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.
Specifications
| 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 |
13.1 7.1 9.3 |
| 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.
