Engine Audi CDRA

The 4.2-liter Audi CDRA or A8 4.2 FSI engine was produced by the concern from 2009 to 2012 and was installed only on the popular A8 sedan in the D4 body before its restyling. A similar motor on the second generation of the Touareg crossover has its own CGNA index.

The EA824 series includes: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR, CRDB, CEUA.


Production years 2009-2012
Displacement, cc 4163
Fuel system direct injection
Power output, hp 372
Torque output, Nm 445
Cylinder block aluminum V8
Block head aluminum 32v
Cylinder bore, mm 84.5
Piston stroke, mm 92.8
Compression ratio 12.5
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator on all shafts
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 7.7
Fuel type petrol
Euro standards EURO 5
Fuel consumption, L/100 km (for Audi A8 2011)
— city
— highway
— combined
Engine lifespan, km ~270 000

The engine was installed on:

  • Audi A8 D4 (4H) in 2009 – 2012.

Disadvantages of the Audi CDRA engine

  • Saving on the quality of fuel and oils here often leads to the formation of scoring;
  • Many engine problems are related to coking due to the direct injection system;
  • Around 200,000 km, timing chains can already stretch, and replacing them is difficult and expensive;
  • The plastic intake manifold often cracks and loses its tightness;
  • Another weak point of this motor is the oil separator and ignition coils.

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