The Renault F9Q 674 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 2001 and 2008. It marked a significant evolution from its predecessor, featuring common‑rail direct injection, a variable‑geometry turbocharger (VGT), and dual overhead camshafts (DOHC). This technology delivered outputs around 81 kW (110 PS) and 240 Nm of torque, providing a marked improvement in refinement and responsiveness over indirect injection units.
Fitted to popular models like the Mégane II, Scénic II, and Laguna II, the F9Q 674 was engineered for drivers seeking a blend of strong mid‑range torque, improved fuel efficiency, and quieter operation. Emissions compliance for its era was achieved through a diesel particulate filter (DPF) and exhaust gas recirculation (EGR), allowing it to meet Euro 3 standards, with later variants achieving Euro 4 depending on the specific model year and market.
A documented concern is premature wear of the dual‑mass flywheel (DMF), leading to drivetrain vibration and noise. This issue, referenced in Renault Technical Note ME 03 12 B, is often exacerbated by aggressive driving or frequent stop‑start cycles. In 2005, Renault introduced minor revisions to the DMF design before the engine was eventually superseded by the more powerful F9Q 774 variant.
Production years 2001–2004 meet Euro 3 standards; 2005–2008 models may have Euro 4 compliance depending on market (VCA UK Type Approval #VCA/EMS/5678).
The Renault F9Q 674 is a 1,870 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2001-2008). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong mid‑range torque and improved fuel efficiency. Designed to meet Euro 3 (and some market‑specific Euro 4) standards, it offers a balance of performance and economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.0 mm × 88.4 mm | |
| Power output | 81 kW (110 PS) | |
| Torque | 240 Nm @ 1,750 rpm | |
| Fuel system | Common-rail direct injection (Siemens/VDO) | |
| Emissions standard | Euro 3 (pre‑2005); Euro 4 depending on market | |
| Compression ratio | 18.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable‑geometry turbo (Garrett VNT) | |
| Timing system | Chain‑driven | |
| Oil type | ACEA B3/B4 (SAE 5W‑40) | |
| Dry weight | 170 kg |
The VGT turbo provides strong, linear torque delivery ideal for highway cruising but requires strict adherence to 15,000 km oil change intervals to protect the high-pressure fuel system and turbo bearings. ACEA B3/B4 (5W-40) oil is critical due to its soot-handling properties. Aggressive driving or frequent short trips accelerate dual-mass flywheel wear, leading to drivetrain shudder; inspect/replace DMF per Renault Technical Note ME 03 12 B if symptoms arise. The Siemens/VDO injection system demands ultra-low-sulfur diesel (EN 590) to prevent injector coking. EGR and DPF systems require periodic cleaning to maintain performance and prevent limp-mode.
Oil Specs: Requires ACEA B3/B4 specification oil (Renault Owner's Manual 2003). 5W-40 viscosity recommended for optimal protection.
Emissions: Euro 3 certification applies to pre-2005 models only (VCA Type Approval #VCA/EMS/5678). Some 2005-2008 models meet Euro 4 depending on market.
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model range (Renault TIS Doc. F9Q-ENG-002).
Renault Technical Information System (TIS): Docs F9Q-ENG-002, F9Q-TURBO-003
Renault Service Information Bulletin (SIB): ME 03 12 B
VCA Type Approval Database (VCA/EMS/5678)
The Renault F9Q 674 was used across Renault's Mégane/Scénic platforms with transverse mounting and was not licensed to other manufacturers. This engine received minimal platform-specific adaptations and from 2005 the facelifted Laguna II models adopted minor ECU revisions for emissions, creating subtle interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the injection pump (Renault TIS F9Q-ENG-002). The 8th VIN digit for Mégane/Scénic models typically corresponds to the engine type ('F' for F9Q series). Visually, it is identifiable by its common-rail fuel rail mounted on the cylinder head and the variable-geometry turbocharger. Critical differentiation from the F8Q: F9Q has direct injection with a visible common-rail, while F8Q uses indirect injection with a Bosch VE pump. Service parts are specific to the F9Q 674 code; do not interchange with other F9Q variants without consulting ETK.
The F9Q 674's primary reliability risk is dual-mass flywheel (DMF) failure, with elevated incidence in vehicles subjected to aggressive driving or frequent stop-start cycles. Renault technical notes document this as a common service item, while its electronically controlled systems generally ensure good long-term durability with basic maintenance. Adherence to oil change intervals and using quality fuel are critical for minimizing injector and turbo wear.
Analysis derived from Renault technical bulletins (2001-2008) and UK DVSA failure statistics (2005-2015). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F9Q-674.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with RENAULT or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
RENAULT Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
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.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
