Engine Porsche MDC.AB

The 2.9-liter Porsche MDC.AB bi-turbo engine has been assembled by the German concern since 2017 and is installed on the current generation of the Cayenne crossover, which is popular in many markets. A similar turbo unit is installed on charged versions of the Audi RS4 and RS5 under the DECA index.

EA839-line engines: MDC.AB, MDC.BE.


Production years since 2017
Displacement, cc 2894
Fuel system direct injection
Power output, hp 440
Torque output, Nm 550
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 84.5
Piston stroke, mm 86
Compression ratio 10.5
Features intercooler
Hydraulic lifters yes
Timing drive chain
Phase regulator on both shafts
Turbocharging bi-turbo
Recommended engine oil 0W-20
Engine oil capacity, liter 8.0
Fuel type petrol
Euro standards EURO 6
Fuel consumption, L/100 km (for Porsche Cayenne S 2019)
— city
— highway
— combined
Engine lifespan, km ~220 000

The engine was installed on:

  • Porsche Cayenne 3 (9YA) since 2017;
  • Porsche Cayenne 3 Coupe (9YB) since 2019.

Disadvantages of the Porsche MDC.AB engine

  • So far, on specialized forums, the engines of this line are not particularly scolded, but the runs are small;
  • There are a couple of complaints about electrical failures, especially the start-stop system is buggy;
  • It is also necessary to monitor the cleanliness of the radiators, they quickly become overgrown with dirt.

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