In terms of powertrain, the now lighter Porsche Cayenne Diesel is powered by a direct-injected 3.0 liter V6 turbo engine that provides up to 240 hp (176 kW) of output and 406 lb-ft (530 Nm) of torque. It is exclusively mated to an eight-speed Tiptronic S transmission, which has been re-programmed specifically for diesel technology.
However, there would be owners who would be contented with this amount of power emanating from their Cayenne. This RUF Automobile GmbH offers two performance upgrades for them. Upgrade 1 entails increasing the power by optimizing the electronic engine management system, resulting to new dynamic figures of 288 hp (212 kW) of max output and 428 lb-ft (580 Nm) of max torque.
Upgrade 1, including installation, is available at EUR3,850 plus VAT. Upgrade 2, meanwhile, entails the integration of modified turbocharger and the optimization of the engine management system. This option hikes the max output 310 hp (228 kW) and the peak torque to 465 lb-ft (630 Nm).
Upgrade 2, including installation, is available at EUR7,300 plus VAT. On the other hand, since the diesel engine has a narrower speed range, the gearshift points are different compared to its petrol counterpart. To better adapt the eight-speed Tiptronic S transmission on the Porsche Cayenne, this gearbox comes with gearshift points customized to the user's driving style and route profile.
This allows the driver to shift gears manually using a toggle lever on the steering wheel. A driver could also shift gears by momentarily tipping the selector lever in the manual gearshift position. For a more seamless and reliable transmission of torque from the V6 engine, the Tiptronic S transmission's converter lock-up clutch features two friction discs.
When the Cayenne is on a standstill on a flat surface with no gradient, the Tiptronic S transmission automatically shifts to neutral the instant the driver applies force on the brake pedal – thereby saving more fuel. Tiptronic S also features a Hill-Holder function that allows drivers to drive from standstill on a uphill climb.