64 12 540 Removing and installing/replacing circulation pump (Thermo Top S)
WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.
Remove combustion air blower unit, refer to 64 12 520 REMOVING AND INSTALLING/REPLACING CONTROL UNIT WITH HEAT EXCHANGER (THERMO TOP S) .
Release screws and remove circulation pump.
Installation:
Observe tightening torque, refer to 64 12 9AZ in HEATING AND AIR CONDITIONING - TIGHTENING TORQUES - 5-SERIES .