Cooling issues agian!
 

2 weeks ago replaced thromostat after that realized (hg) is leakin but guna fix tht in the spring car starts cooling down wen in high revs only it overheats in traffic
ANY SUGGESTIONS
CLUTCH FAN MAYBE ?

and no heatt !

Could be;

Clutch fan
Air Pocket in cooling system
Pluged heater core
Faulty control panel

could anybody diagnose it for me cuz i dont wanna start putting money in to

bleed the air everyday in the morning still no differance

?>?

its got air in it every morning?

keep bleeding it and adding coolant.. then once that's complete move onto the next trouble spot..

Sorry boys too late to trouble shoot :( blew the expansion tank hoses which ruptured the plastic plug it goes in

any reason why it would get blown off (expansion tank Hose) from the top of the expansion tank the small hose

yeah! you have too much air in the system and the pressure built up to the point that it blew.

My expansion tank also blew in the summer, to be specific, it was the little screw on the top of the expansion tank, after I replaced it, I believe the part was 30$, I never had cooling issues again. This was on my 2000 5spd 323I. You could have a more servere problem, then just air pockets, I'm guessing it's either the water-pump malfunctioning (electrical problem) or you have a clogged heater core.
http://www.davidwaller.net/BMW330Cic...hose_small.jpg

The only other thing I can think of is electrolysis. Here is an example of what it can do, hence it not cooling properly unless you make the belts work very fast (adding gas).

http://classic.artsautomotive.com/Er...peller-001.jpg

it was not tht hose it was the smaller one tht goes from the expansion tank to the rad

thanks for the help guys keep it coming tho still tryin to figure out wat happened

http://www.benhirsch.net/m3-maintena...h/tech_rad.gif it was the small hose from the expansion tank to the rad