Dear sifus,Im driving an E46 318i 2004 make. On Thursday I serviced and changed engine oil. Saturday drove to Penang. Up until now, I believe i have driven for at least 800km to 1000km. This morning I checked the lever, my engine oil has dropped to 'minimum'.No white smoke is detected. My water level has not dropped. Is it time to overhaul? 85000 mileage.My SECOND ISSUE: my car when breaks, it doesnt come to a stop smoothly but it breaks with a creaking or popping sound. I consulted a bimmer foreman and he said it is normal. I am unsure of this because it is weird if a car brakes, it doesnt stop naturally but with a creaking or bopping sound.Thanks in advance.Sincerely,