IMPORTANT: Use only the approved TRANSMISSION OIL in the transfer box.
Failure to comply with this requirement will result in serious damage to the transfer box!
NOTE: Only change oil when transfer box is at normal operating temperature.
Necessary preliminary tasks:
Check transfer box oil level, correct:
Undo oil filler plug (1).
Check transfer case oil level.
If necessary pour in transmission oil up to the lower edge of the oil filler plug opening (1).
Installation note: Replace oil filler plug (1).
BMW X3 Service & Repair Manual > Heater with operation: Replacing controller for heating and air conditioning system blower
Necessary preliminary work:
Remove TRIM FOR INSTRUMENT PANEL, BOTTOM LEFT
Removal:
Release screws (1).
Unlock and disconnect connector (2).
Remove controller (3) downwards.
Installation:
Position controller (3) correctly.
Tighten down the screws (1).
Connect connector (2).
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