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Discussion Starter #1
I'm in need of help this issue is starting to get frustrating I have a 2004 530i. I've recently changed the water pump, the upper coolant hose, and the reservoir expansion tank. It doesn't leak coolant anymore but it still says its overheating, and if I ignore it then all my coolant will run out. What is the problem? Also my engine fan it making a weird noise when it clicks on as if it's rubbing up against something,it's very high pitched. What could that be? My final question is how can I get my radio to come on? As of right now it comes on when ever it feel like it someone told me it could be the ccc, but I don't know what that stands for please HELP!!
 

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If you're losing coolant, it's leaking somewhere.

Have the coolant system pressure tested. Hopefully it's an external leak.

Make sure the rad fan is not hitting the radiator itself, causing it to leak.
 

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Discussion Starter #7
If the rad fan is hitting the radiator how can I make it stop and I have no coolant leaks now everything is still full
 

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2006 530xi 6 MT
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Find the noise. And, change the thermostat. It is standard practice to change thermostat when changing water pump.
 
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