Engine Porsche M46.20

The 3.6-liter V6 Porsche M46.20 engine was produced by a German company from 2009 to 2013 and was installed on the basic modifications of the first generation Panamera 970 before restyling. There was a version of the unit for all-wheel drive models with its own index M46.40.

Engines of M46-line: MCT.MA, M46.20, MCX.ZA, MCT.LA.


Production years 2009-2013
Displacement, cc 3605
Fuel system direct injection
Power output, hp 300
Torque output, Nm 400
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 96
Piston stroke, mm 83
Compression ratio 12.5
Features VarioCam Plus
Hydraulic lifters yes
Timing drive chain
Phase regulator on the intake shafts
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 9.0
Fuel type petrol
Euro standards EURO 5
Fuel consumption, L/100 km (for Porsche Panamera 2010)
— city
— highway
— combined
Engine lifespan, km ~240 000
Weight, kg 185

The engine was installed on:

  • Porsche Panamera 1 (970) in 2009 – 2013.

Disadvantages of the Porsche M46.20 engine

  • This unit is based on the M48 series V8 and is also prone to scuffing.
  • He was also affected by a problem with defective phase shifters on the intake shafts.
  • Plastic pipes in the cooling system regularly crack and the tank bursts.
  • The direct injection system delivers a lot of trouble: soot on the valves, failure of the injection pump.
  • The weak points of the motor include ignition coils, a pump in the tank and a water pump.

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