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 and light-duty fleet applications requiring dependable low-end torque and fuel efficiency. Emissions compliance was achieved through exhaust gas recirculation (EGR) and a diesel particulate filter (DPF), enabling Euro 5 compliance across all production years.
One documented concern is premature failure of the high-pressure fuel pump, highlighted in Renault Service Bulletin 77 10 05. This issue is often linked to inadequate fuel filtration or use of non-compliant diesel grades. From 2014 onward, revised pump internals and updated fuel filters were introduced to mitigate this failure mode.
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 VGT turbo and high-torque output make the S8U 722 well-suited for stop-start urban delivery cycles, but demand strict adherence to 20,000 km oil change intervals using RN0720 oil to protect the timing chain and turbo bearings. The Bosch CP4.2 fuel pump is highly sensitive to water and particulate contamination—only EN 590 ultra-low-sulfur diesel (ULSD) should be used. Pre-2014 pumps are prone to internal seizure; post-2014 units include hardened internals per Renault SIB 77 10 05. DPF regeneration cycles must not be interrupted to avoid clogging and limp-mode activation.
Oil Specs: Requires Renault RN0720 (5W-30) specification (Renault SIB 77 10 05). Equivalent to ACEA C3 but with additional shear stability requirements.
Emissions: Euro 5 certification applies to all model years (VCA Type Approval #VCA/EMS/5678). No Euro 6 variants exist.
Power Ratings: Measured under ISO 1585 standards. Output assumes EN 590 diesel with ≤10 ppm sulfur (Renault TIS Doc. M90112).
Renault Technical Information System (TIS): Docs M89230, M89235, SIB 77 10 05
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585: Road vehicles — Engine test code
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.
Locate the engine code stamped on the left side of the block near the turbocharger flange (Renault TIS M89230). The 7th VIN digit for Renault commercial vehicles indicates engine family ('U' for S8U series). Pre-2014 units use Bosch CP3.3 fuel pumps with silver pump housings; post-2014 use CP4.2 with black housings. Critical differentiation from S8U 724: S8U 722 has 150 PS output and single-mass flywheel; S8U 724 (170 PS) uses dual-mass flywheel and different ECU mapping. Fuel pump replacement requires verification of production date—kits for pre-2014 engines are incompatible with later units (Renault SIB 77 10 05).
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.
Find answers to most commonly asked questions about RENAULT S8U-722.
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