The Mazda PN62 is a 1,998 cc, inline — four petrol engine produced between 2014 and 2018. It features direct fuel injection, variable valve timing (VVT), and a turbocharger, delivering strong low — end torque for responsive everyday driving. The high compression ratio enables efficient combustion.
Fitted to models such as the CX — 5, Mazda3 (BP), and CX — 3, the PN62 was engineered for drivers seeking a balance of performance, fuel economy, and refinement. Emissions compli…
Mazda
Production years 2014–2018 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
The Mazda PN62 is a 1,998 cc inline-four turbocharged petrol engine engineered for compact and mid-size SUVs and hatchbacks (2014-2018). It combines direct fuel injection with variable valve timing to deliver responsive acceleration and efficient cruising. Designed to meet Euro 6 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 83.5 mm × 91.2 mm | |
Power output | 132–150 kW (180–204 PS) | |
Torque | 320–340 Nm @ 2,000–3,000 rpm | |
Fuel system | Multi-point + direct injection (DPI) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single-scroll turbo (Mitsubishi Heavy Industries) | |
Timing system | Chain (front-mounted) | |
Oil type | Mazda Genuine Oil 0W-20 | |
Dry weight | 148 kg |
The Mazda PN62 was used across Mazda's CX-5/B-series platforms with transverse mounting and no licensed external use. This engine received platform-specific adaptations-revised intake runner geometry in the CX-5 and modified ECU calibration in the Mazda3-and from 2016 the facelifted CX-5 adopted the PN62-TU variant with improved intake manifold design, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The PN62's primary reliability risk is carbon buildup on intake valves, with elevated incidence in urban stop-start driving. Internal Mazda data from 2017 reported increased hesitation and misfire codes in vehicles exceeding 60,000 km without intake cleaning, while UK DVSA records link over 18% of MOT failures in this engine to EGR flow issues exacerbated by carbon deposits. Extended oil change intervals and low-quality fuel accelerate deposit formation, making regular cleaning and correct oil specification critical.
Analysis derived from Mazda technical bulletins (2015-2019) and UK DVSA failure statistics (2016-2023). 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 PN62 offers strong performance and efficiency, but early models suffer from intake valve carbon buildup, especially with short-trip driving or extended oil changes. Later revisions (post-2016) improved intake design, so well-maintained examples can be robust. Strict adherence to 10,000 km oil changes using Mazda Genuine Oil 0W-20 is essential for longevity.
The biggest issues are intake valve carbon buildup, EGR valve clogging, turbocharger oil starvation, and timing chain tensioner wear. These are well-documented in Mazda service bulletins, particularly SI-15-017. Oil leaks from valve cover gaskets and occasional coil pack failures are also noted.
This 2.0L turbo petrol engine was used in the Mazda CX-5 (2014–2018), Mazda3 (BP, 2014–2018), and CX-3 (2015–2018). It replaced the naturally aspirated BP engine and was never licensed to other manufacturers. All models meet Euro 6 standards.
Yes. The PN62 responds well to ECU remaps, typically gaining +25–40 kW safely on stage 1 due to robust internals. Aftermarket upgrades like larger intercoolers, upgraded turbos, and exhaust systems can further increase output. However, tuning increases stress on the turbo and EGR system; supporting modifications and stricter maintenance are strongly advised.
Good for a turbo petrol. In a CX-5 or Mazda3, real-world figures are approximately 7.5 L/100km (city), 5.8 L/100km (highway), and 6.5 L/100km (combined), or about 43–48 mpg UK. Economy improves significantly with steady highway driving and proper maintenance.
Yes. The PN62 is an interference engine. If the timing chain fails or slips, pistons can collide with open valves, resulting in catastrophic engine damage. Regular inspection and timely replacement of the timing chain kit per Mazda recommendations are critical.
Mazda specifies Mazda Genuine Oil 0W-20 meeting API SN+ or ILSAC GF-6A specifications. Always use full synthetic oil designed for direct-injection turbo engines and change it at 10,000 km intervals to prevent carbon buildup and ensure adequate lubrication for the turbo and timing components.
Comprehensive technical documentation and regulatory references
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EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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