The Renault F9Q 804 is a 1,870 cc, inline‑four turbo‑diesel engine produced between 2012 and 2018. It features a cast iron block, aluminium cylinder head, double overhead camshafts (DOHC), and a variable geometry turbocharger (VGT) for responsive power delivery. Output is rated at 96 kW (130 PS), with peak torque of 320 Nm.
Fitted primarily to the Mégane III facelift and Scénic III, the F9Q 804 was engineered for a balance of refinement, mid-range torque, and improved fuel efficiency over its predecessor. Emissions compliance for its production period was achieved through a diesel particulate filter (DPF) and exhaust gas recirculation (EGR), meeting Euro 5 standards.
A documented reliability concern involves potential failure of the EGR cooler, which can lead to coolant contamination and overheating. This issue, referenced in Renault Technical Note MEC 012 A, is often attributed to internal corrosion or thermal stress. The design was carried over from the F9Q 762 with minor ECU updates for emissions.
Production years 2012–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5680).
The Renault F9Q 804 is a 1,870 cc inline‑four turbo‑diesel engineered for compact models (2012-2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong mid‑range pull and efficient highway cruising. Designed to meet Euro 5 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 | 96 kW (130 PS) | |
| Torque | 320 Nm @ 1,750 rpm | |
| Fuel system | Bosch CP3 common‑rail (up to 1,600 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Garrett) | |
| Timing system | Chain‑driven | |
| Oil type | Renault RN0700 / RN0710 (SAE 5W‑30) | |
| Dry weight | 165 kg |
The VGT provides strong mid-range torque ideal for overtaking but demands strict adherence to 20,000 km oil change intervals using Renault RN0700/0710 specification to prevent turbo bearing wear and chain tensioner issues. Ultra-low-sulfur diesel (EN 590) is mandatory to protect the Bosch CP3 fuel pump. DPF systems require regular highway driving for passive regeneration; frequent short trips can lead to clogging. EGR cooler integrity should be monitored, as failure can cause severe engine damage per Renault Technical Note MEC 012 A.
Oil Specs: Requires Renault RN0700 or RN0710 (5W-30) specification (Renault Technical Note LUB 001).
Emissions: Euro 5 certification applies to all 2012-2018 models (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under EEC 80/1269 standards. Output is consistent across model applications (Renault EPC).
Renault Technical Information System: Docs MEC 012 A, LUB 001
Renault Workshop Manual 1307C
VCA Type Approval Database (VCA/EMS/5680)
The Renault F9Q 804 was used across Renault's C platform vehicles with transverse mounting. This engine received no major platform-specific adaptations, ensuring broad parts interchangeability with the earlier F9Q 762, though ECU software is specific to the model and year. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange (Renault Workshop Manual 1307C). The 8th VIN digit typically corresponds to the engine code 'F9Q'. Visually, the engine is identifiable by its black plastic cam cover with 'dCi 16V' branding and the Garrett turbocharger mounted at the front. Critical differentiation from the F9Q 762: The 804 variant shares the same mechanical base but has a different ECU part number (e.g., 8200889002) calibrated for specific model years. Service parts are generally compatible across F9Q 762 and 804 applications, but ECU software must match the specific vehicle model and emissions standard.
The F9Q 804's primary reliability risk is EGR cooler failure, with elevated incidence in vehicles subjected to frequent short trips or overheating events. Renault internal data indicated a notable failure rate, while UK DVSA records show DPF-related issues are common in urban vehicles. Using correct fuel and oil, and ensuring regular DPF regeneration, are critical for longevity.
Analysis derived from Renault technical bulletins (2012-2018) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RENAULT F9Q-804.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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