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…
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 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.
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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 829 702 is fundamentally robust but has a known weakness in its dual-mass flywheel (DMF), which often fails between 80,000–120,000 km. With the DMF replaced and regular maintenance (especially EGR cleaning), the engine itself can be very durable and last well beyond 200,000 km.
The most frequent issues are dual-mass flywheel failure (causing judder/vibration), EGR valve clogging (causing rough idle/power loss), turbo actuator failure (causing boost issues), and fuel injector leaks or imbalances. These are well-documented in Renault service information.
This 1.9 dCi engine was used in the Renault Laguna II (Phase 1, 2001-2005) and the Renault Espace IV (Phase 1, 2002-2006), specifically in the 110 PS variants. It was not used in other Renault models or licensed to other manufacturers during this period.
Yes, it has modest tuning potential. An ECU remap can typically yield gains of 20-30 kW (27-40 PS) and increased torque. However, pushing power significantly higher can overstress the standard turbo, clutch, and DMF, requiring supporting upgrades for reliability.
Official combined figures are around 6.0 L/100km (47 mpg UK). Real-world economy varies: expect 5.5-6.5 L/100km (43-51 mpg UK) on mixed driving, with highway cruising potentially achieving 5.0 L/100km (56 mpg UK) and city driving around 7.0 L/100km (40 mpg UK).
Yes. The 829 702 is an interference engine. If the timing chain were to fail (though rare), the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the timing chain is very durable.
Renault specifies RN0700 (5W-40) synthetic oil. Using the correct specification is vital for protecting the turbocharger and managing soot from the diesel combustion process. Change intervals should not exceed 20,000 km or 12 months.
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)
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
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