My Peugeot 206 1.4 Fever is losing water in the reserve water tank. It's gone from the maximum level to above the minimum level in 150 km in 3 days. There's no misfire, smoke, or water leaking from the exhaust. I replaced the reserve water tank with a new cap. The temperature is normal, and the fan kicks in. There are no visible leaks. Why is the water constantly losing water? ylc782024-12-04 23:53:12