E46Fanatics - View Single Post - Quick question about the radiator bleed screw
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Old 10-20-2005, 06:42 PM   #6
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Join Date: Dec 2004
Location: Brooklyn, N.Y.C.
Posts: 6,378
My Ride: allroad / Hayabusa
Originally Posted by nEVERCLEAR
It is there to bleed the system when you change the fluid or open the sytem. It is a pressurized system, unless you are overheating due to air pockets in the system I see no reason to routinely bleed the system. My plastic screw broke and no one had touched it for 10K miles.

If you do tighten it make sure it is just enough to stop it from leaking they can break.

How do I know if I have air pockets in my cooling system; also how do I get rid of them?
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