After draining and flushing the coolant system on my '02 919, I only seem to be able to get about two and a half quarts back in. Is there a bleeder valve to bleed the oxygen out? Even when the thermostat opened, the coolant level was still about an inch from the top of the filler neck. How many quarts is it supposed to hold? Any help would be greatly appreciated.
Negative. I put as much in as I could and let it run until the fan came on and a few minutes after(maybe 9 minutes, and the thermostat should open round about the time the fan kicks on). I let it cool down, opened it assuming that it should've taken care of most of the air, and the level hadn't dropped.
A good tip i learned about adding coolant with minimal air bubbles is pour it slowly when adding it to the radiator. i did this with the track bike and it made the process a lot quicker, i.e. less burping to filler up.