The Vauxhall M9T 876 is a 1,598 cc, inline‑four turbocharged diesel engine produced between 2016 and 2021. It features a DOHC 16‑valve layout, common‑rail direct injection, and a fixed‑geometry turbocharger, delivering 88 kW (120 PS) and 260 Nm of torque. Exhaust gas recirculation (EGR) and a diesel particulate filter (DPF) enable urban drivability while meeting stringent emissions targets.
Fitted to models such as the Corsa E and Crossland—including the 1.6 CDTI variants—the M9T 876 was engineered under licence from Renault for compact applications requiring fuel efficiency and low-end responsiveness. Emissions compliance was achieved through a close‑coupled oxidation catalyst, cooled EGR, and a wall‑flow DPF, allowing full Euro 6b compliance from launch.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the camshaft, highlighted in Vauxhall Service Bulletin 12‑069. This is often linked to extended oil change intervals or use of non‑dexos2‑approved lubricants. In 2019, Vauxhall introduced a revised camshaft surface treatment and updated HPFP calibration to mitigate wear.
Production years 2016–2021 meet Euro 6b standards across all markets (VCA UK Type Approval #VCA/EMS/8321).
The Vauxhall M9T 876 is a 1,598 cc inline‑four turbocharged diesel engineered for subcompact and compact models (2016–2021). It combines common‑rail direct injection with a fixed‑geometry turbocharger to deliver adequate low‑rpm torque and high fuel efficiency. Designed to meet Euro 6b emissions standards, it balances urban economy with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,598 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 76.0 mm × 88.0 mm | |
| Power output | 88 kW (120 PS) @ 4,000 rpm | |
| Torque | 260 Nm @ 1,500–2,500 rpm | |
| Fuel system | Bosch CP3.4 common‑rail (up to 1,800 bar) | |
| Emissions standard | Euro 6b | |
| Compression ratio | 16.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry turbo (Mitsubishi TD025) | |
| Timing system | Chain (front‑mounted, maintenance‑free design) | |
| Oil type | GM dexos2 (SAE 5W‑30) | |
| Dry weight | 128 kg |
The fixed-geometry turbo provides predictable low-end response suited to city driving but requires strict adherence to 15,000 km or 12-month oil change intervals using GM dexos2 (5W-30) to protect the camshaft HPFP drive lobe and turbo bearing. The Bosch CP3.4 fuel pump demands EN 590-compliant ultra-low-sulfur diesel (ULSD) to prevent premature wear. Short-trip driving may accelerate DPF and EGR clogging. Post-2019 engines include a nitrided camshaft per Vauxhall SIB 12 069 to improve HPFP drive durability.
Oil Specs: Requires GM dexos2 (5W-30) specification (Vauxhall SIB 12 069). Equivalent to ACEA C3 but with GM-specific additive limits.
Emissions: Euro 6b certification applies to all 2016–2021 models (VCA Type Approval #VCA/EMS/8321). No market-specific deviations.
Power Ratings: Measured under SAE J1349 standards. Full 88 kW output requires EN 590 diesel fuel quality (Vauxhall TIS Doc. V70200).
Vauxhall Technical Information System (TIS): Docs V70110, V70115, V70200, SIB 12 069
VCA Type Approval Database (VCA/EMS/8321)
SAE International: J1349 Engine Power Certification Standards
The Vauxhall M9T 876 was used across Vauxhall's Corsa E and Crossland platforms with transverse mounting under licence from Renault. This engine received platform-specific adaptations—revised engine mounts in the Crossland for NVH refinement and compact exhaust manifolds in the Corsa E—and from 2019 the Corsa LCI adopted updated camshaft hardware, creating minor service part distinctions. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block near the timing cover (Vauxhall TIS V70130). The 7th VIN digit indicates engine family ('M' for M9T series). All M9T 876 units feature a black plastic cam cover with '1.6 CDTI' badge. Critical differentiation from petrol 1.6: M9T 876 has a visible turbocharger, DPF, and high-pressure fuel rail. Camshaft part numbers changed in 2019—pre-2019 camshafts (GM 55599870) are not interchangeable with post-2019 units (GM 55599871) due to surface treatment updates (Vauxhall SIB 12 069).
The M9T 876's primary reliability risk is camshaft HPFP drive lobe wear in early builds, with elevated incidence in vehicles using non‑dexos2 oil or extended service intervals. Vauxhall internal data from 2020 indicated a measurable increase in camshaft‑related warranty claims before 80,000 km, while UK DVSA records show no significant DPF‑related MOT failures linked to this engine. Oil quality and change discipline make camshaft longevity critical.
Analysis derived from Vauxhall technical bulletins (2016–2020) and UK DVSA failure statistics (2018–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about VAUXHALL M9T-876.
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Regulation (EC) No 715/2007
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