From 2010 to 2017, the company assembled the Porsche M55.02, a 3.6-liter VR6 gasoline engine, and installed it in the rear of the 958’s base Cayenne modifications. This motor, which is part of the EA390 series, shares many characteristics with the VW unit under the CMTA index.
M55-line engines: M55.01, M55.02.
Specifications
| Production years | 2010-2017 |
| Displacement, cc | 3598 |
| Fuel system | direct injection |
| Power output, hp | 300 |
| Torque output, Nm | 400 |
| Cylinder block | cast iron VR6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 96.4 |
| Compression ratio | 11.7 |
| Features | VarioRam |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at intake and exhaust |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.9 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Porsche Cayenne 2012) — city — highway — combined |
15.9 8.4 11.2 |
| Engine lifespan, km | ~260 000 |
| Weight, kg | 177 |
The engine was installed on:
- Porsche Cayenne 2 (92A) in 2010 – 2017.
Disadvantages of the Porsche M55.02 engine
The unit has direct injection, and deposits on the intake valves are a common problem.
The cooling system’s heavy reliance on plastic parts is another vulnerability.
The membrane of the PCV valve is frequently ripped, and its resource is not very high.
Timing chains typically need to be replaced closer to 200,000 kilometers.
Additionally, the tank’s fuel pump, ignition coils, and pump frequently malfunction.