Hi gentlemans, i had a 1999 325c, few months ago i change all the coolant system: pump, lines, radiator and coolant deposit. Everything is new, but i had this problem:
The temperature gauge mantain the same indication, so i never had an overheating, but sometimes i loose all the coolant liquid by the cover of the deposit. This happend after 2 days of use, never before. Now, sometimes i open the deposit cover in cold and release air pressure. I dont know if the coolant system had a valve for release this air or what. I also try with the screw placed on the deposit to keep only the liquid, but doesnt work.
Anybody had an idea to fix it?
Regards,
R