Porsche Traction Management (PTM)
Power distribution between the front and rear axles is performed by a map-conrolled multipledisc clutch.
Distribution of the engine power also depends on the difference in wheel speed between the two axles.
The multiple-disc clutch always delivers sufficient drive power to the front wheels to ensure optimum propulsion even on an unfavorable road surface.
In combination with the Porsche Stability Management (PSM), the PTM ensures optimum handling and high driving stability.
Inappropriate Driving Style and Speed
The limits dictated by the laws of physics cannot be overcome, even with PTM.
The risk of accidents due to inappropriate speed cannot be reduced, even by PTM.
The driver bears the responsibility for all driving maneuvers.
Dynamometer testing procedure
A two-wheeled dynamometer is a treadmill type device upon which a single axle of the car, the driving axle of the vehicle, rotates to simulate vehicle operation on the road while the vehicle remains stationary.
Your vehicle has a full-time four-wheel drive system which cannot be disabled. Severe damage to the powertrain can result if tested on a two-wheel dynamometer.
Unexpected Movement of the Vehicle
The ignition must be off.
Balancing wheels on the vehicle