after draining the coolant

Be more specific? r u taking about the cooling system?

If so, then when cold, remove radiator cap, start the car, once the thermostat opens u will see some movement in the coolant..continue pouring coolant until it fills to the top. replace the cap...make sure the coolant on ur overflow tank is on the indicator line..

Another way to get an air bubble out is to remove all of the coolant..and slowly replace it into the radiator.. & repeat the procedure above.

In cooling system? Run it with the rad cap off for a good 15-20 minutes.

Don't! If your car is sinking, you need to grab deep breaths while you first unfasten your seat belt, then seeing if you can roll down a window so you can get out. Be aware that as soon as you start opening anything, the rest of the air in your compartment will escape, so ensure you've got a nice lungfull before you do that.

Shame, such a nice car.

air pocket in radiator, or breaks, or what?