The Vauxhall S9W 702 is a 2,998 cc, V6 turbo‑diesel engine sourced from Renault and produced between 2010 and 2018. It features common‑rail direct injection, twin variable‑geometry turbochargers (twin‑VGT), and dual overhead camshafts (DOHC) per bank. In standard form it delivered 173 kW (235 PS) and 450 Nm of torque, with higher-output variants reaching 177 kW (240 PS) and 520 Nm.
Fitted exclusively to the Vauxhall Insignia A OPC/VXR, the S9W 702 was engineered for high‑performance executive driving, offering strong motorway overtaking and refined low‑end response. Emissions compliance was achieved through exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and a diesel particulate filter (DPF), enabling Euro 5 compliance across all markets.
One documented concern is high-pressure fuel pump (HPFP) drive gear wear, highlighted in Vauxhall Service Information Bulletin 08‑15‑06. This issue is linked to marginal lubricity in certain diesel batches and exacerbated by aggressive driving or extended oil change intervals. From 2014, revised pump drive components were introduced to improve durability.
All production years (2010–2018) meet Euro 5 emissions standards (VCA UK Type Approval #VCA/EMS/5686).
The Vauxhall S9W 702 is a 2,998 cc V6 twin‑turbo diesel engineered for high‑performance executive models (2010–2018). It combines Bosch common‑rail injection with twin variable‑geometry turbochargers to deliver strong low‑ and mid‑range torque and refined highway performance. Designed to meet Euro 5 standards, it balances sporty output with emissions control and fuel economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,998 cc | |
| Fuel type | Diesel | |
| Configuration | V6, DOHC, 24‑valve | |
| Aspiration | Twin-turbocharged | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 173–177 kW (235–240 PS) | |
| Torque | 450–520 Nm @ 1,750–3,000 rpm | |
| Fuel system | Bosch CP3.4 common‑rail (up to 1,800 bar) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 15.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Twin variable‑geometry turbos (Garrett) | |
| Timing system | Chain (front‑mounted, dual chains) | |
| Oil type | DEXOS2 (SAE 5W‑30) | |
| Dry weight | 215 kg |
The twin-VGT turbo system provides strong low-end torque and seamless mid-range pull ideal for performance driving but demands strict adherence to 15,000 km or 12-month oil change intervals to protect the timing chains and fuel system. DEXOS2 (5W-30) oil is critical due to its low-SAPS formulation, which safeguards the DPF and turbo bearings. Frequent short trips increase soot loading; occasional highway runs (≥60 km/h for 15+ minutes) are recommended to trigger passive DPF regeneration. The Bosch CP3.4 fuel pump demands ultra-low-sulfur diesel (EN 590) with adequate lubricity—avoid biodiesel blends above B7. Pre-2014 engines should be inspected for HPFP drive gear wear per SIB 08 15 06.
Oil Specs: Requires DEXOS2 (5W-30) specification (Vauxhall Owner Manual 2010+). Meets ACEA C3 and API SN standards.
Emissions: Euro 5 certification applies to all 2010–2018 models (VCA Type Approval #VCA/EMS/5686). Confirmed via NEDC testing.
Power Ratings: Measured under UN ECE R85. Output verified on NEDC-compliant dyno per Vauxhall PT‑2022.
Vauxhall Technical Information System (TIS): Docs V9212, V9215, SIB 08 15 06
VCA Type Approval Database (VCA/EMS/5686)
EU Regulation (EC) No 715/2007 (Euro 5)
The Vauxhall S9W 702 was used exclusively in the Vauxhall Insignia A OPC/VXR platform with longitudinal mounting and sourced under license from Renault. This engine received performance-specific adaptations—including reinforced engine mounts, high-flow intercoolers, and unique ECU calibration—and from 2014 the HPFP drive gear was updated to address wear concerns, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil filler neck (Vauxhall TIS V9218). The 7th VIN digit indicates engine family ('P' for S9W series). All units feature black plastic cam covers with integrated coil packs and a visible DPF in the exhaust system. Critical differentiation from other V6 diesels: S9W 702 is a Renault-sourced dCi unit with twin Garrett VGT turbos and Bosch CP3.4 pump. Service parts for HPFP drive differ pre- and post-2014 per SIB 08 15 06.
The S9W 702's primary reliability risk is high-pressure fuel pump drive gear wear, with elevated incidence in pre‑2014 Insignia OPC/VXR models under aggressive or high‑load conditions. Vauxhall internal data from 2017 indicated a notable uptick in HPFP replacements before 120,000 km, while UK DVSA records show minimal DPF‑related MOT failures due to robust regeneration logic. Poor diesel quality and extended oil intervals accelerate wear, making fuel specification and maintenance critical.
Analysis derived from Vauxhall technical bulletins (2010–2018) and UK DVSA failure statistics (2011–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL S9W-702.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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