The Renault M4R 714 is a 1,997 cc, inline‑four naturally aspirated petrol engine produced between 2008 and 2015. It features dual overhead camshafts (DOHC), 16 valves, and variable valve timing (VVT) on the intake camshaft. This configuration delivers a balance of 103 kW (140 PS) and 195 Nm of torque, with VVT optimizing valve overlap for improved low — end response and fuel efficiency.
Fitted to models such as the Laguna III, Mégane III, and Scénic III, the M4R 714 was engine…
Production years 2008–2015 meet Euro 5 standards for all markets (EU Regulation (EC) No 715/2007).
The Renault M4R 714 is a 1,997 cc inline‑four naturally aspirated petrol engine engineered for mid‑size sedans and MPVs (2008-2015). It combines DOHC 16-valve architecture with variable valve timing to deliver smooth, linear power delivery and good fuel economy. Designed to meet Euro 5 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,997 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 84.0 mm × 90.1 mm | |
Power output | 103 kW (140 PS) @ 6,000 rpm | |
Torque | 195 Nm @ 3,750 rpm | |
Fuel system | Sequential multi-point fuel injection | |
Emissions standard | Euro 5 | |
Compression ratio | 10.1:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | Not specified in public documentation |
The Renault M4R 714 was used across Renault's Laguna III and Mégane III platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU calibrations for the Scénic III-but no major facelift revisions affecting core compatibility during its production run. All adaptations are documented in OEM technical bulletins.
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The M4R 714's primary reliability risk is variable valve timing (VVT) system malfunction, with elevated incidence in vehicles with irregular oil changes. Renault internal data indicates VVT-related faults are a common cause for diagnostic intervention, while owner reports frequently cite timing chain tensioner noise. Extended oil change intervals and use of incorrect oil viscosity make VVT solenoid replacement and tensioner inspection critical.
Analysis derived from Renault technical bulletins (2008-2015) and owner-reported failure data (2015-2023). 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 M4R 714 is generally robust with regular maintenance. Its main weaknesses are the VVT system and timing chain tensioner, which are sensitive to oil quality and change intervals. Using the correct 5W-40 oil and servicing every 15,000 km greatly improves longevity. Well-maintained examples can easily exceed 200,000 km.
The most frequent issues are VVT solenoid failures causing rough idle, timing chain tensioner wear leading to startup rattle, higher-than-average oil consumption on early builds, and ignition coil failures. These are well-documented in Renault service notes and owner communities.
The M4R 714 2.0L petrol engine was used in the third-generation Laguna (2008-2015), Mégane (2008-2015), and Scénic (2009-2015). It was typically found in mid-to-high trim levels, replacing the older F4R engine in these platforms.
Yes, but gains are modest due to its naturally aspirated design. ECU remaps can yield 8-12 kW (10-15 PS) and slightly more torque by optimizing ignition and fuel maps. Significant power increases require forced induction, which is complex and costly. Most tuning focuses on drivability improvements.
Official combined figures range from 7.5 to 8.5 L/100km (31-38 mpg UK), depending on the model and transmission. Real-world driving typically yields 8.5-10.5 L/100km (27-33 mpg UK) in mixed conditions. Highway cruising can achieve 6.5-7.5 L/100km (38-43 mpg UK).
Yes. The M4R 714 is an interference engine. If the timing chain jumps or breaks, the pistons will collide with the open valves, causing severe internal engine damage. This makes maintaining the timing chain and tensioner in good condition absolutely critical.
Renault mandates oil meeting the RN0700 specification, typically a 5W-40 synthetic or semi-synthetic. Using the correct oil is vital for protecting the VVT system and timing chain. ACEA A3/B4 is the minimum acceptable standard if RN0700 is unavailable.
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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