The 4.5-liter Porsche M48.00 gasoline engine was produced by the company from 2002 to 2007 and was installed on the Cayenne crossover in the back of the 955 or the pre-styling version of the first generation. Such an engine is known for frequent cylinder scuffing due to poor Lokasil coating.
Engines of M48-line: M48.00, M48.50, M48.01, M48.51, M48.70.
Specifications
| Production years | 2002-2007 |
| Displacement, cc | 4511 |
| Fuel system | distributed injection |
| Power output, hp | 340 |
| Torque output, Nm | 420 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 93 |
| Piston stroke, mm | 83 |
| Compression ratio | 11.5 |
| Features | VarioRam |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on the intake shafts |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 8.5 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Porsche Cayenne 2005) — city — highway — combined |
20.9 11.2 14.9 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 227 |
The engine was installed on:
- Porsche Cayenne 1 (9PA) in 2002 – 2007.
Disadvantages of the Porsche M48.00 engine
- The most well-known problem of the unit is the formation of scoring in the cylinders.
- Causes of scuffing are: bad fuel or oil and driving on a cold engine.
- Very often, antifreeze leaks occur due to burst tubes of the cooling system.
- Ignition coils are distinguished by a low resource, and a breakdown of one destroys the rest.
- The weak points of this engine also include the starter, thermostat and water pump.
