Technical Document (Self -Dactic Program) on the Audi FSI V8 4.2 -liter engine, written in Spanish. Describe in depth the two variants of this engine: the comfort -oriented base version for the Audi Q7 (BAR letters) and the sports version of high revolutions for the Audi RS4 (BNS letters). Explains motor mechanics, the FSI direct injection system, chain distribution, oil and cooling circuits, and motor electronic management (Bosch Med 9.1).