The Renault F9Q 803 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). Output is rated at 81 kW (110 PS), with peak torque of 260 Nm, engineered for accessible urban performance and fuel efficiency.
Fitted to the Mégane III facelift and Scénic III, the F9Q 803 was designed as an entry — level diesel option balanci…
Production years 2012–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5680).
The Renault F9Q 803 is a 1,870 cc inline‑four turbo‑diesel engineered for compact hatchbacks and MPVs (2012-2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver responsive low‑end torque and efficient urban running. Designed to meet Euro 5 standards, it prioritizes cost-effective ownership and low emissions.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,870 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 81.0 mm × 90.5 mm | |
Power output | 81 kW (110 PS) | |
Torque | 260 Nm @ 1,500–2,500 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 RN0720 (SAE 5W‑30) | |
Dry weight | 148 kg |
The Renault F9Q 803 was used across Renault's Mégane III/Scénic III platforms with transverse mounting. This engine received no major platform-specific adaptations but from 2015 received a minor update with a revised turbo actuator, creating subtle service part differences. All adaptations are documented in OEM technical bulletins.
The F9Q 803's primary reliability risk is turbocharger actuator failure, with elevated incidence in vehicles subjected to predominantly urban driving. Renault internal reports linked a notable number of failures to pre-2015 builds, while UK DVSA data shows DPF-related issues are common in short-trip examples. Carbon buildup and infrequent high-load operation increase turbo and DPF stress, making driving patterns and maintenance critical.
Analysis derived from Renault technical bulletins (2012-2016) and UK DVSA failure statistics (2015-2023). 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 803 is generally reliable for urban use, but pre-2015 models have a known risk of turbo actuator failure. Later revisions improved actuator durability. Long-term reliability depends heavily on driving patterns; regular highway use helps keep the turbo system clean and promotes DPF regeneration.
The most frequent issues are turbo actuator failure (leading to boost loss), DPF blockage from short trips, and EGR valve carbon buildup. Glow plug failures are also common as the engine ages. These are well-documented in Renault service bulletins, particularly SIB 8413A for the turbo actuator.
This 1.9L dCi 110 PS engine was used in the facelifted Mégane III (2012-2015) and Scénic III (2012-2016). It was positioned as the entry-level diesel option for these models during their final production years.
Yes, the F9Q 803 can be remapped. Stage 1 tunes can safely increase power to 130-140 PS and torque to 290-310 Nm. The stock turbo and internals are generally capable, but the lower factory output means supporting modifications are less critical than on higher-spec variants.
Fuel economy is excellent for city driving. In a Mégane III dCi 110, expect ~4.9 L/100km (58 mpg UK) combined. Real-world figures in predominantly urban use might be slightly higher, around 5.6 L/100km (50 mpg UK), depending on traffic and DPF regeneration cycles.
Yes. The F9Q 803 is an interference engine. If the timing chain fails or jumps, the pistons will collide with the open valves, causing catastrophic engine damage. While chain failure is rare, it underscores the importance of overall engine maintenance.
Renault mandates a 5W-30 synthetic oil meeting the RN0720 specification. This is critical for protecting the turbocharger, high-pressure fuel system, and emissions components. Using the correct oil and changing it every 20,000 km is essential for longevity.
Comprehensive technical documentation and regulatory references
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