Engine Audi BTR

The 4.2-liter diesel engine Audi BTR or Q7 4.2 TDI was produced from 2007 to 2009 and was installed only on the first generation of the popular Q7 crossover before its restyling. A similar diesel engine under the hood of A8 sedans in the back of D3 has its own BVN index.

The EA898 series also includes: AKF, ASE, BTR, CKDA, CCGA, CZAC, DHVA.


Production years 2007-2009
Displacement, cc 4134
Fuel system Common Rail
Power output, hp 326
Torque output, Nm 760
Cylinder block cast iron V8
Block head aluminum 32v
Cylinder bore, mm 83
Piston stroke, mm 95.5
Compression ratio 16.4
Features intercooler
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging Garrett GTB1749LVK
Recommended engine oil 5W-30
Engine oil capacity, liter 9.5
Fuel type diesel
Euro standards EURO 4
Fuel consumption, L/100 km (for Audi Q7 2008)
— city
— highway
— combined
Engine lifespan, km ~350 000
Weight, kg 255

The engine was installed on:

  • Audi Q7 1 (4L) in 2007 – 2009.

Disadvantages of the Audi BTR engine

  • This is a very reliable diesel engine and problems with it only occur at high mileage;
  • A modern fuel system with piezo injectors does not tolerate bad fuel;
  • Saving on lubrication here greatly reduces the life of turbines and hydraulic lifters;
  • After 200 – 250 thousand km, timing chain replacement may be required.

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