Tests/Notes For All-Wheel Drive
Tests/notes for all-wheel driveInformation
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 program (High Range) on 1-axle roller-type test stands with four-wheel drive function. Requirements:
Transmission in neutral during test (before starting the rollers).
The following limit values must not be exceeded:
Test speed: max. 7.5 km/h.
Test duration: max. 20 seconds.
Observe specifications in the operating instructions provided by the relevant manufacturer of the axle roller-type test stand!
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:
No power assistance for the towed vehicle when the engine is not running.
^ A lot more force has to be used when braking and steering!
^ Always tow with extreme caution, and at low speeds. Observe the Driver's Manual.
Note:
^ There is insufficient transmission lubrication when the engine is not running.
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.