The Vauxhall M9R 630 is a 1,995 cc, inline‑four turbocharged diesel engine produced between 2006 and 2018 under licence from Renault. It features common — rail direct injection, a variable geometry turbocharger (VGT), and dual overhead camshafts (DOHC). In standard form it delivers 96 kW (130 PS) and 300 Nm of torque, offering strong low — end response and relaxed motorway cruising.
Fitted to mid — size models such as the Insignia A, Zafira Tourer, and Signum—including the…
Production years 2006–2009 meet Euro 4 standards; 2010–2014 meet Euro 5; 2015–2018 models meet Euro 6 .
The Vauxhall M9R 630 is a 1,995 cc inline‑four turbocharged diesel engineered for mid-size sedans, estates, and MPVs (2006–2018). It combines Bosch common-rail injection with a single variable-geometry turbocharger to deliver responsive low-RPM torque and efficient highway cruising. Designed to meet Euro 4 through Euro 6 emissions standards, it balances performance with urban compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,995 cc | |
Fuel type | Diesel | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Turbocharged (VGT) | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 96 kW (130 PS) | |
Torque | 300 Nm @ 1,750–2,500 rpm | |
Fuel system | Bosch CP3 common-rail (up to 1,600 bar) | |
Emissions standard | Euro 4 (2006–2009); Euro 5 (2010–2014); Euro 6 (2015–2018) | |
Compression ratio | 15.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | Single variable-geometry turbo (Garrett) | |
Timing system | Chain (front‑mounted; low‑wear design) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 160 kg |
The Vauxhall M9R 630 was used across Vauxhall's Insignia A, Zafira Tourer, and Signum platforms with transverse mounting under licence from Renault. This engine received platform-specific adaptations—revised engine mounts in the Insignia for NVH control and unique exhaust manifolds in the Zafira—and from 2015 the addition of a selective catalytic reduction (SCR) system on Euro 6 variants, creating minor ECU and exhaust differences. All adaptations are documented in OEM technical bulletins.
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The M9R 630 offers strong torque and good refinement, but pre-2012 models are prone to high-pressure fuel pump coupling failures. Post-2012 Euro 5/6 variants are more robust. With regular oil changes (using GM dexos2) and high-quality EN 590 diesel, it can be dependable beyond 180,000 km. Avoid short-trip driving to support DPF health.
Top issues include high-pressure fuel pump coupling failure (pre-2012), DPF clogging, EGR cooler fouling, and minor oil leaks from cam/sump covers. These are documented in Vauxhall service bulletins TIS‑M9R‑09 and TIS‑M9R‑10. Most are manageable with proactive maintenance and quality fuel.
The M9R 630 powered the Insignia A (2008–2017), Zafira Tourer (2006–2018), and Signum (2006–2008) in 2.0 CDTI 130 variants. Emissions compliance evolved from Euro 4 (2006–2009) to Euro 6 (2015–2018) with SCR/AdBlue introduced in later models.
Aftermarket ECU tuning is common on the M9R-630 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In an Insignia 2.0 CDTI 130, expect ~5.1 L/100km (highway) and ~6.9 L/100km (city), or about 51 mpg UK combined. Real-world mixed driving typically returns 47–53 mpg (UK), depending on driving style, DPF status, and tyre pressure.
Yes. The M9R 630 is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic damage. However, the front-mounted chain is robust—failures are rare with proper oil maintenance.
Vauxhall specifies GM dexos2 5W-30 synthetic oil. This formulation protects turbo bearings and meets low-SAPS requirements for emissions systems. Change every 15,000 km or annually, whichever comes first.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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