Tests/Notes For All-Wheel Drive

Tests/notes for all-wheel drive

Balancing wheels on vehicle

When fine balancing wheels on the vehicle, all four wheels must be raised and must be able to turn freely. If a fault occurs in PSM (Porsche Stability Management), read out fault memory before fine balancing. After fine balancing, the fault memory of the PSM control unit must be erased.

Power test

Power measurements (for the 911 Turbo and GT 2) under full load are not permissible on the roller-type test stands!

Function tests and partial load measurements are permissible without full load. These tests on four-wheel drive (911 Turbo) may only be performed on 4-roller-type test stands!

Brake test

Brake tests can only be carried out on roller-type test stands or plate test stands. If no all-wheel drive test stand (roller-type test stand) is available, the following limit values must not be exceeded for conventional roller-type test stands: Test speed max. 7.5 km/h Test duration max. 20 seconds.

Towing manual transmission vehicles

If vehicle is towed with raised front or rear axle, the wheels of the raised axle must be able to turn freely. The ignition must be switched off and the shift lever must be in neutral.

Towing Tiptronic vehicles

With engine not running, sufficient lubrication of the transmission is not ensured.

Select position N. Switch off ignition.

Do not exceed top speed of 50 km/h.

Maximum towing distance 50 km. For longer towing distances the vehicle must be raised at the rear axle or transported on a trailer.