Engine Volkswagen AJS

The 5.0-liter Volkswagen AJS or Phaeton V10 5.0 TDI engine was assembled from 2002 to 2006 and was installed only on the Phaeton executive class sedan until its first restyling. There were versions of this motor for the Touareg SUV with the index AYH, BKW, BLE, BWF.

The EA153 series also includes: AAB, AJT, ACV, AXG, BAC, BPE, AXD, AXE, AJS, AYH.


Production years 2002-2006
Displacement, cc 4921
Fuel system unit-injectors
Power output, hp 313
Torque output, Nm 750
Cylinder block aluminum V10
Block head aluminum 20v
Cylinder bore, mm 81
Piston stroke, mm 95.5
Compression ratio 18
Features no
Hydraulic lifters yes
Timing drive gears
Phase regulator no
Turbocharging biturbo
Recommended engine oil 5W-30
Engine oil capacity, liter 10.5
Fuel type diesel
Euro standards EURO 3
Fuel consumption, L/100 km (for VW Phaeton 2003)
— city
— highway
— combined
Engine lifespan, km ~260 000

The engine was installed on:

  • Volkswagen Phaeton 1 (3D) in 2002 – 2006.

Disadvantages of the VW AJS engine

  • First of all, this diesel engine is known for the rather modest resource of its turbines.
  • Also, the timing gear mechanism is not very reliable.
  • Often there are leaks on the seals of the tandem pump or unit-injectors.
  • On a long run, shedding of the coating of the cylinder walls is often found.
  • Another weak point of this unit is the air conditioner clutch and generator.

1 thought on “Engine Volkswagen AJS”

  1. Some of the disadvantages listed here are not true.
    It is stated that the timing gears on the engine can have issues with reliability, but there is no record of them failing on this engine. The timing gear mechanism on the V10 TDI is the same as on the 2.5 TDI engine used on the Transporter and R5 Touareg, and I have never seen nor heard any recounts of failures or issues with the timing mechanism on those engines.

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