u/GrandOrdinary233

I recently bought another e46 . I got an LCI 330i 6 speed. About a month into owning it I’ve started to have an issue where the car overheats at idle. My first thought was to bleed the system. After bleeding it was fine for about 2 days and then started to do it again. There are no visible coolant leaks anywhere. The weird thing is that the fan is on sometimes. When I’m sitting at a light it will slowly start to overheat and then as soon as I start moving it cools itself down. I belive it’s the fan. Today though it started to do a weird thing where occasionally it would start overheating after idling for only about 5 seconds and then when I started driving it would start to dip into the cool range of the gauge. Please Help!!!