The Renault Z7V 708 is a 2,946 cc, V6 naturally aspirated petrol engine produced between 1992 and 2000. It features a DOHC 24‑valve layout and sequential multi‑point fuel injection. In standard form it delivers 147 kW (200 PS) and 267 Nm of torque, with smooth power delivery and a characteristic V6 sound.
Fitted primarily to the Laguna I and Safrane, the Z7V 708 was engineered for refined highway cruising, strong mid‑range response, and compliance with Euro 2 emissions stan…
Production years 1992–2000 meet Euro 2 standards .
The Renault Z7V 708 is a 2,946 cc V6 naturally aspirated petrol engine engineered for executive sedans and coupés (1992–2000). It combines sequential multi-point fuel injection with dual overhead camshafts to deliver smooth, linear power and refined cruising. Designed to meet Euro 2 emissions standards, it balances performance with drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,946 cc | |
Fuel type | Petrol | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 87.0 mm × 82.6 mm | |
Power output | 147 kW (200 PS) | |
Torque | 267 Nm @ 4,500 rpm | |
Fuel system | Sequential multi-point injection (Bosch Motronic) | |
Emissions standard | Euro 2 | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt-driven (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 185 kg |
The Renault Z7V 708 was used across Renault's large sedan platforms with longitudinal mounting. This engine received platform-specific adaptations—reinforced subframes in the Safrane and revised cooling in the Laguna I—and from 1997 the updated timing system introduced minor service part interchange limits. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The Z7V 708 is generally robust when maintained properly, but early units (1992–1996) are prone to timing belt tensioner failure if service intervals are exceeded. Later models (1997–2000) feature updated pulleys and improved durability. Using correct oil (RN0700) and 95 RON petrol, plus adhering to 60,000 km timing belt changes, greatly improves longevity.
Top issues include timing belt tensioner wear, catalytic converter degradation, intake manifold gasket leaks, and ignition coil pack failure. These are documented in Renault Technical Notes TN‑ME‑1996‑04 and service bulletins. Fuel quality and maintenance discipline significantly influence reliability.
The Z7V 708 powered the Laguna I (1994–2000) and Safrane (1992–1996) as the 3.0 V6. It was not used in Nissan or other alliance brands. All feature Euro 2 compliance with three-way catalytic converters.
Aftermarket ECU tuning is common on the Z7V-708 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In a Laguna I 3.0 V6, real-world consumption is ~11.2 L/100km (city) and ~7.4 L/100km (highway), or ~25 mpg UK combined. Safrane sedans average 11.8–12.5 L/100km (23–24 mpg UK). Economy is typical for a 3.0L V6 of this era.
Yes. The Z7V series uses an interference design. If the timing belt fails or jumps, piston-to-valve contact can cause catastrophic damage. Strict adherence to 60,000 km or 48-month belt replacement is critical to prevent engine destruction.
Renault specifies RN0700 (10W‑40, ACEA A3/B3) mineral or semi-synthetic oil. This protects the DOHC valvetrain and prevents sludge. Change every 15,000 km or 12 months—whichever comes first—to maintain reliability.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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