overheating + sounds

hi.. i own a 1988 520i and it's overheating a lot. i've been going back and forth to the mechanics (a BMW workshop) but i dunno.. it's still there. but now it looks like the gauges are at blue but being the worry wart that i am, i popped the hood up. first of all, it makes this mechanical whirring sound when i start it. as if it's dry.. u know like when u have dry throat and try talking. it's almost like that. but before when i checked the coolant level and it was good.

i no close to nothing bout engines, but how hot is the bottom part on the main engine supposed to be when you've just started it for about 2-3 minutes? cause.. uhm.. i got burnt bad from touching it after i turned it off.. (gauge was still in the blue area).

help? please? thanks.
http://www.bimmer.info/forum/images/buttons/edit.gif (http://www.bimmer.info/forum/editpost.php?do=editpost&p=207906)

hi petrol engins like yours dus get very hot wen thay stay on one place thats way the fan shoul start working wen the gage gets to the midle . but wen you driving it should be on the blue . and driving not in trafick

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