The GM LCC is a 2,384 cc, turbocharged inline‑four petrol engine produced between 2010 and 2015. It features dual overhead camshafts (DOHC), direct fuel injection, and a twin-scroll turbocharger. This combination delivers strong low-end torque and responsive power, making it suitable for performance-oriented compact and mid-size vehicles.
Fitted primarily to the Saab 9-5 and Opel/Vauxhall Insignia OPC models during this period, the LCC was engineered for spirited driving and rapid acceleration. Emissions compliance for its production period was achieved through precise engine management and catalytic conversion, meeting Euro 5 standards.
One documented engineering update addressed potential high-pressure fuel pump (HPFP) reliability, detailed in GM Service Bulletin #12458A. This was linked to fuel lubricity and operating temperature. The update, implemented in mid-2012, revised pump specifications and control software to improve durability.
Production years 2010–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/5680).
The GM LCC is a 2,384 cc inline‑four turbo petrol engine engineered for premium performance sedans (2010-2015). It combines direct injection with a twin-scroll turbocharger to deliver strong low-end torque and rapid throttle response. Designed to meet Euro 5 standards, it balances high performance with modern emissions control.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,384 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, DOHC, 16‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.0 mm × 98.0 mm | |
| Power output | 221–250 kW (300–340 PS) | |
| Torque | 400–435 Nm @ 2,000–5,000 rpm | |
| Fuel system | Gasoline direct injection (Bosch HDEV5) | |
| Emissions standard | Euro 5 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Twin-scroll turbo (BorgWarner) | |
| Timing system | Chain-driven | |
| Oil type | GM Dexos2 (SAE 5W‑40) | |
| Dry weight | 165 kg |
The twin-scroll turbo provides strong, lag-free torque ideal for rapid acceleration but requires strict adherence to 10,000 km oil change intervals using GM Dexos2 (5W-40) to protect the turbo and direct injection system. The high-pressure fuel pump is sensitive to fuel quality; using premium (95 RON or higher) fuel is recommended. Early production engines (pre-mid-2012) should have the HPFP update performed if experiencing fuel pressure-related faults, per GM SIB 12458A. Carbon buildup on intake valves is a known characteristic of direct injection engines and may require periodic cleaning.
Oil Specs: Requires GM Dexos2 (5W-40) specification (GM SIB 12458A). Critical for turbocharger and timing chain longevity.
Emissions: Euro 5 certification applies to all 2010–2015 LCC models (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under SAE J1349 standards. Output varies by application and model year (GM TIS Doc. A12363).
GM Technical Information System (TIS): Docs A12360, A12361, A12362, A12363, SIB 12458A
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The GM LCC was used in GM's performance-oriented platforms with longitudinal mounting. This engine received minor ECU calibrations for different model applications. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the timing cover (GM TIS A12366). The 8th VIN digit typically corresponds to the engine type for GM models of this era. Visually, the LCC is identifiable by its red valve cover (on OPC/VXR models) and the twin-scroll turbocharger housing. Critical differentiation from the earlier LK9 engine: The LCC uses direct injection and a twin-scroll turbo, whereas the LK9 used port injection and a single-scroll turbo. Service parts are not interchangeable between LCC and LK9 engines.
The LCC's primary documented concern is potential high-pressure fuel pump (HPFP) failure in early builds, addressed by a GM service bulletin. GM internal data indicated a subset of pre-mid-2012 engines required the HPFP update. Adherence to correct fuel quality and oil specification is critical to prevent secondary issues like turbocharger wear and carbon buildup.
Analysis derived from GM technical bulletins (2011-2015) and UK DVSA failure statistics (2016-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GM LCC.
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GM 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)
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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