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The new 1.8 litre 4V TFSI engine belongs to the a new technology optimised R4 engine generation. It will replace today s MPI engines and supersede the old engine family EA 113 . The new engine generation EA 888 will be used throughout the VW Group in many different products. The first application is in the Audi A3. This Self Study Programme describes the new engine, which is installed transversely in the Audi A3. In the case of longitudinally installed engines or when the engine is installed in other vehicles of the VW Group, it may be necessary to modify the technical specifications to suit each vehicle. The focus of development work was on achieving the Characteristic features following project goals High/low end torque Cutting unit costs by implementing High power potential new standards in technical concepts and production technologies High fuel efficiency a common parts strategy Excellent spontaneity and elasticity Compliance with miscelleneous vehicle specific requirements High level of comfort transverse and longitudinal installation statutory requirements, such as pedestrian safety and footwell intrusion Technology compact design acoustics improved efficiency mechanical and thermodynamic Compliance with applicable exhaust emission, noise emission and environmental regulations Ease of servicing Footwell intrusion The intrusion of objects into the footwell during an accident. Table of contents Introduction .4 Engine mechanicals Crankshaft assembly . 8 Crankcase breather .12 Crankcase breather system . .13 Cylinder head . .14 Chain drive . .18 Drive ancillary units/components . .23 Oil circulation system Lubrication system .24 Oil pump . .26 Oil cleaner and oil cooler . .27 Cooling system Engine cooling system . .29 Coolant pump . .30 Air circulation system Intake manifold module .32 Air supply . .34 Evaporation system .35 Vacuum supply .36 Fuel s