The Mazda F6JB is a 1,998 cc, inline‑four naturally aspirated petrol engine produced between 2007 and 2011. It features dual overhead camshafts (DOHC) and variable valve timing (S — VT) to deliver responsive power across the rev range. This engine was designed for smooth, linear power delivery, making it well — suited for everyday commuting and relaxed highway cruising.
Fitted primarily to the second — generation Mazda3 (BK) and Mazda5 (CR) MPV, the F6JB was engineered fo…
Mazda
Production years 2007–2011 meet Euro 4 standards .
The Mazda F6JB is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and MPVs (2007-2011). It combines DOHC with S-VT variable valve timing to deliver smooth, linear power and responsive throttle. Designed to meet Euro 4 standards, it balances everyday drivability with respectable fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 83.5 mm × 91.2 mm | |
Power output | 104–108 kW (140–145 PS) | |
Torque | 180–184 Nm @ 4,000 rpm | |
Fuel system | Sequential Multi-Point Fuel 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 | 128 kg |
The Mazda F6JB was used across Mazda's BK/CR platforms with transverse mounting. This engine received platform-specific adaptations-slightly different intake manifolds for the Mazda3 and Mazda5-but no major facelift revisions occurred during its production, ensuring broad parts interchangeability. 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
Yes, the F6JB is generally a reliable and robust engine when maintained correctly. Its main weakness is the S-VT solenoid, which requires strict adherence to oil change intervals. With proper care using the specified 5W-30 oil, these engines can easily exceed 200,000 km without major issues.
The most frequent issues are S-VT solenoid sticking (causing rough idle), timing chain tensioner wear (causing a cold-start rattle), ignition coil failure (causing misfires), and PCV valve blockage (leading to oil leaks). These are all well-documented in Mazda service information.
The F6JB 2.0L petrol engine was used in the second-generation Mazda3 (BK chassis, 2007-2011) and the first-generation Mazda5 (CR chassis, 2007-2010). It was the larger of the two petrol engine options for these models, alongside the 1.6L Z6 engine.
Yes, but gains are modest. An ECU remap can yield around 10-15 kW extra by optimizing ignition and fuel maps. More significant power requires hardware like a performance exhaust and intake, but the naturally aspirated design limits potential compared to turbocharged engines. Reliability remains good with mild tuning.
Real-world fuel economy is respectable. In a Mazda3 2.0i, expect around 8.5 L/100km in city driving and 5.8 L/100km on the highway, averaging approximately 40 mpg UK combined. The lighter Mazda3 will be more efficient than the heavier Mazda5 MPV.
Yes. The F6JB is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing severe internal engine damage. This underscores the importance of addressing any timing chain noise promptly.
Mazda specifies 5W-30 viscosity oil meeting their 'Mazda Moly' or equivalent specification (e.g., API SM/GF-4). Using the correct oil is crucial for protecting the S-VT system and timing chain. Change intervals should not exceed 15,000 km or 12 months.
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.