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 for refined torque delivery and motorway stability. Emissions compliance was achieved through cooled exhaust gas recirculation (EGR), a diesel oxidation catalyst (DOC), and a diesel particulate filter (DPF), enabling Euro 5b compliance across all production years.
One documented concern is dual‑mass flywheel (DMF) degradation under frequent stop‑start use, highlighted in Vauxhall Service Bulletin PI0689. This is often linked to thermal fatigue and torsional stress during repeated clutch engagement. From mid‑2015, Vauxhall introduced a revised DMF design with improved heat shielding and damping characteristics.
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 VGT turbo provides strong low-RPM torque ideal for urban and highway driving but requires strict adherence to 15,000 km oil change intervals using DEXOS2 5W-30 to protect the high-pressure fuel pump and turbo bearings. Ultra-low-sulfur diesel (EN 590) is mandatory; biodiesel blends above B7 are not recommended. Frequent stop-start use accelerates dual-mass flywheel wear—evident as judder on take-off—prompting replacement per Vauxhall SIB PI0689. The front-mounted timing chain is considered lifetime but relies on clean oil; sludge from neglected changes may impair tensioner function. DPF regeneration cycles should not be interrupted during highway driving to prevent clogging.
Oil Specs: Requires DEXOS2 5W-30 (ACEA C3) specification (Vauxhall Owner's Manual 2013).
Emissions: Euro 5b certification applies to all 2012–2019 M9R 782 engines (VCA Type Approval #VCA/EMS/4782).
Power Ratings: Measured under SAE J1349 standards. Output assumes EN 590 diesel fuel (Vauxhall TIS Doc. TIS-M9R782-04).
Vauxhall Technical Information System (TIS): Docs TIS-M9R782-01 to TIS-M9R782-04, SIB PI0689
VCA Type Approval Database (VCA/EMS/4782)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on the front timing cover near the crank pulley (Vauxhall TIS TIS-M9R782-06). The 7th VIN digit for M9R applications is 'M'. All units feature black valve covers with integrated coil packs and a Garrett GT2052V turbo with VGT actuator. Critical differentiation from later 2.0 BiTurbo (G9U): M9R 782 uses a single VGT turbo with Bosch CP3 HPFP and lacks AdBlue SCR. Service parts for dual-mass flywheel (pre- and post-06/2015) are not interchangeable due to damping material changes per Vauxhall SIB PI0689.
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.
Find answers to most commonly asked questions about VAUXHALL M9R-782.
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VAUXHALL Official Site
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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)
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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
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VCA Certification Portal
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