The GM LZF is a 1,399 cc, inline — three turbo — petrol engine produced between 2010 and 2016. It features direct fuel injection, a variable geometry turbocharger (VGT), and dual overhead camshafts, delivering strong low — end torque for urban driving. The turbocharger enables responsive acceleration while maintaining compact packaging and improved fuel efficiency.
Fitted to models such as the Opel Astra J, Vauxhall Corsa D, and Chevrolet Spark, the LZF was engineered f…
Production years 2010–2014 meet Euro 5 standards; 2015–2016 models may have Euro 6 compliance depending on market .
The GM LZF is a 1,399 cc inline-three turbo-petrol engineered for subcompact and compact models (2010-2016). It combines direct fuel injection with a single variable-geometry turbocharger to deliver responsive low-RPM torque and efficient city driving. Designed to meet Euro 5 (and some market-specific Euro 6) standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,399 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 79.2 mm | |
Power output | 92–103 kW (125–140 PS) | |
Torque | 200–230 Nm @ 1,500–4,500 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 5 (pre-2015); Euro 6 depending on market | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1244V) | |
Timing system | Chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 112 kg |
The GM LZF was used across GM's Astra J/Corsa D platforms with transverse mounting and licensed to Holden for Australian-market applications. This engine received platform-specific adaptations-reinforced mounts in the Astra J and optimized intake runners in the Corsa D-and from 2013 the facelifted Astra J adopted the LZF-T variant with revised piston crowns and ECU calibration, creating interchange limits. Partnerships allowed Holden's Barina models to leverage GM's direct-injection architecture. All adaptations are documented in OEM technical bulletins.
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Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The LZF delivers good power and efficiency for its size, but early models (2010-2012) suffer from severe intake valve carbon buildup, leading to misfires and power loss. Later revisions (post-2013) improved piston design and ECU calibration to reduce sooting. With strict maintenance—especially regular induction cleaning and oil changes using Dexos1 Gen 2—it can be reliable beyond 150,000 km.
The biggest issues are intake valve carbon buildup causing misfires, turbo actuator sticking due to heat/soot, and GPF restriction from frequent short trips. Oil leaks from the valve cover gasket and occasional PCV valve failure are also documented. These are well-documented in GM service bulletins, particularly SIB 14 06 01 007.
This 1.4L turbo-petrol was used across GM's European lineup. It appeared in the Opel Astra J, Vauxhall Corsa D, and Chevrolet Spark. Holden also used it in the Barina from 2013-2016. Most were Euro 5 compliant until 2015, when Euro 6 versions entered production depending on market.
Aftermarket ECU tuning is common on the LZF 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.
Very good for a turbo-petrol. In an Astra J or Corsa D, typical consumption is ~6.5 L/100km (city) and ~4.8 L/100km (highway), or about 55 mpg UK combined. Expect 48-58 mpg (UK) on mixed roads for a healthy unit. Economy improves significantly with smooth driving and avoidance of frequent cold starts.
Yes. The LZF is an interference engine. If the timing chain fails, pistons can strike open valves, resulting in catastrophic engine damage. Regular inspection of the timing chain tensioner and guides is essential, though chain failure is rare compared to carbon buildup risks.
GM specifies a 5W-30 synthetic oil meeting GM Dexos1 Gen 2 specification. Always use a quality oil designed for direct-injection turbos and change it at 10,000 km intervals to prevent carbon buildup and protect the GPF and turbo. Using incorrect oil accelerates valve coking and emission system degradation.
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