You should not loose any brake fluid between service intervals. In fact you really should never loose the fluid unless there is a leak somewhere. If i'm not mistaken, The MZ3 brake system and clutch share a common reservoir and use the same fluid. your sqeaky clutch and low fluid may be related. at the very least i would call the dealership where you bought the car and pay close attention to the fluid level. If it drops at all, you have a problem, take it in, and don't let them simply top it up.