try to elevate the front of the car on jack stands and remove the cap from the coolant tank and allow it to sit over night. gravity should be able to force the air back to the top. other than that, turn the heat all the way up, fans to high and let it run while keeping an eye on things. if the thermostat doesn't open it's in backwards, defective, or there's air stuck still. I used to do coolant flushes all the time at work and i invested in a coolant flush kit which consists of a big bowl with an adapter that screws onto various coolant jugs, so you can fill it up and then let the car run and allow the air to work itself out without having to constant add more coolant. a temp gun, or temp leads for a multimeter help too, you can check the water temp and compare it against what the gauge is telling you.
Originally Posted by cj.surr
Drop the clutch, proceed and ain't care.
- '06 325xi 6MT
- '96 328i 5MT "drift turd"