The 1.8-liter Volkswagen ADZ 8v engine was produced by the concern from 1994 to 1999 and was installed on the third generation of the popular Golf, Passat B4 and a number of cars from Seat. This mono-injection power unit is essentially an updated version of the ABS motor.
|Fuel system||single injection|
|Power output, hp||90|
|Torque output, Nm||145|
|Cylinder block||cast iron R4|
|Block head||aluminum 8v|
|Cylinder bore, mm||81|
|Piston stroke, mm||86.4|
|Recommended engine oil||5W-40|
|Engine oil capacity, liter||3.8|
|Euro standards||EURO 1|
|Fuel consumption, L/100 km (for VW Passat B4 1995)
|Engine lifespan, km||~320 000|
The engine was installed on:
- Volkswagen Golf 3 (1H) in 1994 – 1999;
- Volkswagen Passat B4 (3A) in 1994 – 1996;
- Volkswagen Polo 3 (6N) in 1997 – 1999;
- Volkswagen Vento 1 (1H) in 1994 – 1998;
- Seat Cordoba 1 (6K) in 1994 – 1999;
- Seat Ibiza 2 (6K) in 1994 – 1996;
- Seat Toledo 1 (1L) in 1994 – 1999.
Disadvantages of the VW ADZ engine
- The main problems for owners are caused by failures in the operation of the mono-injection system.
- Regularly here you have to deal with leaks of lubricant or coolant.
- Due to throttle contamination or air leaks, engine speed often floats.
- More often than others, the lambda probe and the antifreeze temperature sensor fail here.
- By 200,000 km, rings or caps usually wear out and oil consumption appears.