The Mazda PN27 is a 2,248 cc, inline — four turbo — diesel engine produced between 2013 and 2019. It features common — rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts, delivering strong low — rpm torque for everyday drivability.
Fitted to the CX — 5, Mazda6, and MX — 5 Miata, the PN27 was engineered for refined performance with excellent fuel economy. Emissions compliance was achieved through exhaust gas recirculation (EGR) and a d…
Mazda
Production years 2013–2019 meet Euro 5 standards; all models comply uniformly as per.
The Mazda PN27 is a 2,248 cc inline-four turbo-diesel engineered for compact and mid-size vehicles (2013–2019). It combines common-rail direct injection with a single variable-geometry turbocharger to deliver responsive torque and efficient cruising. Designed to meet Euro 5 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,248 cc | |
Fuel type | Diesel | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 88.0 mm × 92.0 mm | |
Power output | 110–140 kW (150–190 PS) | |
Torque | 350–450 Nm @ 1,800–2,600 rpm | |
Fuel system | Denso common-rail (up to 2,200 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Mitsubishi Heavy Industries) | |
Timing system | Chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 158 kg |
The Mazda PN27 was used across Mazda's CX-5/Mazda6 platforms with longitudinal mounting and licensed to Ford for transverse applications in European markets. This engine received platform-specific adaptations-reinforced mounts in the CX-5 and optimized intake routing in the Mazda6-and from 2015 the facelifted CX-5 adopted the PN27TU variant with revised fuel pump internals, creating interchange limits. Partnerships allowed Ford's 2.2 TDCi units to leverage Mazda's common-rail injection system. All adaptations are documented in OEM technical bulletins.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
Diagnostic reminder: If a technician has recommended replacing the engine, you can send an enquiry to engine suppliers in the UK. Confirm the diagnosis first: an engine-code record does not diagnose a fault.
Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
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 PN27 delivers strong torque and good efficiency, but early models (2013–2015) had reliability concerns, especially high-pressure fuel pump failures. Later revisions (post-2015) improved pump durability, so well-maintained examples can be quite robust. Regular servicing and using high-quality oil (Mazda Genuine 5W-30 C2/C3) greatly aid longevity.
The biggest issues are high-pressure fuel pump failure, EGR valve carbon buildup, and turbo actuator linkage wear. Other complaints include oil leaks from the valve cover gasket and occasional DPF regeneration issues. These are well-documented in Mazda service bulletins.
This 2.2L diesel was used widely across Mazda's lineup. It appeared in the CX-5 (2.2d), Mazda6 (2.2d), and was licensed to Ford for the Mondeo 2.2 TDCi (150 PS) from 2014–2018. All versions share the same core design with minor calibration differences.
Aftermarket ECU tuning is common on the PN27 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Very good. In a CX-5 2.2d (140 kW version) from around 2015, typical consumption is ~6.5 L/100km (city) and ~4.8 L/100km (highway), or about 50 mpg UK combined. Expect 45–55 mpg (UK) on mixed roads for a healthy PN27. Real-world figures depend on driving style and load.
Yes. The PN27 series is an interference engine. This means if the timing chain jumps or breaks, pistons can hit open valves, causing serious engine damage. That's why chain maintenance is critical — any warning rattles should be addressed immediately.
Mazda specifies a 5W-30 synthetic oil meeting Mazda Genuine Oil C2/C3 specification. Always use a quality oil designed for turbo diesels and change it at regular intervals (around 15,000 km or as Mazda recommends) to ensure proper fuel system lubrication and minimize soot buildup.
Comprehensive technical documentation and regulatory references
EngineCode.uk is operated by Engine Finders UK Ltd. It provides engine-reference information and an optional commercial enquiry service. It is not an official manufacturer website. Check the record's sources and confirm vehicle-specific details before relying on it for parts, repairs or replacement.
Our editorial standard prioritises relevant manufacturer documentation and official regulatory sources. The sources and verification status for a record should be checked alongside the data.
A statement is not verified merely because a source is listed. Where supporting evidence is missing or conflicting, the record should identify that limitation. Please report unsupported or inconsistent information.
Transparency in gaps
A missing or unverified value does not mean the manufacturer has withheld it. We distinguish information not yet verified, information not available to us, and information explicitly not disclosed by the source.
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.
Records are subject to review and correction. Source links, dates and verification notes should be read with the technical information. Our Editorial and Sourcing Policy explains our standards and review process.
Found an error or missing source? Report a problem with this page. Include the field or statement concerned and a supporting source if available. You can also email corrections@enginecode.uk.
Copyright and permissions
Images and other material may be protected by copyright. Attribution does not by itself grant permission to reuse material. If you believe material on this site infringes your rights, contact copyrights@enginecode.uk with the page URL and details of your claim. We will review the material and take appropriate action.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
Our Privacy Policy explains how Engine Finders UK Ltd uses information from visits, vehicle lookups, enquiries and messages. Our Cookie Policy explains cookies and similar technologies and how to change your choices.
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
Ownership and commercial services
EngineCode.uk is owned and operated by Engine Finders UK Ltd. Alongside our reference content, we offer an optional replacement-engine enquiry service through Engine Finders and may identify relevant services provided by businesses connected with us. These commercial connections are disclosed. Using an enquiry service is not required to read our reference content.
Engine Finders UK Ltd operates this website. Our optional enquiry service has a commercial purpose. Our Ownership and Commercial Disclosure explains the relationship between the reference website and that service. Participating suppliers pay a fee or subscription to participate on the network and receive quote requests.
Use this record as a starting point for identification. Specifications and vehicle applications may contain errors or omissions. Confirm the exact engine variant and compatibility using vehicle-specific documentation and a qualified supplier or technician.
All external links open in new tabs. Please verify current availability of resources.