4 Tests/notes for all-wheel drive · Balancing wheels on vehicle Towing Tiptronic vehicles

911 Carrera 4 (996) Running gear 4 Tests/notes for all-wheel drive Balancing wheels on vehicle Towing Tiptronic vehicles Whenfine balancingwheels on the vehicle, With engine not running, sufficient lubrication all four wheels must be raised and must be of the transmissionis not ensured. Therefore able to turn freely. the following points must be observed: If a fault occurs in PSM (Porsche Stability Management),read out fault memory before Select position N. Switch off ignition fine balancing. After fine balancing, the fault memory Do not exceed top speed of 50 km/h of the PSM control unit must be erased. Maximumtowing distance 50 km Power test For longer towing distances the vehicle mustPower tests can only be carried out be raised at the rear axle or transportedon 4 roller-type test stands. on a trailer. Brake test Brake tests can only be carried out on roller-type test stands or plate test stands. If no al~wheeldrive test stand (roller-typetest stand) is available,the following limit values must not be exceeded for conventional roller-type test stands: Testspeed max. 7.5 km/h Testdurationmax.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. 4 Tests/notes for all-wheel drive 4 -103 Printed in Germany -15, 1998 C4_4_101