The Volkswagen D24 engine is a 2.4-litre inline-six-cylinder (R6/I6), naturally aspirated diesel engine, formerly manufactured by Volkswagen Group from 1978 to 1995.Subsequent forced induction variants of this engine were also available as the Volkswagen D24T engine with a turbocharger, and a turbo intercooled version, the Volkswagen D24TIC engine. These turbocharged variants resulted in higher power and torque outputs.