Engine Audi CRDB

The 4.0-liter Audi CRDB or RS7 4.0 TFSI engine was produced by the company from 2013 to 2018 and was installed on such charged models of the German concern as the RS6 or RS7 in the C7 body. There were even more powerful Performance modifications with a 605-horsepower CWUC unit.

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


Production years 2013-2018
Displacement, cc 3993
Fuel system direct injection
Power output, hp 560
Torque output, Nm 700
Cylinder block aluminum V8
Block head aluminum 32v
Cylinder bore, mm 84.5
Piston stroke, mm 89
Compression ratio 9.3
Features AVS
Hydraulic lifters yes
Timing drive chain
Phase regulator on all shafts
Turbocharging Bi-Turbo
Recommended engine oil 5W-30
Engine oil capacity, liter 8.3
Fuel type petrol
Euro standards EURO 5
Fuel consumption, L/100 km (for Audi RS7 2015)
— city
— highway
— combined
Engine lifespan, km ~220 000

The engine was installed on:

  • Audi RS6 C7 (4G) in 2013 – 2018;
  • Audi RS7 C7 (4G) in 2013 – 2017.

Disadvantages of the Audi CRDB engine

  • Turbo engines of this series are very afraid of overheating, watch the cooling system;
  • From low-quality gasoline or oil in the engine cylinders, scoring quickly forms;
  • Saving on lubrication reduces the resource of turbines, sometimes they serve less than 100,000 km;
  • Quite often, there are leaks in the injection pump, and the fuel from them gets into the oil;
  • The weak points of the motor include active supports and upper timing chain tensioners.

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