Audi A5 1.8 Turbocharged Petrol Engine (APP)

The “APP engine” refers to a specific 1.8L, 20-valve, turbocharged inline-four petrol engine from Volkswagen/Audi, producing around 180 horsepower and 235 Nm of torque. It features DOHC, a water-cooled turbocharger, a displacement of 1781cc, and is powered by a timing belt. This engine code is often found in Audi A3, TT, and Seat models from the late 1990s and early 2000s.