Description And Operation: Overview

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

The V6 S/C 3.0L Petrol engine is a liquid cooled V6 unit featuring DI (Direct Injection), four overhead camshafts and four valves per cylinder.

The main structural components of the engine are all manufactured from aluminum alloy. The engine is built around a very stiff, lightweight, enclosed V, deep skirt cylinder block. A structural windage tray is bolted to the bottom of the cylinder block to further improve the block stiffness, minimize NVH (Noise, Vibration and Harshness) and help reduce oil foaming. To further enhance the stiffness of the lower engine structure, a heavily ribbed sump body is installed. The sump body also helps to reduce engine noise.

The engine uses a Bosch HP (High Pressure) DI fuel system with fuel pressure provided by two, cam driven HP pumps which are driven by a dedicated camshaft. Each HP pump supplies a fuel rail which in turn supplies the three injectors for that bank with fuel at a controlled pressure.

The four camshafts incorporate VCT (Variable Camshaft Timing). VCT allows the timing of the intake and exhaust valves to be adjusted independently of each other. The VCT system is controlled by the Bosch Engine Control Module (ECM) using information from CMP (Camshaft Position) sensors.

The SC (Supercharger) is located in the 'vee' of the engine and is driven from the crankshaft by a dedicated secondary auxiliary drive belt.

The engine meets EU6 emission regulations in Europe and ROW (Rest of World) and ULEV 70 emission regulations in NAS (North American Specification) markets.

The DI system, advanced piston and combustion chamber design and the SC provide improved fuel consumption and emissions.

Various engine systems are located on the engine assembly and driven directly and indirectly by the engine operation. Refer to relevant section for the further information:

Engine cooling

Refer to: Engine Cooling (V6 S/C 3.0L Petrol, Description and Operation).

Supercharger cooling

Refer to: Supercharger Cooling (V6 S/C 3.0L Petrol, Description and Operation).

Fuel system

Refer to: Fuel Tank and Lines (V6 S/C 3.0L Petrol, Description and Operation).

Accessory drive

Refer to: DESCRIPTION AND OPERATION Accessory Drive (V6 S/C 3.0L Petrol, Description and Operation).

Starting system

Refer to: Starting System (V6 S/C 3.0L Petrol, Description and Operation).

Electronic engine controls

Refer to: Electronic Engine Controls (V6 S/C 3.0L Petrol, Description and Operation).