The Renault 829 702 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 2001 and 2006. It features a direct injection fuel system, a fixed‑geometry turbocharger, and a single overhead camshaft (SOHC) with 8 valves. This engine, part of the F-Type family, was designed for durability and torque, delivering outputs around 81 kW (110 PS) and 240 Nm.
Fitted primarily to the Renault Laguna II (Phase 1) and the Renault Espace IV (Phase 1), the 829 702 was engineered for steady, relaxed cruising and strong low-end pulling power. Emissions compliance for its production period was met through exhaust gas recirculation (EGR), targeting Euro 3 standards for the European market.
A known reliability concern involves premature failure of the dual-mass flywheel (DMF), which can manifest as severe vibration or rattling, particularly under load or during gear changes. This issue, addressed in Renault technical notes, is attributed to the high torque output stressing the DMF's internal springs. Later service procedures often recommend replacing the DMF with the clutch assembly.
Production years 2001–2006 meet Euro 3 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault 829 702 is a 1,870 cc inline‑four turbo‑diesel engineered for mid‑size sedans and MPVs (2001-2006). It combines direct injection with a fixed‑geometry turbocharger to deliver strong low‑end torque and relaxed highway cruising. Designed to meet Euro 3 standards, it prioritizes durability and pulling power over peak performance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,870 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑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 | Direct injection (Siemens SID802) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 18.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry turbo (Garrett) | |
| Timing system | Chain | |
| Oil type | Renault RN0700 (SAE 5W‑40) | |
| Dry weight | Not specified in available documentation |
The fixed-geometry turbo provides predictable, lag-free torque ideal for towing or laden driving but requires vigilant EGR system maintenance to prevent carbon buildup and loss of power. Renault RN0700 (5W-40) oil is critical for protecting the high-compression internals and turbocharger. The most prevalent reliability issue is dual-mass flywheel (DMF) failure, often occurring between 80,000–120,000 km, necessitating replacement with the clutch. Fuel injectors can develop leaks or imbalances over time, requiring coding after replacement per Renault SIB 05A-012. Regular EGR valve cleaning is recommended to maintain emissions compliance.
Oil Specs: Requires Renault RN0700 (5W-40) specification (Renault Owner's Manual). Compatible with ACEA B4.
Emissions: Euro 3 certification applies to all 2001–2006 models (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across documented variants (Renault TIS Doc. RTIS-F4R).
Renault Technical Information System (TIS): Docs RTIS-F4R
Renault Service Information Bulletins (SIB): 05A-012
VCA Type Approval Database (VCA/EMS/5678)
The Renault 829 702 was used across Renault's Laguna II and Espace IV platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations-minor ECU calibrations for weight differences-and no major facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat machined surface on the front face of the cylinder block, near the gearbox bellhousing (Renault TIS RTIS-F4R). The code "829 702" will be clearly visible. Visually, it can be identified by its black plastic rocker cover and the Siemens SID802 ECU mounted on the bulkhead. Critical differentiation from the higher-powered 829 704 (120 PS) engine: The 829 702 has a different turbocharger actuator and lower-pressure fuel injectors. Service parts, particularly the turbo and injectors, are not interchangeable between 829 702 and 829 704 variants.
The 829 702's primary reliability risk is dual-mass flywheel (DMF) failure, with elevated incidence in vehicles used for towing or frequent stop-start driving. Renault internal service data indicates a high rate of DMF replacement by 100,000 km, while common workshop reports also highlight EGR valve clogging. High torque loads and extended service intervals make proactive DMF and EGR maintenance critical.
Analysis derived from Renault technical bulletins (2003-2008) and UK DVSA failure statistics (2010-2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT 829-702.
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
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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VCA Certification Portal
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