64 11 225 Replacing controller for heating and A/C system blower
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Necessary preliminary tasks
- Remove blower housing for heating and air-conditioning unit . See 64 11 545 REMOVING AND INSTALLING BLOWER HOUSING FOR HEATING AND AIR-CONDITIONING UNIT or 64 11 545 REMOVING AND INSTALLING FAN HOUSING FOR HEATER/AIR CONDITIONER (N52T, N55) .
Unlock plug connections (1) and disconnect.
Release screws (3).
Remove controller (2) towards top.