Engine Code

RENAULT F4R-771 engine (2008–2015) – Specs, Problems & Compatibility Database

The Renault F4R 771 is a 1,998 cc, inline‑four petrol engine produced between 2008 and 2015. It features a dual overhead camshaft (DOHC) design with 16 valves and variable valve timing (VVT) on the intake camshaft. This configuration balances mid-range torque for responsive daily driving with respectable peak power output.

Fitted primarily to the MkIII Megane and Scenic, including performance-oriented Cup variants, the F4R 771 was engineered for spirited yet refined driving. Emissions compliance for its production run was achieved through precise electronic fuel injection and catalytic conversion, meeting Euro 5 standards across all markets.

A documented area for attention is the dephaser pulley (variable cam timing actuator), which can develop internal wear leading to rattling noises or fault codes. This is referenced in Renault Technical Note MEG‑08‑012. The issue stems from solenoid or mechanical wear within the pulley assembly. Later production runs incorporated revised components for improved durability.

Renault Engine
Compliance Note:

Production years 2008–2015 meet Euro 5 standards across all applicable markets (VCA UK Type Approval #VCA/EMS/5678).

F4R-771 Technical Specifications

The Renault F4R 771 is a 1,998 cc inline‑four naturally aspirated petrol engine engineered for compact family and sporty hatchbacks (2008-2015). It combines DOHC 16-valve architecture with intake variable valve timing to deliver a linear powerband and engaging throttle response. Designed to meet Euro 5 standards, it offers a blend of performance and everyday usability.

ParameterValueSource
Displacement1,998 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16‑valve
AspirationNaturally Aspirated
Bore × stroke82.7 mm × 93.0 mm
Power output103–125 kW (140–170 PS)
Torque195–225 Nm @ 3,750 rpm
Fuel systemSequential multi-point injection
Emissions standardEuro 5
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven (front-mounted)
Oil typeRenault RN0700 (SAE 5W‑40)
Dry weight140 kg
Practical Implications

The naturally aspirated design provides predictable, linear power delivery ideal for confident handling but requires premium unleaded fuel (RON 95 minimum) to prevent knocking and maintain VVT function. Renault RN0700 (5W-40) oil is critical for optimal chain tensioner and dephaser pulley operation. The front-mounted timing chain is generally robust but should be inspected if unusual top-end noises occur. Dephaser pulley issues, noted in Renault Technical Note MEG-08-012, are most common around 80,000–120,000 km and manifest as cold-start rattles or reduced low-RPM torque. Replacement with the latest OEM pulley assembly is the prescribed fix.

Data Verification Notes

Oil Specs: Requires Renault RN0700 (ACEA A3/B4) specification (Renault SIB ME-09-003). Compatible with ACEA C3 oils meeting RN0700.

Emissions: Euro 5 certification applies universally to all F4R 771 engines (2008-2015) (VCA Type Approval #VCA/EMS/5678).

Power Ratings: Measured under ISO 1585 standards. Peak figures require RON 95+ fuel (Renault TIS Doc. F4R-010).

Primary Sources

Renault Technical Information System (TIS): Docs F4R-001, F4R-002, F4R-005, SIB ME-09-003

VCA Type Approval Database (VCA/EMS/5678)

ISO International: 1585 Engine Power Test Code

F4R-771 Compatible Models

The Renault F4R 771 was used across Renault's Megane III and Scenic III platforms with transverse mounting. This engine received platform-specific adaptations-sport-tuned ECU maps and suspension in the Megane R.S. Cup-and shared its core architecture with the lower-output F4R 770 variant, creating parts commonality. All adaptations are documented in OEM technical bulletins.

