Necessary preliminary work:
NOTE: For purposes of clarity, the following graphic shows the heater/air conditioner removed.
Remove temperature sensor (2) from air duct (1).
BMW X3 Service & Repair Manual > Starter lead: Replacing positive battery cable between starter motor, alternator and
positive battery connection point (N47 D20 O1)
Necessary preliminary work:
Read out the fault memory of the DME control unit.
Switch off ignition.
Disconnect BATTERY EARTH LEAD .
Remove INTAKE FILTER HOUSING .
Remove UNDERBODY PROTECTION
Fold back cover (1).
Release nut underneath.
Remove positive battery cable from battery ...