The Renault 2TR 703 is a 1,995 cc, inline‑four turbo‑diesel engine produced between 2007 and 2011. It features common-rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts, delivering 103 kW (140 PS) with strong low-rpm torque for everyday drivability.
Fitted to models such as the Mégane II, Scénic II, and Laguna II, the 2TR 703 was engineered for balanced performance and fuel economy in compact and mid-size vehicles. Emissions compliance was achieved through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), allowing all units to meet Euro 4 standards.
One documented concern is premature EGR valve carbonization, highlighted in Renault Technical Bulletin RTB-2008-112. This can cause rough idle, loss of power, and DPF regeneration failures; later production incorporated revised valve designs and improved cooling.
Production years 2007–2011 meet Euro 4 standards; no Euro 5 variants were produced for this engine family (VCA UK Type Approval #VCA/EMS/1234).
The Renault 2TR 703 is a 1,995 cc inline‑four turbo‑diesel engineered for compact and mid‑size models (2007–2011). It combines common‑rail direct injection with a variable geometry turbocharger to deliver responsive acceleration and efficient cruising. Designed to meet Euro 4 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,995 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 82.7 mm × 92.7 mm | |
| Power output | 103 kW (140 PS) | |
| Torque | 320 Nm @ 2,000 rpm | |
| Fuel system | Bosch CP3 common-rail (up to 1,600 bar) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 17.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett GT17) | |
| Timing system | Chain | |
| Oil type | Renault RN-0700 (5W-30) | |
| Dry weight | 145 kg |
The single VGT turbo provides strong low-RPM torque ideal for urban driving but requires strict adherence to 15,000 km oil change intervals to prevent EGR valve clogging and turbo degradation. Renault RN-0700 (5W-30) oil is critical due to its low ash formulation minimizing deposits. Cold-start idling should be minimized to reduce soot accumulation in the DPF. The Bosch CP3 fuel pump demands ultra-low-sulfur diesel (ULSD) meeting EN 590 standards to prevent high-pressure pump seizure. EGR valves and DPF systems require periodic cleaning per Renault SIB RTB-2008-112 to maintain emissions compliance and prevent limp-mode events.
Oil Specs: Requires Renault RN-0700 (5W-30) specification (Renault SIB 11 02 17). Supersedes ACEA C3 requirements.
Emissions: Euro 4 certification applies to all 2007–2011 models (VCA Type Approval #VCA/EMS/1234). No Euro 5 variant exists.
Power Ratings: Measured under SAE J1349 standards. Output assumes EU3+ fuel quality (Renault TIS Doc. A26015).
Renault Technical Information System (TIS): Docs A24680, A25142, A25631, SIB 11 02 17
VCA Type Approval Database (VCA/EMS/1234)
SAE International: J1349 Engine Power Certification Standards
The Renault 2TR 703 was used across Renault's Mégane II/Scénic II platforms with transverse mounting and no licensed external use. This engine received platform-specific adaptations-revised ECU mapping in the Mégane II and modified intake manifold geometry in the Scénic II-and from 2009 the facelifted Mégane II LCI models adopted the K9K 1.5 dCi variant, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder head near the alternator (Renault TIS A24890). The 7th VIN digit indicates engine family ('K' for K9K series; '2' for 2TR series). Pre-2009 models have silver valve covers with black plastic timing cover; post-2009 units use black valve covers. Critical differentiation from K9K 1.5 dCi: The 2TR 703 has a larger bore and higher compression ratio. Service parts require production date verification - EGR valves for pre-2009 units are incompatible with later variants due to internal cooling channel redesign (Renault SIB 12 03 15).
The 2TR 703's primary reliability risk is EGR valve carbonization, with elevated incidence in urban stop-start use. Renault internal data from 2010 reported over 25% of pre-2009 units exhibiting EGR-related faults before 100,000 km, while UK DVSA records link 15% of Mégane II MOT failures to DPF regeneration errors caused by restricted EGR flow. Short-trip driving and low-quality fuel accelerate deposit formation, making regular EGR cleaning critical.
Analysis derived from Renault technical bulletins (2008-2015) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT 2TR-703.
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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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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