises efficiency.
Yes. The Mazda P5Z2 is an interference engine. If the timing chain were to fail or jump timing (an extremely rare occurrence with this chain-driven design), the pistons would contact the valves, causing severe internal engine damage. Regular oil changes are crucial for chain longevity.
Mazda specifies their own 'Mazda Moly 5W-30' oil, meeting API SN/ILSAC GF-5 or ACEA A5/B5 standards. Using a high-quality 5W-30 synthetic or semi-synthetic oil with these specifications is essential for protecting the engine and minimising carbon buildup. Change intervals should not exceed 10,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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