The Vauxhall M9T 680 is a 2,298 cc, inline‑four turbo‑diesel engine produced between 2016 and 2021. It features common‑rail direct injection, a variable‑geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 103 kW (140 PS) at 3,750 rpm and 340 Nm of torque at 1,750 rpm, offering strong low‑end pull for mid‑size and commercial vehicles.
Fitted to models such as the Vivaro B and Movano B, the M9T 680 was engineered for durability, fuel…
Production years 2016–2017 meet Euro 6b standards; 2018–2021 models meet Euro 6d‑TEMP (VCA UK Type Approval #VCA/EMS/9012).
The Vauxhall M9T 680 is a 2,298 cc inline‑four turbo‑diesel engineered for light commercial and MPV applications (2016–2021). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient load-carrying performance. Designed to meet Euro 6b (early) and Euro 6d‑TEMP (late) standards, it balances workhorse capability with stringent emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,298 cc | |
Fuel type | Diesel (EN 590) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 89.0 mm × 92.4 mm | |
Power output | 103 kW (140 PS) @ 3,750 rpm | |
Torque | 340 Nm @ 1,750–2,500 rpm | |
Fuel system | Bosch CP4.2 common‑rail (up to 2,000 bar) | |
Emissions standard | Euro 6b (2016–2017); Euro 6d‑TEMP (2018–2021) | |
Compression ratio | 15.5:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Single variable‑geometry turbo (BorgWarner) | |
Timing system | Chain (front‑mounted, maintenance‑free design) | |
Oil type | DEXOS2 5W‑30 | |
Dry weight | 178 kg |
The Vauxhall M9T 680 was used across Vauxhall's Vivaro B and Movano B platforms with transverse mounting and licensed from Renault. This engine received platform-specific adaptations—revised engine mounts in the Movano B and modified exhaust routing in the Vivaro B—and from 2018 received updated camshaft metallurgy and SCR/AdBlue integration for Euro 6d‑TEMP compliance, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The M9T 680's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear on the camshaft under sustained high-load conditions, with elevated incidence in pre-2018 builds. Vauxhall internal data from 2020 indicated a measurable uptick in HPFP-related warranty claims for early Euro 6b units before 120,000 km, while UK DVSA records show minimal emissions-related MOT failures due to robust aftertreatment design. Extended high-RPM operation and infrequent oil changes increase thermal stress on the cam/HPFP interface, making fuel quality and maintenance adherence critical.
Analysis derived from Vauxhall technical bulletins (2016–2021) and UK DVSA failure statistics (2018–2023). 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 M9T 680 is generally robust, but early models (2016–2017) had camshaft HPFP drive lobe wear concerns under high-load use. Post-2018 Euro 6d‑TEMP revisions improved durability significantly. With proper maintenance—using DEXOS2 oil, quality EN 590 diesel, and avoiding excessive short trips—these engines can exceed 200,000 km reliably.
Top issues include camshaft HPFP drive lobe wear (pre-2018), AdBlue system faults, DPF regeneration challenges from short trips, and EGR cooler leaks. All are documented in Vauxhall service bulletins and repair manuals.
This 2.3L turbo diesel appears in the Vivaro B (2016–2021) and Movano B (2016–2021), both in the 140 PS variant. It is a Renault-sourced engine (M9T family) used under licensing agreement and not found in non-Vauxhall Stellantis brands under this code.
Limited potential. Stage 1 ECU remaps can yield +15–20 kW (160–165 PS) but increase stress on the HPFP drive mechanism and turbo. Aggressive tuning is not recommended for commercial use due to accelerated wear. Always use EN 590 diesel with tuned maps.
In a Vivaro 2.3 CDTI 140 PS, expect ~7.8 L/100km (city), ~6.2 L/100km (highway), or ~42 mpg UK combined. Real-world mixed driving typically returns 38–45 mpg UK, depending on load and driving style.
Yes. Like all modern DOHC engines, the M9T 680 is an interference design. If the timing chain fails (rare but possible), piston-to-valve contact can cause catastrophic damage. However, the chain is designed as maintenance-free for the engine's life under normal conditions.
Vauxhall specifies DEXOS2-approved 5W‑30 synthetic oil. Never use ACEA C2/C3 or non-DEXOS2 oils, as they may not provide adequate protection for the turbo bearings and high-pressure fuel system.
Comprehensive technical documentation and regulatory references
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EUR-Lex
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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