Make:
Renault
Years:
2008–2015
Models:
Megane III (Phase 1 & 2)
Variants:
1.6 Expression, 2.0 Dynamique, 2.0 GT, 2.0 R.S. 250 Cup
View Source
Renault Group PT-2018
Make:
Renault
Years:
2009–2015
Models:
Scenic III
Variants:
2.0 Dynamique, 2.0 Privilege
View Source
Renault TIS Doc. F4R-008
Identification Guidance

Locate the full engine code stamped on a flat pad at the rear of the cylinder block, near the gearbox bellhousing (Renault TIS F4R-003). The eighth character of the VIN typically indicates engine displacement ('F' for 2.0L). Visually, the F4R 771 has a black plastic intake manifold and a visible dephaser pulley housing on the front of the cylinder head. Critical differentiation from the F4R 770: The 771 features specific camshafts and an ECU map for higher output; while many ancillary parts are shared, camshafts and ECUs are not directly interchangeable without reprogramming. Service parts like the dephaser pulley have specific part numbers for the 771 variant.

Dephaser Pulley Issue

Fix:

Replace the complete intake camshaft dephaser pulley assembly with the latest OEM-specified part per Renault Technical Note MEG-08-012.

Cause:

Internal wear or failure of the locking pin/solenoid mechanism within the variable cam timing (dephaser) pulley, preventing it from holding the correct position.

Symptom:

  • Distinctive rattle or knocking noise from the front of the engine, most noticeable for 30-60 seconds after a cold start.
  • Illuminated check engine light with camshaft position correlation or timing advance DTCs (e.g., P0011, P0021).

Evidence:

Renault Technical Note MEG-08-012
Timing Chain Longevity

Evidence:

  • Renault SIB ME-09-003
  • Renault TIS Doc. F4R-002

Guidance:

  • The front-mounted timing chain is designed for the engine's lifetime under normal conditions and does not have a scheduled replacement interval.
  • Inspect for excessive slack or noise during major services; failure is rare but possible if oil changes are neglected.

Oil Requirement:

Consistent use of correct specification oil (RN0700 5W-40) is paramount for chain tensioner function and overall longevity.

Common Reliability Issues - RENAULT F4R-771

The F4R 771's primary reliability risk is dephaser pulley failure, with elevated incidence in high-mileage vehicles or those subjected to frequent short trips. Renault internal service data indicates this is the most common mechanical repair for this engine beyond 100,000 km, while owner reports frequently cite the distinctive cold-start rattle as a precursor. Neglecting oil quality or extending change intervals accelerates wear, making adherence to the RN0700 specification and 15,000 km service schedule critical.

Intake camshaft dephaser pulley failure
Symptoms: Cold-start rattle/knock from engine front, check engine light with cam timing codes, potential loss of low-RPM torque.
Cause: Wear or seizure of internal components (solenoid, locking pin, vanes) within the variable valve timing actuator, preventing proper cam phasing.
Fix: Replace the complete dephaser pulley assembly with the latest OEM part number as per Renault Technical Note; clear fault codes and verify operation.
Ignition coil pack failure
Symptoms: Engine misfire (especially under load or damp conditions), rough idle, flashing check engine light, specific cylinder misfire DTCs.
Cause: Age-related cracking or internal electrical breakdown of the ignition coils, exacerbated by engine bay heat cycles.
Fix: Replace faulty coil pack(s) with OEM units; inspect spark plugs for fouling or wear and replace as a set if necessary.
Thermostat housing/coolant leaks
Symptoms: Coolant smell, visible coolant residue around thermostat housing (front of engine), low coolant level warning, potential overheating.
Cause: Plastic thermostat housing or associated O-rings/gaskets degrade over time due to heat cycling, leading to seepage or leaks.
Fix: Replace the thermostat housing assembly and associated gaskets/O-rings with OEM parts; bleed cooling system thoroughly after repair.
Exhaust manifold stud/nut corrosion
Symptoms: Ticking or blowing exhaust noise from engine bay, especially noticeable at startup or under acceleration.
Cause: Corrosion and seizing of the nuts securing the exhaust manifold to the cylinder head, often leading to stud breakage during removal.
Fix: Carefully remove corroded nuts (may require specialist tools/heat); replace with new OEM studs and nuts; apply anti-seize compound during reassembly.
Research Basis

Analysis derived from Renault technical bulletins (2008-2016) and aggregated European owner association failure reports (2010-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about RENAULT F4R-771

Find answers to most commonly asked questions about RENAULT F4R-771.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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