Contents of the kit:
Carbon fiber reinforced actuator pinion (Black)
Hollow intermediate transmission shaft (White)
Integrated lip seal on metal plate
Output shaft SPI joint
Circlips and support washer
Compatible with all following models:
BMW Xdrive model ATC400, ATC500, ATC700
X3 E83 2003-2010
X5 E53 2003-2005
X5 E70 2006-2009
Original part guaranteed for 2 years
Do you have the 4x4, ABS, DSC, EBV fault light?
A noise coming from the transfer case?
Possible diagnosis= HS transfer case
In fact, most of the time this failure comes from the servomotor which activates the Xdrive.
More precisely the reduction pinion which is fragile originally and loses its teeth causing the transfer case to malfunction.
Transfer cases type: ATC400, ATC500, ATC700
During assembly, seal the kit with a sealant such as Loctite SI 5970.