Volkswagen Golf 4 1.9 TDi Engine (ASZ)

The Volkswagen ASZ engine is a 1.9-liter, 4-cylinder turbocharged direct injection (TDI) diesel engine, producing around 130 hp and 310 Nm of torque. It features a SOHC 8-valve configuration, direct injection with PD unit injectors, and is known for its strong low-end torque, fuel efficiency, and reliability. This engine was commonly found in models like the VW Golf Mk4, Bora, Passat B5.5, and Audi A3 (8L).