Engine Jaguar AJ30

The Jaguar AJ30 3.0-liter gasoline engine was produced by the company from 1999 to 2011 and was installed on such popular models of the British concern as the X-Type, S-Type or XF. This power unit belonged to the Duratec V6 family and, in addition to the Jaguars, was installed on the Lincoln LS.

AJ-V6 series: AJ20, AJ25, AJ30.


Production years 1999-2011
Displacement, cc 2967
Fuel system distributed injection
Power output, hp 230 – 240
Torque output, Nm 280 – 300
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 89
Piston stroke, mm 79.5
Compression ratio 10.5
Features DAMB
Hydraulic lifters no
Timing drive chain
Phase regulator on the intake shaft
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 6.5
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Jaguar S-Type 2005)
— city
— highway
— combined
Engine lifespan, km ~370 000
Weight, kg 175

The engine was installed on:

  • Jaguar S-Type 1 (X200) in 1999 – 2007;
  • Jaguar X-Type 1 (X400) in 2001 – 2009;
  • Jaguar XF 1 (X250) in 2008 – 2011;
  • Jaguar XJ 7 (X350) in 2003 – 2009;
  • Lincoln LS in 1999 – 2006.

Disadvantages of the Jaguar AJ30 engine

  • This motor is highly reliable, but spare parts for it are expensive.
  • The main problems are associated with suction in the intake due to cracked gaskets.
  • Also, the electric drive for changing the intake geometry is characterized by low reliability.
  • If you do not regularly clean the crankcase ventilation valve here, then the oil will press from all the cracks.
  • On runs over 200 thousand km, lubricant consumption may appear due to the occurrence of rings.

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