X5 4.6iS: Transmission
The X5 4.6iS is available only with a ZF A5S 440Z 5-speed automatic transmission which features modified internal components. Many internal components, including the torque convertor have been modified to handle the increased torque and horsepower.
The transmission is specific to the X5 4.6iS and no other transmission should be substituted.
Programming of the transmission is also changed to better accommodate the vehicle. Transmission management will be by EGS 8.60.2.
Transmission diagnostics will be handled in the same manner as other models.