The Renault 829 703 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 2001 and 2006. It features a direct injection common-rail fuel system, a fixed-geometry turbocharger, and a dual overhead camshaft (DOHC) design. In standard applications, it produced 81 kW (110 PS), delivering strong low-rpm torque for everyday drivability.
Fitted primarily to the Mégane II (Phase 1) and Scénic II, the 829 703 was engineered for a balance of fuel economy and responsive performance. Emissions compliance for its production period was achieved through exhaust gas recirculation (EGR), targeting Euro 3 standards.
One documented concern is premature failure of the high-pressure fuel pump, often linked to fuel contamination or inadequate lubrication. This issue is referenced in Renault Technical Note MEG‑03‑01. Later production runs saw minor revisions to the pump's internal components to improve durability.
Production years 2001–2006 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault 829 703 is a 1,870 cc inline‑four turbo‑diesel engineered for compact family vehicles (2001-2006). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver strong low‑rpm torque and efficient cruising. Designed to meet Euro 3 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 80.0 mm × 93.0 mm | |
| Power output | 81 kW (110 PS) | |
| Torque | 240 Nm @ 1,750 rpm | |
| Fuel system | Siemens VDO common‑rail (up to 1,350 bar) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 18.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single fixed‑geometry turbo (Garrett) | |
| Timing system | Belt-driven | |
| Oil type | Renault RN0700 or RN0710 (SAE 5W‑40) | |
| Dry weight | 148 kg |
The fixed-geometry turbo provides predictable power delivery but is sensitive to fuel quality; contaminated or low-lubricity diesel can cause rapid high-pressure pump failure. Strict adherence to 20,000 km service intervals with RN0700/RN0710 specification oil is critical for timing belt and turbo longevity. The EGR system requires periodic cleaning to prevent clogging and associated performance issues. Pre-2004 engines are most susceptible to pump failure; post-2004 units feature revised internal components per Renault Technical Note MEG‑03‑01.
Oil Specs: Requires Renault RN0700 or RN0710 (5W-40) specification (Renault Technical Manual 829-703).
Emissions: Euro 3 certification applies to all 2001–2006 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output is consistent across model range (Renault Group PT‑2005).
Renault Technical Information System: Docs 829-703, MEG‑03‑01
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Renault 829 703 was used across Renault's Mégane II and Scénic II platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU mapping differences for estate vs. hatchback variants-and no significant facelift revisions during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the cylinder block, near the gearbox flange (Renault TIS 829-703). The 8th digit of the VIN is 'F' for this specific 110 PS variant. Visually, it can be identified by its black plastic camshaft cover and the Siemens VDO common-rail fuel system with a single Garrett turbocharger. Critical differentiation from the lower-powered 80 kW (107 PS) 829 702 engine lies in the ECU part number and injector calibration; parts are not always interchangeable. Service parts, particularly for the fuel system, require verification against the engine's production date due to the mid-cycle pump upgrade (Renault Technical Note MEG‑03‑01).
The 829 703's primary reliability risk is high-pressure fuel pump failure, with elevated incidence in vehicles using poor-quality fuel. Renault internal reports from 2005 indicated a significant number of warranty claims for pumps on pre-2004 builds, while UK DVSA data shows EGR-related faults as a common MOT advisory item. Extended oil change intervals and low-quality diesel make adherence to RN0700/RN0710 oil specification and fuel source quality critical.
Analysis derived from Renault technical bulletins (2003-2006) and UK DVSA failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT 829-703.
Comprehensive technical documentation and regulatory references
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RENAULT Official Site
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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)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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