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 for refinement and fuel efficiency. Drivers could expect a quiet, vibration-free experience paired with adequate torque for urban environments. Emissions compliance was met through precise electronic fuel injection and catalytic conversion, achieving Euro 4 standards.
One documented service concern involves the variable valve timing (S-VT) solenoid, which can become sluggish or stick over time, leading to rough idle or reduced performance. This issue, referenced in Mazda Service Bulletin 01-005/10, is often linked to oil sludge buildup restricting solenoid operation. Regular oil changes with the correct specification are critical for prevention.
Mazda
Production years 2007–2011 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/5678).
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 | Mazda Moly 5W-30 | |
| Dry weight | 128 kg |
The naturally aspirated design provides predictable, linear power ideal for daily driving but requires adherence to 15,000 km oil change intervals to prevent S-VT solenoid issues and timing chain wear. Mazda Moly 5W-30 oil is critical due to its specific additive package for variable valve timing components. Extended idling or frequent short trips can accelerate sludge formation. The timing chain is designed for longevity but should be inspected for tensioner wear if a rattle is heard on cold start. Fuel injectors should be cleaned periodically to maintain optimal spray patterns and emissions.
Oil Specs: Requires Mazda Moly 5W-30 specification (Mazda Owner's Manual). Meets API SM/ILSAC GF-4 standards.
Emissions: Euro 4 certification applies to all production years (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output figures are consistent across model applications (Mazda TIS Doc. F6JB-PWR).
Mazda Technical Information System (TIS): Docs F6JB-001, F6JB-PWR, SIB 01-005/10
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on a flat machined surface on the front of the cylinder block, near the exhaust manifold (Mazda TIS F6JB-ID). The 8th VIN digit for F6JB-equipped vehicles is typically 'F'. The engine is visually identified by its black plastic valve cover with "Mazda" and "2.0" embossed on top. Critical differentiation from the smaller 1.6L engine: The F6JB has a larger bore and stroke, and its intake manifold runners are visibly longer. Service parts for the timing chain and S-VT system are generally consistent across all F6JB applications.
The F6JB's primary reliability risk is S-VT solenoid failure, with elevated incidence in vehicles subjected to infrequent oil changes or short-trip driving. Mazda internal service data indicates this as a leading cause of drivability complaints for this engine family, while timing chain rattle, though less common, can occur if maintenance is neglected. Adherence to the specified oil type and interval is critical for long-term health.
Analysis derived from Mazda technical bulletins (2007-2011) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about MAZDA F6JB.
Comprehensive technical documentation and regulatory references
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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)
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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
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