The Renault F9Q 680 is a 1,870 cc, inline‑four turbocharged diesel engine produced between 2001 and 2010. It features a DOHC, 16‑valve design with direct common-rail injection and a variable geometry turbocharger (VGT). This engine was engineered to offer a significant step up in refinement and power over the indirect injection F8Q series, delivering outputs around 81 kW (110 PS) and 240 Nm of torque for enhanced drivability and efficiency.
Fitted to models such as the Mégane II, Scénic II, and Laguna II, the F9Q 680 was designed for drivers seeking a blend of performance, fuel economy, and modern diesel refinement in compact and mid-size family vehicles. Emissions compliance was met through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), allowing most units to meet Euro 3 standards, with certain later builds achieving Euro 4 depending on the market.
One documented concern is premature failure of the variable geometry turbocharger's actuator mechanism, which can lead to loss of boost and limp-home mode. This issue, referenced in Renault Technical Bulletin TB 612, is often linked to carbon buildup and heat stress. The design was eventually superseded by the more advanced dCi 130 and dCi 150 variants.
Production years 2001–2005 meet Euro 3 standards; 2006–2010 models may have Euro 4 compliance depending on market (VCA UK Type Approval applicable for registered imports).
The Renault F9Q 680 is a 1,870 cc inline‑four turbocharged diesel engineered for compact and mid-size family cars (2001-2010). It combines direct common-rail injection with a variable geometry turbocharger to deliver strong low-end torque and smooth, efficient cruising. Designed to meet Euro 3 (and some Euro 4) standards, it balances modern performance with improved emissions control.
| 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) @ 4,000 rpm | |
| Torque | 240 Nm @ 1,750 rpm | |
| Fuel system | Siemens VDO common-rail (up to 1,350 bar) | |
| Emissions standard | Euro 3 / Euro 4 (market dependent) | |
| Compression ratio | 16.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Variable geometry turbo (VGT, Garrett) | |
| Timing system | Chain‑driven camshafts | |
| Oil type | Synthetic 5W‑40 (ACEA B4) | |
| Dry weight | 145 kg |
The VGT turbo provides strong, linear torque ideal for overtaking and highway driving but requires strict adherence to 20,000 km oil change intervals to prevent turbo and chain wear. ACEA B4 5W-40 synthetic oil is critical for protecting the high-pressure fuel system and turbo bearings. Extended idling should be minimized to reduce carbon buildup in the VGT mechanism. The Siemens VDO fuel system demands ultra-low-sulfur diesel (ULSD) to prevent injector clogging. Post-2006 models feature revised EGR coolers; pre-2006 units should have the cooler inspected for leaks per Renault TB 612. DPF systems require periodic regeneration to maintain performance.
Oil Specs: Requires synthetic 5W-40 meeting ACEA B4 specification (Renault Service Manual 77 11 245 999). Supersedes older mineral oil recommendations.
Emissions: Euro 3 certification applies to pre-2006 models only (VCA Historical Database). Some 2006-2010 models meet Euro 4 depending on market.
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across applications with minor variations for specific models (Renault Homologation Sheet).
Renault Service Manual (Ref: 77 11 245 999)
Renault Technical Bulletin TB 612
Renault EPC (Electronic Parts Catalogue)
UK Vehicle Certification Agency (VCA) Historical Database
The Renault F9Q 680 was used across Renault's Mégane/Scénic/Laguna platforms with transverse mounting. This engine received minor platform-specific adaptations-different exhaust manifolds for the Laguna-but no major facelift revisions occurred, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the block, typically near the gearbox flange or on the front face below the cylinder head (Renault Service Manual 77 11 245 999). The full code for this variant is 'F9Q 680'. Visually, it is identifiable by its aluminium block and head, prominent Siemens VDO common-rail fuel rail, and a Garrett variable geometry turbocharger. Differentiate from the similar F9Q 650 by power output and specific model application; the 650 is less powerful.
The F9Q 680's primary reliability risk is failure of the variable geometry turbocharger's actuator, with elevated incidence in vehicles subjected to frequent short trips or neglected oil changes. Renault service data indicates this is the most frequent cause of drivability complaints for this engine. Carbon buildup from incomplete DPF regenerations increases actuator stress, making adherence to the service schedule and driving habits critical.
Analysis derived from Renault technical bulletins (2001-2010) and owner club maintenance records. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F9Q-680.
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