Engine Volkswagen AAZ

The 1.9-liter diesel engine Volkswagen AAZ 1.9 TD was produced from 1991 to 1998 and was installed on many models of the concern, but is better known for the very popular Passat B3 and B4. It was these diesel engines that created a reputation for hardy and unpretentious cars for German cars.

The EA086 series also includes: JK, JP, JX, SB, 1X, 1Y, AAZ, ABL.

Specifications

Production years 1991-1998
Displacement, cc 1896
Fuel system prechambers
Power output, hp 75
Torque output, Nm 140 – 150
Cylinder block cast iron R4
Block head aluminum 8v
Cylinder bore, mm 79.5
Piston stroke, mm 95.5
Compression ratio 22.5
Features SOHC
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging yes
Recommended engine oil 5W-30
Engine oil capacity, liter 4.3
Fuel type diesel
Euro standards EURO 1/2
Fuel consumption, L/100 km (for VW Passat 1992)
— city
— highway
— combined
7.6
4.7
6.5
Engine lifespan, km ~450 000

The engine was installed on:

  • Audi 80 B4 (8C) in 1991 – 1995;
  • Seat Cordoba 1 (6K) in 1993 – 1997;
  • Seat Ibiza 2 (6K) in 1993 – 1996;
  • Seat Toledo 1 (1L) in 1991 – 1997;
  • Volkswagen Golf 3 (1H) in 1991 – 1997;
  • Volkswagen Passat B3 (31) in 1991 – 1993; Passat B4 (3A) in 1993 – 1997;
  • Volkswagen Vento 1 (1H) in 1992 – 1998.

Disadvantages of the VW AAZ engine

  • Most of all, this diesel engine is afraid of overheating, its cylinder head cracks very often;
  • In second place in terms of mass are regular fuel leaks through injection pump gaskets;
  • The timing belt, according to the regulations, is changed every 60,000 km, or if it breaks, the valves will bend;
  • After 200 – 250 thousand kilometers, the turbine often drives lubricant;
  • The main disadvantage of such motors is their age, there is nothing alive on the secondary market.

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