Tests/Notes For Four-Wheel Drive

Tests/notes for four-wheel drive
Balancing wheels on vehicle
^ Electronic fine balancing (static balancing) of the wheels on the vehicle (after stationary balancing) is not required (status July 2002).

Power test
^ Performance tests on roller-type test stand are not approved by Porsche!

Brake test
Brake tests may only be carried out in the road driving programme (High Range) on 1-axle roller stands with four-wheel drive function. Requirements:
Transmission in selector lever position N (transmission idle speed) during test (before starting the rollers).
The following limit values must not be exceeded:
^ Test speed maximum 7.5 km/h.
^ Test duration maximum 20 seconds.

Parking brake test
The foot-operated parking brake may only be tested on the roller brake tester with the ignition switched off and selector lever position N selected.

Towing Tiptronic vehicles

Warning! Danger of accident! There is no power assistance available for the towed vehicle when the engine is at standstill! For this reason, a lot more force has to be used when braking and steering!
Always tow with extreme caution!

Note!
^ With engine not running, sufficient lubrication of the transmission is not guaranteed!
^ Select position N.
^ Switch ignition on (otherwise steering lock will engage and brake light and indicator light won't function).
^ Do not exceed top speed of 50 km/h.
^ Maximum towing distance 50 km.
^ If, owing to circumstances, vehicle has to be towed with raised axle, the cardan shaft of the axle whose wheels are turning must be removed.
^ In the case of long towing distances, vehicle must be transported on a trailer.