clavel, check the electrical connection to the radiator fanbefore changing it. baka nag short lang sya coz of the baha.

a rule of thumb is that no water should need to be added to the cooling system. the minute nagbabawas sya, this means there is a leak somewhere or a busted headgasket that allows the water to evaporate.

basta nagbabawas masama ito and it should be checked and fixed asap.