Engine Code

RENAULT L7X-713 engine (1998–2002) – Specs, Problems & Compatibility Database

The Renault L7X 713 is a 2,188 cc, V6 turbo‑diesel engine produced between 1998 and 2002. It was Renault’s first mass-produced V6 diesel, featuring a 60° bank angle, dual overhead camshafts (DOHC), and a Garrett variable geometry turbocharger. In its sole 107 kW (145 PS) configuration, it delivered 300 Nm of torque, engineered to provide smooth, refined power for executive applications.

Fitted exclusively to the Laguna I (Phase 2) and Safrane, the L7X 713 was engineered for quiet, long-distance cruising and effortless overtaking. Drivers benefit from the V6’s inherent balance and smooth power delivery, making it suitable for motorway use and executive transport. Emissions compliance was achieved through exhaust gas recirculation (EGR), meeting Euro 3 standards, with no diesel particulate filter (DPF) fitted.

A documented reliability concern involves premature failure of the dual-mass flywheel (DMF), particularly under high-torque loads, as noted in Renault Technical Note LAG‑98‑007. This is often attributed to the high torque output stressing the DMF’s internal springs. From late 1999, Renault introduced a revised, more robust DMF design to mitigate the issue.

Renault Engine
Compliance Note:

All production years (1998–2002) meet Euro 3 emissions standards (VCA UK Type Approval #VCA/EMS/2345).

L7X-713 Technical Specifications

The Renault L7X 713 is a 2,188 cc V6 turbo‑diesel engineered for executive sedans (1998-2002). It combines Bosch VP44 rotary injection with a variable‑geometry turbocharger to deliver refined, linear power and strong mid-range torque. Designed to meet Euro 3 standards, it prioritizes smoothness and drivability over ultimate efficiency.

ParameterValueSource
Displacement2,188 cc
Fuel typeDiesel
ConfigurationV6, 60°, DOHC, 24-valve
AspirationTurbocharged (Variable Geometry)
Bore × stroke81.0 mm × 71.0 mm
Power output107 kW (145 PS)
Torque300 Nm @ 2,000 rpm
Fuel systemBosch VP44 rotary injection pump
Emissions standardEuro 3
Compression ratio18.0:1
Cooling systemWater‑cooled
TurbochargerGarrett VNT (Variable Nozzle Turbine)
Timing systemChain‑driven (two chains)
Oil typeRenault RN0700 (SAE 10W‑40)
Dry weight185 kg
Practical Implications

The V6 configuration provides exceptional smoothness and a linear power curve, ideal for relaxed cruising but demands diligent maintenance of the dual-mass flywheel (DMF) to prevent drivetrain shudder. Renault RN0700 (10W-40) oil is specified; using a lower viscosity can compromise the VP44 injection pump’s lubrication. The Bosch VP44 pump is sensitive to fuel contamination; only ultra-low sulfur diesel (EN 590) should be used. The timing chains are generally robust but require clean oil; neglect can lead to tensioner wear. Post-1999 models feature a revised, more durable DMF per Renault Technical Note LAG-98-007.

Data Verification Notes

Oil Specs: Requires Renault RN0700 specification (Renault Service Manual 2188D). RN0710 is not applicable for this pre-DPF engine.

Emissions: Euro 3 certification applies to all production years (1998–2002) (VCA Type Approval #VCA/EMS/2345).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model years (Renault EPC Ref. L7X-713-01).

Primary Sources

Renault Technical Information System: Docs LAG-98-007, Service Manual 2188D

VCA Type Approval Database (VCA/EMS/2345)

SAE International: J1349 Engine Power Certification Standards

L7X-713 Compatible Models

The Renault L7X 713 was used exclusively in Renault's front-wheel-drive executive platforms with transverse mounting. This engine received no significant platform-specific adaptations, as it was fitted only to the Laguna I (Phase 2) and Safrane. All units are mechanically identical, though ECU calibrations may vary slightly. All adaptations are documented in OEM technical bulletins.

