TDI (Turbocharged Direct Injection) is Volkswagen Group's term for its current common rail direct injection turbodiesel engine range that have an intercooler in addition to the turbo compressor.
TDI engines are used in motor vehicles sold by the Audi, Volkswagen, SEAT and Skoda marques, as well as boat engines sold by in Volkswagen Marine and industrial engines sold by Volkswagen Industrial Motor.
The first TDI engine, a straight-five engine, was produced for the 1989 Audi 100 TDI sedan. In 199...