The Vauxhall M9T 676 is a 2,298 cc, inline‑four turbo‑diesel engine produced between 2015 and 2023. It features a high-pressure common‑rail fuel system, variable geometry turbocharger (VGT), dual overhead camshafts (DOHC), and an aluminium block with cast‑iron liners. In standard form it delivers 120 kW (163 PS) and 380 Nm of torque, with strong low‑rpm responsiveness ideal for light commercial and large MPV applications.
Fitted to models such as the Vivaro B and Movano B under a supply agreement with Renault, the M9T 676 was engineered for durability, towing capability, and urban efficiency. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR), diesel oxidation catalyst (DOC), diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue, enabling full adherence to Euro 6d-TEMP and Euro 6d standards.
One documented concern is premature wear of the high-pressure fuel pump drive mechanism, highlighted in Vauxhall Service Bulletin 16‑042. This issue is linked to insufficient lubrication during frequent cold starts and short-trip usage in stop-start urban cycles. From 2018, revised pump drive components and updated camshaft sprockets were introduced to mitigate the failure mode.
Production years 2015–2018 meet Euro 6d-TEMP standards; 2019–2023 models meet Euro 6d (VCA UK Type Approval #VCA/EMS/9125).
The Vauxhall M9T 676 is a 2,298 cc inline‑four turbo‑diesel engineered for light commercial vehicles and large MPVs (2015–2023). It combines Bosch common‑rail direct injection with a single variable‑geometry turbocharger to deliver robust low-end torque and commercial-grade reliability. Designed to meet Euro 6d-TEMP (pre-2019) and Euro 6d (post-2019) standards, it integrates advanced aftertreatment systems including DPF and SCR with AdBlue.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,298 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 89.5 mm × 91.5 mm | |
| Power output | 120 kW (163 PS) | |
| Torque | 380 Nm @ 1,500 rpm | |
| Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d-TEMP (2015–2018); Euro 6d (2019–2023) | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Single variable‑geometry turbo (Honeywell) | |
| Timing system | Chain (front‑mounted) | |
| Oil type | GM Dexos2 (SAE 5W‑30) | |
| Dry weight | 172 kg |
The aluminium block reduces weight while maintaining commercial durability but demands strict adherence to 15,000 km oil change intervals to protect the high-pressure fuel pump and turbocharger. GM Dexos2 (5W-30) oil is critical due to its low-SAPS formulation, which safeguards the DPF and SCR system. Frequent short trips without full warm-up cycles accelerate carbon buildup in the EGR and intake. Post-2018 engines include an updated fuel pump drive gear per Vauxhall SIB 16 042. Euro 6d variants require uninterrupted AdBlue top-ups and DPF regeneration to avoid limp-mode activation.
Oil Specs: Requires GM Dexos2 (5W-30) specification (Vauxhall SIB 16 042). Meets ACEA C2/C3 standards.
Emissions: Euro 6d-TEMP certification applies to 2015–2018 models; Euro 6d applies to 2019–2023 models (VCA Type Approval #VCA/EMS/9125).
Power Ratings: Measured under SAE J1349 standards. Output validated on EU5+ ultra-low-sulfur diesel (Vauxhall TIS Doc. V22210).
Vauxhall Technical Information System (TIS): Docs V22110, V22115, SIB 16 042
Renault Parts Catalogue (EPC) M9T-676
VCA Type Approval Database (VCA/EMS/9125)
SAE International: J1349 Engine Power Certification Standards
The Vauxhall M9T 676 was used across Vauxhall's Vivaro B and Movano B platforms with transverse mounting under a supply agreement with Renault. This engine received platform-specific adaptations—reinforced engine mounts in the Movano B and revised coolant routing in the Vivaro B—but retained Renault’s core architecture and service requirements. All units are mechanically identical to the Renault M9T 676 used in the Trafic III and Master III. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the crankshaft pulley (Vauxhall TIS V22180). The 7th VIN digit indicates engine family ('M' for M9T series). All M9T 676 units feature a black aluminium valve cover with “M9T” embossed. Critical differentiation from earlier G9U engines: M9T has an aluminium block, Bosch CP4.2 high-pressure pump, and AdBlue dosing unit integrated into the exhaust. Service parts for fuel pump drive gears differ before and after production date 05/2018 (Vauxhall SIB 16 042).
The M9T 676's primary reliability risk is high-pressure fuel pump drive wear, with elevated incidence in stop-start urban or delivery-cycle usage. Vauxhall internal data from 2020 indicated a measurable uptick in pump failures before 130,000 km in vehicles with frequent cold starts, while UK DVSA records show SCR/AdBlue-related MOT advisories rising in high-idle usage profiles. Incomplete warm-up cycles and incorrect oil specification accelerate wear, making adherence to Dexos2 oil and service intervals critical.
Analysis derived from Vauxhall technical bulletins (2016–2023) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL M9T-676.
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Regulation (EC) No 715/2007
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