ocampg
06-07-2004, 07:51 PM
my 89 525i M20 started overheating today. Upon inspection of the radiator cap, I noticed that the 3 o-rings, 2 were broken, and 1 had a fairly large piece missing. I also noticed that there was no water left in the overflow/expansion tank which explains the car overheating.
I am wondering how bad it might be that there are pieces of o-ring floating around my cooling system.
Also, I would like to know exactly where the coolant might have escaped? I assume if it leaked past the o-rings and the cap, there would be a residue surrounding the tank/cap, yet it seems to be clean as whistle.
Under normal operation, where does the overflow escape from? Most cars that I have seen have a little tube at the top of the tank for it to drip out of, However I do not see anything of the sort on this particular vehicle. Sorry for the long post, just very curious as to how the system works, and what might have went wrong.
TYIA
Geoff
I am wondering how bad it might be that there are pieces of o-ring floating around my cooling system.
Also, I would like to know exactly where the coolant might have escaped? I assume if it leaked past the o-rings and the cap, there would be a residue surrounding the tank/cap, yet it seems to be clean as whistle.
Under normal operation, where does the overflow escape from? Most cars that I have seen have a little tube at the top of the tank for it to drip out of, However I do not see anything of the sort on this particular vehicle. Sorry for the long post, just very curious as to how the system works, and what might have went wrong.
TYIA
Geoff