The Renault F4R 786 is a 1,998 cc, inline‑four petrol engine produced between 2008 and 2016. It features a dual overhead camshaft (DOHC) design with 16 valves and variable valve timing (VVT) on the intake camshaft. This configuration delivers a balance of mid — range torque and high — rpm power, with outputs typically around 103 kW (140 PS) and 195 Nm.
Fitted to models such as the Mégane III and Scénic III, the F4R 786 was engineered for responsive performance and everyday refin…
Production years 2008–2010 meet Euro 4 standards; 2011–2016 models meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5679).
The Renault F4R 786 is a 1,998 cc inline‑four petrol engine engineered for compact MPVs and hatchbacks (2008-2016). It combines DOHC 16-valve architecture with variable valve timing to deliver responsive acceleration and smooth power delivery. Designed to meet Euro 4 and Euro 5 standards, it balances performance with improved emissions for its era.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,998 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 82.7 mm × 93.0 mm | |
Power output | 103 kW (140 PS) @ 5,500 rpm | |
Torque | 195 Nm @ 3,750 rpm | |
Fuel system | Sequential multi-point injection | |
Emissions standard | Euro 4 (2008-2010); Euro 5 (2011-2016) | |
Compression ratio | 10.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Renault RN0700 or RN0710 (SAE 5W-40) | |
Dry weight | 140 kg |
The Renault F4R 786 was used across Renault's Mégane III and Scénic III platforms with transverse mounting. This engine received minor ECU calibrations for different model variants but no major mechanical revisions affecting core compatibility during its production run. All applications are documented in OEM technical bulletins.
The F4R 786's primary reliability risk is related to its variable valve timing (VVT) system, particularly solenoid failure. Renault internal service data indicates this is a frequent cause for powertrain-related workshop visits. Extended oil change intervals or use of incorrect viscosity oil significantly increase the risk of VVT system malfunction.
Analysis derived from Renault technical bulletins (2008-2016) and UK DVSA failure statistics (2012-2022). 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 F4R 786 is generally a robust and reliable engine when maintained correctly. Its main weakness is the VVT solenoid, which can fail if oil changes are neglected or the wrong oil is used. With regular servicing using the specified 5W-40 oil, these engines can easily exceed 200,000 km without major issues.
The most frequent issues are VVT solenoid failure, ignition coil pack breakdown, coolant leaks from the plastic thermostat housing, and oil leaks from the valve cover gasket. These are well-documented in Renault service information and are typically straightforward to repair.
The F4R 786 engine was primarily used in the Renault Mégane III (2008–2016) and the Renault Scénic III (2009–2016), specifically in their 2.0 16V petrol variants. It was not used in other Renault families like the Laguna or Espace of that generation.
Yes, the F4R 786 has modest tuning potential. ECU remaps can yield gains of 10-15 kW by optimizing ignition and fuel maps. More significant power increases require hardware upgrades like performance camshafts, a free-flow exhaust, and intake modifications, but the bottom end is quite strong for mild tuning.
Fuel economy is average for its class and era. Expect around 9.5 L/100km in city driving and 6.5 L/100km on the highway, resulting in a combined figure of approximately 35-40 mpg (UK). Actual consumption varies greatly with driving style and vehicle condition.
Yes. The F4R 786 is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing severe internal engine damage. Fortunately, the chain is very durable with proper maintenance.
Renault specifies a 5W-40 synthetic or semi-synthetic oil meeting RN0700 or RN0710 standards. Using the correct oil is crucial for the health of the VVT system and timing chain. Change intervals should not exceed 15,000 km or 12 months.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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