Engine Audi AJM

The 1.9-liter 8-valve Audi AJM 1.9 TDI engine was assembled by the concern from 1998 to 2001 and was installed on such popular company models as the A4 B5, A6 C5, as well as Golf 4, Passat B5. This diesel power unit was installed on cars both longitudinally and transversely.

The EA188-1.9 series also includes: AJM, ASZ, AUY, AVB, AVF, AWX, AXB, AXC, BKC, BLS, BXE.


Production years 1998-2001
Displacement, cc 1896
Fuel system unit-injectors
Power output, hp 115
Torque output, Nm 285
Cylinder block cast iron R4
Block head aluminum 8v
Cylinder bore, mm 79.5
Piston stroke, mm 95.5
Compression ratio 18.0
Features SOHC
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging VGT
Recommended engine oil 5W-40
Engine oil capacity, liter 3.6
Fuel type diesel
Euro standards EURO 3
Fuel consumption, L/100 km (for Audi A4 2000)
— city
— highway
— combined
Engine lifespan, km ~300 000

The engine was installed on:

  • Audi A4 B5 (8D) in 1999 – 2001;
  • Audi A6 C5 (4B) in 1998 – 2001;
  • Volkswagen Bora 1 (1J) in 1998 – 2001;
  • Volkswagen Golf 4 (1J) in 1999 – 2001;
  • Volkswagen Passat B5 (3B) in 1999 – 2000.

Disadvantages of the Audi AJM engine

  • This diesel engine does not tolerate low-quality oil and its resource depends on the quality of the lubricant;
  • Bad oil contributes to the wear of hydraulic lifters or camshaft lobes;
  • The culprit of the unstable operation of the motor is usually the wedge geometry of the turbine;
  • The fastening of the unit-injectors with one bolt can loosen here and leaks appear;
  • Also, the network often discusses malfunctions associated with a tandem pump.

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