Service Information
On a vehicle equipped with an automatic transmission,
when driving onto brake analyzers, move the selector
leverto the “N” position . On a vehicle equipped with a manual transmission,
do not release the clutch pedal once on the brake analyzer.
This keeps the transfer case clutch open and the vehicle cannot be pulled
offthe analyzer.
Towing
Use only a flatbed carrier!
Oil, TransferCase, and Clutch Monitoring
Oil
All xDrive transfer cases use Shell Gear oil part number 83 22 0 306 816.
There is no scheduled service for the transfer case oil. Oil Monitoring is performed by the
VTG control module to determine when a service (change) is due. The VTG calculates
transfer case and clutch wear based on the amount of slip, engagement pressure
(torque), speed and mileage.
This calculation accounts for:
• normal “dry” road driving (Integrator 1)
• “adverse” road driving (Integrator 2)
• “other” road extreme driving (Integrator 3)
Depending on individual vehicle use - driving styles and driving conditions, the transfer
case oil service interval will vary.
When a service is due, this will be indicated by a Fault Code and additional details are
available using the DISplus/ GT1. Service functions provide directions on changing the
transfer case oil and updating the VTG control module with the necessary reset and
adaption procedure. This is extremely importantfor CBS.
TransferCase and Clutch
The transfer case and clutch have separate monitoring characteristics. These values are
stored as adaptive values in the VGSG control unit and must be transferred to a new con-
trol unit if replaced.
The value for both can be obtained using the diagnostic software under:
Control Unit Functions => VTG => Diagnosis requests => Transmission
Control Unit Functions => VTG => Diagnosis requests => Clutch
36
E61 Sports Wagon
Safety Notice!!!
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