The Vauxhall M9R 782 is a 2,188 cc, inline‑four turbo‑diesel engine produced between 2012 and 2019. It features common‑rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 100 kW (136 PS) and 320 Nm of torque, offering strong low‑rpm pull ideal for compact SUVs and MPVs.
Fitted to models such as the Insignia A, Zafira Tourer C, and Antara—including the 2.2 CDTi variants—the M9R 782 was engineered f…
All production years (2012–2019) meet Euro 5b standards (VCA UK Type Approval #VCA/EMS/4782).
The Vauxhall M9R 782 is a 2,188 cc inline‑four turbo‑diesel engineered for midsize and crossover models (2012–2019). It combines common‑rail direct injection with a variable‑geometry turbocharger to deliver strong low‑rpm torque and efficient cruising. Designed to meet Euro 5b, it balances performance with emissions control.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,188 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged | |
Bore × stroke | 89.5 mm × 87.0 mm | |
Power output | 100 kW (136 PS) @ 3,750 rpm | |
Torque | 320 Nm @ 1,500–2,750 rpm | |
Fuel system | Bosch CP3 common‑rail (up to 1,800 bar) | |
Emissions standard | Euro 5b | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled with electric auxiliary pump | |
Turbocharger | Variable geometry turbo (Garrett GT2052V) | |
Timing system | Chain (front‑mounted; maintenance‑free design) | |
Oil type | DEXOS2 5W‑30 (ACEA C3) | |
Dry weight | 160 kg |
The Vauxhall M9R 782 was used across Vauxhall's Insignia A, Zafira Tourer C, and Antara platforms with transverse mounting and no external licensing. This engine received platform-specific adaptations—revised engine mounts in the Zafira Tourer for NVH control and modified airbox routing in the Antara—and from mid‑2015 the Insignia A adopted updated dual‑mass flywheel hardware, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
The M9R 782's primary reliability risk is dual‑mass flywheel (DMF) wear under frequent stop‑start driving. Vauxhall internal field data (2016) indicated elevated DMF replacement rates before 100,000 km in urban fleets, while UK DVSA records show moderate DPF-related MOT advisories in high-mileage examples. Thermal cycling and aggressive clutch use make flywheel integrity and oil quality critical.
Analysis derived from Vauxhall technical bulletins (2012–2019) 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 M9R 782 offers strong torque and good refinement, but early units (2012–mid-2015) had dual-mass flywheel reliability concerns under urban use. Later revisions improved DMF durability. With proper maintenance—especially using DEXOS2 5W-30 oil and quality diesel—most engines exceed 200,000 km without major issues.
Top issues include dual-mass flywheel wear, DPF clogging from short trips, high-pressure fuel pump wear, and EGR valve sticking. DMF and HPFP problems are addressed in Vauxhall service bulletins PI0689 and TIS-M9R782-07.
The M9R 782 powered the Insignia A (2012–2017), Zafira Tourer C (2012–2018), and Antara (2012–2015) in 2.2 CDTi 136 PS form. It was not used in commercial vehicles or licensed to other manufacturers. All applications are transverse FWD layouts.
Yes. Stage 1 ECU remaps typically yield +15–20 kW (155–160 PS) safely on stock hardware. The turbo and internals tolerate moderate increases, but HPFP and DMF reliability become critical above 170 PS. Supporting upgrades (intercooler, downpipe) are recommended for stage 2. Always use EN 590 diesel if tuned.
In an Insignia 2.2 CDTi (136 PS), expect ~6.4 L/100km (city), ~4.7 L/100km (highway), or ~50 mpg UK combined. Real-world mixed driving typically returns 44–48 mpg UK. Economy suffers with short trips due to incomplete DPF regeneration cycles.
Yes. The M9R 782 is an interference engine. If the timing chain fails (extremely rare due to front-mounted design), piston-to-valve contact will cause catastrophic damage. However, the chain is designed for life-of-engine service with proper oil maintenance.
Vauxhall specifies DEXOS2 5W-30 (ACEA C3) synthetic oil. This low-SAPS formulation protects the turbo, HPFP, and emissions systems. Change intervals should not exceed 15,000 km or 12 months, especially with urban driving.
Comprehensive technical documentation and regulatory references
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VAUXHALL Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
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