From 2012 to 2014, the company produced the 4.2-liter Porsche MCU.DB diesel engine, which was mounted on the Cayenne in the rear of the 958 before a new model with the MCU.DC index took its place. This motor is similar to the CKDA power unit and is part of the EA898 diesel series.
M05.9E, MCT.BA, MCR.CC, and MCU.DB are Porsche diesel engines.
Specifications
| Production years | 2012-2014 |
| Displacement, cc | 4134 |
| Fuel system | Common Rail |
| Power output, hp | 382 |
| Torque output, Nm | 850 |
| Cylinder block | cast iron V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 95.5 |
| Compression ratio | 16.5 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | GTB1749VK + GTB1749VZ |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 9.4 |
| Fuel type | diesel |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Porsche Cayenne S Diesel 2012) — city — highway — combined |
10.1 7.3 8.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 255 |
The engine was installed on:
- Porsche Cayenne 2 (92A) in 2012 – 2014.
Disadvantages of the Porsche MCU.DB engine
Although the diesel is dependable, poor fuel is not tolerated by the piezo injector CR system;
The motor’s weak point is thought to be a small turbine resource, occasionally less than 100,000 kilometers;
Additionally, they complain about frequent lubricant and antifreeze leaks on specialized forums;
Timing chains frequently stretch after 250,000 kilometers, and replacing them is highly costly;
Contamination of the intake, particulate filter, and EGR valve is a major problem here.