How Does the Audi A6 Engine Work?

I'm confused about how the engine in the Audi A6 functions, can someone explain?

The Audi A6 features a powerful, yet efficient engine that utilizes a combination of direct injection and turbocharging to optimize performance. The direct injection system delivers precise amounts of fuel to each cylinder, while the turbocharger boosts air intake for a more efficient combustion process.

In simple terms, the Audi A6 engine works by converting the energy from fuel into motion. The fuel is ignited in the cylinders by a spark plug, creating small explosions that push pistons up and down, ultimately powering the car's movement.