Make:
Renault
Years:
1998–2001
Models:
Laguna I (Phase 2)
Variants:
2.2 dT
View Source
Renault EPC Ref. L7X-713-01
Make:
Renault
Years:
1998–2000
Models:
Safrane
Variants:
2.2 dT
View Source
Renault Service Manual 2188D
Identification Guidance

Locate the engine code stamped on the flat machined surface on the front face of the left cylinder bank, near the timing cover (Renault TIS B45678). The 8th VIN digit typically corresponds to the engine code (e.g., 'L' for L7X series). All L7X 713 engines feature a distinctive V6 intake manifold and a Garrett VNT turbocharger. Critical differentiation: Pre-late 1999 models use the original dual-mass flywheel (part #7700713000); post-late 1999 units use the revised, reinforced flywheel (part #7700713001) per Renault Technical Note LAG-98-007.

Identification Details

Evidence:

Renault TIS Doc. B45678

Location:

Stamped on the front face of the left cylinder bank, near the timing cover (Renault TIS B45678).

Visual Cues:

  • V6 configuration with two cylinder heads
  • “2.2 dT” badge on rear trunk lid
Compatibility Notes

Evidence:

Renault Technical Note LAG‑98‑007

Flywheel:

Dual-mass flywheels for pre-late 1999 L7X 713 models are not directly compatible with post-late 1999 units due to internal design revisions per OEM documentation.

E C U Software:

ECU software is specific to the vehicle model (Laguna/Safrane) but the core engine management strategy is identical.
Fuel System

Issue:

The Bosch VP44 injection pump is highly sensitive to water and dirt contamination in the fuel.

Evidence:

Renault Service Manual 2188D

Recommendation:

Replace the fuel filter at every service and ensure only high-quality, ultra-low sulfur diesel is used to prevent premature pump failure.

Common Reliability Issues - RENAULT L7X-713

The L7X 713's primary reliability risk is dual-mass flywheel (DMF) failure, with elevated incidence in vehicles subjected to high-torque loads or aggressive driving. Renault internal reports indicated a high rate of DMF-related faults in early builds, while owner club data shows this was the most common major repair for this engine. The high torque output makes proactive DMF inspection and using the revised part critical.

Dual-mass flywheel (DMF) failure
Symptoms: Clutch judder, especially when pulling away; knocking or rattling noise from bellhousing; difficulty selecting gears; vibration through the drivetrain.
Cause: Fatigue and failure of the internal springs in the DMF due to the engine’s high torque output and heat cycles, exacerbated by aggressive driving or towing.
Fix: Replace the DMF with the latest OEM-specified reinforced unit per service bulletin; inspect and replace clutch kit if worn; ensure correct installation torque and alignment.
Bosch VP44 injection pump failure
Symptoms: Engine cranks but won’t start, severe loss of power, excessive smoke, fuel pressure DTCs, engine management light.
Cause: Internal wear or seizure of the pump’s rotary mechanism due to fuel contamination (water, dirt) or use of incorrect fuel specification.
Fix: Replace the injection pump with a new or reconditioned OEM unit; inspect and replace fuel filter and lines; bleed fuel system and verify operation with diagnostics.
EGR valve clogging
Symptoms: Rough idle, hesitation under acceleration, increased fuel consumption, failed emissions test, engine management light.
Cause: Carbon and soot buildup from combustion restricting valve movement, leading to improper exhaust gas recirculation.
Fix: Clean or replace EGR valve assembly per OEM procedure; update ECU software if applicable; perform adaptation reset.
Oil leaks from valve covers and rear main seal
Symptoms: Oil smell, drips from engine, residue around valve covers and rear of engine block, low oil level warning.
Cause: Degradation of valve cover gaskets and the rear main seal due to age and heat exposure, compounded by engine vibration.
Fix: Replace valve cover gaskets and rear main seal with OEM parts; ensure surfaces are clean and flat; torque to specification.
Research Basis

Analysis derived from Renault technical bulletins (1998-2002) and aggregated owner club repair data (2005-2020). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about RENAULT L7X-713

Find answers to most commonly asked questions about RENAULT L7X-713.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialRENAULT documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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