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Self Study Programme 624 For internal use only Fourth generation Audi 3.0l V6 TFSI engine EA837 evo Audi Service Training Back Forwards Ξ Contents Audi V6 petrol engines 2004 marked the launch of the ifrst V6 engine with petrol direct The third generation 3.0l V6 TFSI engine was revised with the aim injection, the 3.2l FSI. This was followed in 2006 by the ifrst of signiifcantly improving fuel economy while retaining all the representative with the Audi valvelift system and regulated oil desirable characteristics of the previous engine. This was achieved pump. 2008 marked the rollout of the 3.0 l TFSI, the ifrst Audi V6 by making the modiifcations listed below. engine with direct injection and supercharging. It was used in a Friction in the base engine was reduced by 9 by utilising number of model series beginning with the Audi S4. an improved chain drive an optimised piston ring assembly with reduced preload The engine was once again radically reworked as the fourth force, better volumetric eiffciency and lower oil consumption generation 3.0l V6 TFSI EA837 evo . Power and torque are enhanced camshaft bearings ifnishing process unchanged, as are the dynamic power delivery. A supercharging on demand solution for the mechanical As with the previous engine, the new engine takes approximately charging system, achieved by introducing a magnetic clutch 0.3 seconds to reach full intake manifold pressure. This short time A highly lfexible fuel injection strategy allowing for a combina span makes for convincing and near instant throttle response. tion of high pressure injection and low pressure injection Activating the supercharger does not involve any loss of throttle A radically improved combustion process response either. Detailed enhancement of all components and systems relevant to fuel eiffciency In comparison with the third generation 3.0l V6 TFSI engine, the CO emissions of the Audi A8 were reduced from