The Renault F4Rt 774 is a 1,998 cc, inline‑four turbocharged petrol engine produced between 2003 and 2008. It features a dual overhead camshaft (DOHC) design with 16 valves and multi‑point fuel injection, augmented by a turbocharger for enhanced performance. In standard form, it delivered 120 kW (163 PS) and 215 Nm of torque, offering spirited acceleration and overtaking capability for its compact platform.
Fitted primarily to the Mégane II RS and Laguna II GT, the F4Rt 7…
Production years 2003–2005 meet Euro 3 standards; 2006–2008 models meet Euro 4 standards depending on market .
The Renault F4Rt 774 is a 1,998 cc inline‑four turbocharged petrol engine engineered for performance-oriented hatchbacks and sedans (2003-2008). It combines DOHC 16-valve architecture with a single turbocharger and multi-point fuel injection to deliver strong mid-range torque and responsive power. Designed to meet Euro 3 and Euro 4 emissions standards, it offers a compelling blend of performance and drivability for its era.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 82.7 mm × 93.0 mm | |
Power output | 120 kW (163 PS) @ 5,000 rpm | |
Torque | 215 Nm @ 3,250 rpm | |
Fuel system | Multi-point fuel injection (Siemens) | |
Emissions standard | Euro 3 (2003–2005); Euro 4 (2006–2008) | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Garrett GT1752 (wastegate type) | |
Timing system | Chain-driven | |
Oil type | Renault RN0700 (SAE 5W‑40) | |
Dry weight | 142 kg |
The Renault F4Rt 774 was used across Renault's performance-oriented Mégane II RS and Laguna II GT platforms with transverse mounting. This engine received platform-specific adaptations-reinforced engine mounts in the RS and a different intercooler setup in the GT-and no major facelift revisions that affect core mechanical compatibility. All adaptations are documented in OEM technical bulletins.
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The F4Rt 774's primary documented reliability concern is turbocharger oil seal failure, with elevated incidence in vehicles subjected to frequent high-load operation without cooldown. Renault internal data indicates this issue was prevalent in early production batches, while owner reports frequently cite related oil consumption. Adherence to correct oil specification, change intervals, and post-drive cooldown is the most critical mitigating factor.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The F4Rt 774 is robust if maintained meticulously. Its main weakness is turbocharger oil seal failure, primarily affecting engines used aggressively without cooldown. Using the correct RN0700 oil, adhering to service intervals, and allowing post-drive cooldown are crucial. With proper care, these engines can reliably exceed 200,000 km.
The most frequent issues are turbocharger oil seal failure, ignition coil pack failure, timing chain tensioner rattle, and rocker cover oil leaks. These are well-documented in Renault service information and owner reports. Turbo failure is the most serious and costly to repair.
The F4Rt 774 2.0L turbo petrol engine was primarily used in the high-performance Renault Mégane II RS (2004-2008) and the Renault Laguna II GT (2005-2007). It was the performance engine for these models during their first generation.
Yes, significantly. The F4Rt is highly tunable. ECU remaps can easily yield 150-160 kW. With upgraded turbo, injectors, and intercooler, outputs of 200+ kW are achievable. The stock internals are strong, but supporting mods (fuel, cooling, clutch) are essential for reliability at higher power levels.
Fuel economy is moderate to high for a performance engine. Expect around 9.5-11.5 L/100km (29-24 mpg UK) in mixed driving for a Mégane II RS. Highway cruising can achieve 7.5-8.5 L/100km (37-33 mpg UK). Economy is heavily influenced by driving style due to the turbo and performance nature.
Yes. The F4Rt 774 is an interference engine. If the timing chain fails or jumps significantly, the pistons will collide with the open valves, causing catastrophic internal engine damage. Regular inspection of the timing chain and tensioner is vital.
Renault mandates oil meeting the RN0700 specification, typically a 5W-40 viscosity grade (ACEA A3/B4). Using the correct oil is non-negotiable to prevent turbocharger and camshaft wear. Popular brands include Elf Evolution SXR 5W-40 or Mobil 1 ESP 5W-40 that meet RN0700.
Comprehensive technical documentation and regulatory references
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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
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VCA Certification Portal
Type-approval guidance and documentation.
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