From 2009 to 2013, a German company produced the 3.6-liter V6 Porsche M46.20 engine, which was fitted to the first generation Panamera 970’s basic modifications before it was restyled. A variant of the unit with its own index, M46.40, was available for all-wheel drive models.
M46-line engines include MCT.MA, M46.20, MCX.ZA, and 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
The M48 series V8 is the basis for this unit, which is also prone to scuffing.
The intake shafts’ faulty phase shifters also had an impact on him.
The tank frequently bursts and the cooling system’s plastic pipes crack.
Soot on the valves and injection pump failure are two major issues with the direct injection system.
Ignition coils, a tank pump, and a water pump are the motor’s weak points.