plz help,narrowing down the source of a headache
 

good afternoon,i have a 1994 525i and the problem ive been having is located near the radiator and front of the engine.my car was overheating and i fixed that problem with excessive bleeding of the system.2nd my radiator is losing coolant like my girl friend spending my $(fast,havnt really found the source of this yet but gonna get under the car for this one),3rd is the radiator fan and the water pump.radiator fan is a lil loose and is making a metal scraping noise(i think it might be ball bearings in the pump)its a lil loud.plz help me with this headache.

I'm not sure how you managed to fix an overheating issue by flushing the coolant. In any case, you need to replace the radiator and fan clutch. Anytime you have a cooling system failure in a BMW I would recommend replacing the entire system. That means radiator, hoses, water pump, thermostat, sensors...everything.