Description And Operation: Engine: Overview

The Ingenium I4 2.0L Diesel is an in line four cylinder, turbocharged engine which employs advanced modular design principles. The Ingenium I4 2.0L Diesel engine has the following power and torque outputs: 163 PS/380 Nm, 180 PS/430 Nm and 240 PS/500 Nm.

The engine features a split cooling system, a Powertrain Control Module (PCM) controlled electric thermostat and a fully variable coolant pump. The variable coolant pump enables engine coolant to remain static in the engine to maximize heat transfer during warm up. When engine coolant flow is required for engine cooling, the minimum flow is provided by the variable coolant pump. The split cooling thermostat housing maintains static coolant in the cylinder block while allowing engine coolant to circulate through cross flow channels in the cylinder head. Parasitic losses are also optimized when the variable coolant pump is delivering reduced flow.

An electronically controlled variable flow oil pump with integral vacuum pump matches its flow rate according to engine speed, load and temperature. Oil flow to the piston cooling oil jets is solenoid controlled and operates only when needed.

Variable Camshaft Timing (VCT) on the exhaust camshaft enables faster catalytic converter heating, minimizing harmful emissions during the critical warm up phase. The VCT system is controlled by the PCM using information from Camshaft Position (CMP) sensor. The engine uses a Bosch High Pressure (HP) Direct Injection (DI), common rail fuel system with fuel pressure provided by a high pressure fuel pump which is chain driven from the crankshaft. The high pressure fuel pump supplies the fuel rail, then the fuel rail supplies the four fuel injectors with fuel at a controlled pressure. The high pressure fuel system provides low noise, high efficiency and excellent fuel mixture formation within the combustion chambers.

The engine incorporates a sophisticated Exhaust Gas Recirculation (EGR) system which further assists to ensure emissions are below the limits set by EU6 and LEV160 regulations. The engine meets EU6 emission regulations in Europe and Rest of World (ROW). EU6 and LEV160 compliance is achieved using Selective Catalyst Reduction (SCR).

There are many dynamic and static seals on the engine. All seals and gaskets shall be considered single use and if they are removed shall be replaced.

There are two type of boosting system available for this engine:

• The Ingenium I4 2.0L Diesel 163 PS and 180 PS engines have a Variable Geometry Turbocharger (VGT).
• The Ingenium I4 2.0L Diesel 240 PS engine has a VGT as the HP turbocharger and a fixed vane turbocharger as the Low Pressure (LP) turbocharger.

Various engine systems are located on the engine assembly and driven directly and indirectly by the engine operation.

Refer to relevant article for the further information:

• Engine cooling For additional information, Refer to: ENGINE COOLING
• Fuel system For additional information, Refer to: FUEL TANK AND LINES - INGENIUM I4 2.0L DIESEL
• Air intake system For additional information, refer to: INTAKE AIR DISTRIBUTION AND FILTERING
• Engine emission control For additional information, refer to: ENGINE EMISSION CONTROL
• Accessory drive For additional information, refer to: ACCESSORY DRIVE
• Starting system For additional information, refer to: STARTING SYSTEM
• Turbocharger For additional information, Refer to: TURBOCHARGER
• Electronic engine controls For additional information, refer to: ELECTRONIC ENGINE CONTROLS