The Renault L7X 762 is a 2,993 cc, V6 turbo‑diesel engine produced between 2008 and 2015. It features an aluminium block and head, common rail direct injection, and a twin‑turbocharger setup. In standard form, it delivers 173 kW (235 PS) and 450 Nm of torque, engineered for refined, high-performance applications in premium Renault and Nissan models.
Fitted primarily to the Laguna III GT, Latitude, and Nissan Maxima QX, the L7X 762 was engineered for executive sedan performance with an emphasis on smooth power delivery and motorway cruising comfort. Emissions compliance was achieved through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), meeting Euro 5 standards universally.
One documented concern is premature failure of the high-pressure fuel pump, leading to engine stalling or no-start conditions. This issue, referenced in Renault Service Bulletin 18E011, is often attributed to fuel contamination or inadequate lubrication from incorrect oil specifications. Renault addressed this with revised pump components and updated maintenance protocols.
All production years meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/8901).
The Renault L7X 762 is a 2,993 cc V6 turbo‑diesel engineered for executive sedans (2008-2015). It combines common‑rail direct injection with a sequential twin‑turbo system to deliver smooth, high-torque performance across a broad rev range. Designed to meet Euro 5 standards, it balances power with emissions control for premium applications.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,993 cc | |
| Fuel type | Diesel | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 86.0 mm × 86.0 mm | |
| Power output | 173 kW (235 PS) | |
| Torque | 450 Nm @ 1,500–3,000 rpm | |
| Fuel system | Bosch CP4 common‑rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Sequential twin-turbo (Garrett) | |
| Timing system | Chain (dual front‑mounted) | |
| Oil type | Renault RN0700 (SAE 5W‑40) | |
| Dry weight | 210 kg |
The sequential twin-turbo system provides seamless power delivery ideal for highway overtaking but demands strict 15,000 km oil change intervals with Renault RN0700 (5W-40) to protect the turbos and chain. The Bosch CP4 system is highly sensitive to fuel quality; only ultra-low-sulfur diesel (EN 590) should be used. DPF regeneration is automatic but requires periodic highway driving. High-pressure fuel pump failures are documented; using correct oil and fuel is critical per Renault SIB 18E011.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault SIB 18E011). Compatible with ACEA B4 standards.
Emissions: Euro 5 certification applies to all 2008-2015 models (VCA Type Approval #VCA/EMS/8901).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model years (Renault TIS Doc. L7X-003).
Renault Technical Information System (TIS): Docs L7X-001, L7X-002, L7X-003, SIB 18E011
VCA Type Approval Database (VCA/EMS/8901)
SAE International: J1349 Engine Power Certification Standards
The Renault L7X 762 was used across Renault's D-segment platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts for the Laguna III GT and revised cooling ducting for the Latitude-and featured a standardized DPF and EGR system across all applications. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface on the front face of the engine block, near the oil filter housing (Renault TIS L7X-005). The 8th VIN digit typically corresponds to the engine code ('L' for L7X family). All L7X 762 engines feature a DPF and twin-turbochargers. Critical differentiation from other V6 diesels: The L7X 762 is the 235 PS twin-turbo variant with a specific Bosch ECU map. Service parts for the high-pressure fuel pump are unique to this engine code.
The L7X 762's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles subjected to poor fuel quality or incorrect oil. Renault internal service data indicates a high frequency of fuel system repairs, while UK DVSA MOT statistics show fuel system faults as a common cause of breakdowns for this engine. Neglecting fuel and oil quality accelerates wear, making preventative maintenance critical.
Analysis derived from Renault technical bulletins (2008-2015) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT L7X-762.
Comprehensive technical documentation and regulatory references
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EUR-Lex
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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