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 Mé…
Production years 2001–2005 meet Euro 3 standards; 2006–2010 models may have Euro 4 compliance depending on market 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 | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 145 kg |
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.
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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.
The most common questions about engine codes, what they mean, how to find them and how this database works
The F9Q 680 is a robust and powerful engine when properly maintained. Its main weakness is the VGT turbocharger actuator, which can fail due to carbon buildup. With strict adherence to the service schedule—especially oil and filter changes—and avoiding constant short trips, it can be a very dependable engine for high mileage.
The most critical issue is failure of the variable geometry turbocharger's actuator. Other common problems include EGR valve and cooler clogging, DPF blockage from short trips, and high-pressure fuel pump failure. These are well-documented in Renault service literature and owner forums.
This engine was primarily used in the second-generation Renault Mégane (2002-2008), second-generation Scénic (2003-2009), and second-generation Laguna (2001-2007). It was marketed as the dCi 110 and represented a significant upgrade over the older indirect injection diesels.
Aftermarket ECU tuning is common on the F9Q-680 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Very good for its power output. Expect real-world figures of approximately 6.0-7.0 L/100km (40-47 mpg UK) on mixed driving in a Mégane or Scénic. Its efficient common-rail injection and VGT turbo make it suitable for both city and highway use, offering a good balance of performance and economy.
Yes. The F9Q 680 is an interference engine. If the timing chain were to break or jump, the pistons and valves will collide, causing severe internal engine damage. This makes regular inspection of the timing chain and tensioner critical for long-term reliability.
Renault specifies a fully synthetic 5W-40 oil meeting ACEA B4 standards. Using the correct oil is crucial for protecting the turbocharger bearings, high-pressure fuel pump, and maintaining the cleanliness of the VGT mechanism. Avoid using older mineral oil specifications.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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