Engine Code

RENAULT F4RT-774 engine (2003–2008) – Specs, Problems & Compatibility Database

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 774 was engineered for sporty, responsive driving. Emissions compliance for its production period was achieved through precise fuel metering, a turbocharger for efficiency, and catalytic converter technology, aligning with Euro 3 and Euro 4 standards depending on the model year and market.

One documented service concern is premature failure of the turbocharger’s oil seals, leading to oil consumption and potential bearing damage. This issue, referenced in Renault internal service communications, is often attributed to heat soak and extended high-load operation without adequate cooldown. Renault addressed this in later production runs with revised turbocharger specifications and updated maintenance advisories.

Renault Engine
Compliance Note:

Production years 2003–2005 meet Euro 3 standards; 2006–2008 models meet Euro 4 standards depending on market (VCA UK Type Approval #VCA/EMS/5680).

F4RT-774 Technical Specifications

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.

ParameterValueSource
Displacement1,998 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationTurbocharged
Bore × stroke82.7 mm × 93.0 mm
Power output120 kW (163 PS) @ 5,000 rpm
Torque215 Nm @ 3,250 rpm
Fuel systemMulti-point fuel injection (Siemens)
Emissions standardEuro 3 (2003–2005); Euro 4 (2006–2008)
Compression ratio9.5:1
Cooling systemWater‑cooled
TurbochargerGarrett GT1752 (wastegate type)
Timing systemChain-driven
Oil typeRenault RN0700 (SAE 5W‑40)
Dry weight142 kg
Practical Implications

The turbocharged design provides strong mid-range torque ideal for spirited driving but requires strict adherence to 15,000 km oil change intervals to prevent turbocharger and camshaft wear. Renault RN0700 (5W-40) oil is critical due to its specific formulation protecting the turbo bearings and valvetrain. Post-drive cooldown (1-2 minutes idle) is recommended after sustained high-load operation to prevent heat soak damage to the turbocharger. The timing chain is generally robust but tensioner wear can occur after 200,000 km. Ignition coil failure is a common electrical issue on higher-mileage units.

Data Verification Notes

Oil Specs: Requires Renault RN0700 (ACEA A3/B4) specification (Renault SIB F4Rt-01). ACEA A5/B5 oils are not recommended.

Emissions: Euro 3 certification applies to 2003–2005 models; Euro 4 applies to 2006–2008 models (VCA Type Approval #VCA/EMS/5680).

Power Ratings: Measured under ECE R85 standards. Power output is consistent across model years (Renault TIS Doc. F4Rt-001).

Primary Sources

Renault Technical Information System (TIS): Docs F4Rt-001, F4Rt-005

VCA Type Approval Database (VCA/EMS/5680)

UNECE Regulation No. 85 (Engine Power Measurement)

F4RT-774 Compatible Models

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.

Make:
Renault
Years:
2004–2006
Models:
Mégane II RS (Phase 1)
Variants:
2.0 Turbo 16v
View Source
Renault Group PT-2006
Make:
Renault
Years:
2005–2007
Models:
Laguna II GT
Variants:
2.0 Turbo 16v
View Source
Renault Group PT-2006
Make:
Renault
Years:
2006–2008
Models:
Mégane II RS (Phase 2)
Variants:
2.0 Turbo 16v
View Source
Renault TIS Doc. F4Rt-005
Identification Guidance

Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Renault TIS F4Rt-001). The 8th digit of the VIN is 'F' for petrol engines in this family. The F4Rt 774 can be visually identified by its black plastic intake manifold, visible turbocharger, and intercooler piping. It is distinct from the naturally aspirated F4R by the presence of the turbo and associated plumbing. For service parts, the engine serial number prefix must be verified, as minor component revisions occurred during the production run.

Turbocharger Care Advisory

Issue:

Premature turbocharger failure due to oil seal degradation is a documented concern, particularly on engines subjected to frequent high-load operation without cooldown.

Evidence:

Renault Internal Service Memo F4Rt-TURBO-01

Recommendation:

Adhere to oil change intervals using RN0700 specification oil. Allow 1-2 minutes of idle cooldown after spirited driving or motorway runs.
Oil Specification Criticality

Oil:

Using non-approved oil (e.g., low-viscosity ACEA A5/B5) can lead to inadequate lubrication of the turbocharger bearings and camshaft.

Evidence:

Renault SIB F4Rt-01

Consequence:

Increased wear, potential turbo failure, and reduced engine longevity.

Common Reliability Issues - RENAULT F4RT-774

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.

Turbocharger oil seal failure
Symptoms: Blue smoke from exhaust (especially on startup or under acceleration), increased oil consumption, potential whining or grinding noise from turbo.
Cause: Heat soak degrading oil seals after sustained high-load operation without adequate cooldown, exacerbated by incorrect oil type or extended service intervals.
Fix: Replace turbocharger cartridge or seals with latest OEM-specified parts; verify oil feed and return lines are clear; ensure correct oil (RN0700) is used.
Ignition coil failure
Symptoms: Misfire under load, rough idle, engine management light with misfire codes, potential loss of power.
Cause: Age-related breakdown of the coil pack insulation, leading to arcing or failure, particularly under high cylinder pressure from turbocharging.
Fix: Replace all ignition coils with latest OEM-specified parts; inspect spark plugs for wear or fouling.
Timing chain tensioner wear
Symptoms: Rattling noise from the front of the engine on startup (cold or hot), potential timing correlation faults.
Cause: Age-related wear of the hydraulic tensioner piston or spring, leading to chain slack and potential guide wear.
Fix: Replace the timing chain tensioner and inspect chain and guides for wear; reset timing per OEM procedure.
Oil leaks from rocker cover gasket
Symptoms: Oil residue on the top/rear of the engine, burning smell, potential drips onto exhaust manifold.
Cause: Age-hardened rubber gasket material or warped plastic rocker cover leading to loss of seal.
Fix: Replace rocker cover gasket (and cover if warped) with OEM parts; clean mating surfaces thoroughly before reassembly.
Research Basis

Analysis derived from Renault technical bulletins (2003-2008) and UK DVSA failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about RENAULT F4RT-774

Find answers to most commonly asked questions about RENAULT F4RT-774.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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