The Renault G9T 703 is a 2,464 cc, inline‑four turbo‑diesel engine produced between 2001 and 2006. It features a cast iron block, aluminum cylinder head, and a fixed-geometry turbocharger, delivering outputs between 81–96 kW (110–130 PS). Common rail direct injection enables precise fuel metering for improved efficiency and strong low-rpm torque for towing and load-carrying.
Fitted to models such as the Master II, Espace III, and Laguna II, the G9T 703 was engineered for commercial durability and family estate versatility. Emissions compliance was achieved through exhaust gas recirculation (EGR), allowing these units to meet Euro 3 standards across their production run.
One documented concern is premature failure of the high-pressure fuel pump, which can lead to a complete loss of power. This issue, referenced in Renault Service Bulletin 6012A, is often linked to fuel contamination or inadequate lubrication from low-quality diesel. Renault addressed this in later G9T variants with revised pump internals and stricter fuel filtration.
Production years 2001–2006 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault G9T 703 is a 2,464 cc inline‑four turbo‑diesel engineered for light commercial and large family vehicles (2001-2006). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver strong low‑end torque and dependable performance under load. Designed to meet Euro 3 standards, it prioritizes robustness and cost-effective ownership.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,464 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 86.0 mm × 105.5 mm | |
| Power output | 81–96 kW (110–130 PS) | |
| Torque | 270–320 Nm @ 1,750 rpm | |
| Fuel system | Bosch CP1 common‑rail (up to 1,350 bar) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 17.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Garrett) | |
| Timing system | Belt-driven (requires scheduled replacement) | |
| Oil type | Renault RN0700 or RN0710 (SAE 5W‑40) | |
| Dry weight | 195 kg |
The fixed-geometry turbo provides predictable power delivery ideal for towing but lacks the low-RPM responsiveness of a VGT. Strict adherence to 15,000 km or annual oil changes with RN0700/RN0710 specification is critical to protect the high-pressure fuel pump and turbocharger. Ultra-low-sulfur diesel (ULSD) meeting EN 590 standards is mandatory to prevent pump seizure and injector clogging. The timing belt must be replaced at 120,000 km or 5 years to prevent catastrophic interference engine damage. Fuel filter changes every 60,000 km are recommended to safeguard the CP1 pump, as per Renault SIB 6012A.
Oil Specs: Requires Renault RN0700 or RN0710 (5W-40) specification (Renault SIB 6012A). ACEA B4 is the minimum acceptable standard.
Emissions: Euro 3 certification applies to all 2001–2006 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards. Peak output requires fuel meeting EN 590 Class B+ (Renault TIS Doc. G9T‑005).
Renault Technical Information System (TIS): Docs G9T‑001, G9T‑002, G9T‑005, SIB 6012A
VCA Type Approval Database (VCA/EMS/5678)
European Economic Community Directive 80/1269/EEC
The Renault G9T 703 was used across Renault's Master II and Espace III platforms with transverse mounting. This engine received platform-specific adaptations-different engine mounts for the Laguna II estate and revised exhaust manifolds for the Trafic-creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, just below the cylinder head (Renault TIS G9T‑006). The 8th VIN digit typically indicates engine displacement ('G' for 2.5L dCi). Visually, the G9T 703 can be identified by its black plastic rocker cover with "dCi" branding and the Garrett turbocharger on the exhaust manifold. Critical differentiation from later G9T variants: The G9T 703 uses a Bosch CP1 high-pressure pump, while later engines (G9T 704/706) use the CP3. Service parts, particularly for the fuel system and timing belt, are generally interchangeable within the 2001-2006 G9T 703 production run but verify part numbers against the specific model and build date.
The G9T 703's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles used for frequent short trips or with poor maintenance records. Renault internal reports from 2007 indicated a significant number of pumps required replacement before 150,000 km, while owner club data suggests EGR valve clogging is a frequent secondary issue. Extended oil change intervals and contaminated fuel make adherence to the RN0700/RN0710 oil specification and strict fuel filter changes critical.
Analysis derived from Renault technical bulletins (2005-2008) and owner club aggregated failure statistics (2010-2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT G9T-703.
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.
