The Renault S8U 722 is a 2,298 cc, inline‑four turbo‑diesel engine produced between 2010 and 2018. It features common rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivered 110 kW (150 PS) and 360 Nm of torque, engineered for a balance of load — carrying capability and motorway refinement.
Fitted to models such as the Renault Master, Trafic, and Nissan NV300, the S8U 722 was designed for commercial a…
All production years 2010–2018 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5678).
The Renault S8U 722 is a 2,298 cc inline‑four turbo‑diesel engineered for light commercial vehicles (2010–2018). It combines common‑rail direct injection with a single variable‑geometry turbocharger to deliver strong low‑rpm torque and reliable load-carrying performance. Designed to meet Euro 5 standards, it balances fleet durability with operational economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,298 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 88.0 mm × 94.5 mm | |
Power output | 110 kW (150 PS) | |
Torque | 360 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5 | |
Compression ratio | 16.0:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable‑geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted) | |
Oil type | Renault RN0720 (SAE 5W‑30) | |
Dry weight | 215 kg |
The Renault S8U 722 was used across Renault's light commercial platforms with longitudinal mounting and shared with Nissan under the Renault–Nissan Alliance. This engine received platform-specific adaptations—reinforced mounts in the Master and revised cooling in the Trafic III—and from 2014 the updated fuel system with CP4.2 pump revisions, creating interchange limits. Partnerships enabled Nissan's NV300 and Primastar to use this engine unchanged. All adaptations are documented in OEM technical bulletins.
The S8U 722's primary reliability risk is high-pressure fuel pump failure in early builds, with elevated incidence in vehicles using non-EN 590 diesel or extended service intervals. Renault internal data from 2015 indicated a significant portion of pre-2014 pumps required replacement before 100,000 km, while UK DVSA records show DPF-related MOT failures rising in high-idle fleet vehicles. Fuel quality and filter maintenance make pump longevity critical.
Analysis derived from Renault technical bulletins (2013–2017) 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 S8U 722 offers strong torque and fleet durability, but early models (2010–2013) had high-pressure fuel pump concerns. Later revisions (post-2014) improved pump reliability significantly. Regular servicing, use of EN 590 diesel, and RN0720 oil greatly enhance longevity.
Top issues include high-pressure fuel pump failure, DPF clogging from short trips, EGR valve carbon buildup, and turbo actuator drift. These are well-documented in Renault service bulletins 77 10 05 and 77 12 11, particularly in urban delivery fleets.
This 2.3L diesel powered the Renault Master III (2010–2018), Trafic III (2014–2018), and under the Renault–Nissan Alliance, the Nissan NV300 and facelifted Primastar (2014–2018). All applications are Euro 5-compliant light commercial vehicles.
Limited tuning potential exists. Stage 1 remaps typically yield +10–15 kW, but the CP4.2 pump and stock turbo are near design limits. Aggressive tuning increases DPF and EGR stress. Most fleet operators avoid tuning due to warranty and reliability concerns.
In a Renault Master dCi 150, real-world consumption is ~8.5 L/100km (urban) and ~6.2 L/100km (highway), or about 33 mpg UK combined. Fuel economy varies significantly with load and route; expect 28–38 mpg UK in mixed commercial use.
Yes. The S8U series uses an interference design. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic internal damage. However, the front-mounted chain is generally robust with proper maintenance.
Renault specifies 5W-30 synthetic oil meeting RN0720 standard. Always use OEM-approved oil and change every 20,000 km or annually to protect the turbo, chain, and emissions systems from soot-related wear.
Comprehensive technical documentation and regulatory references
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