Depends on the model and what year you are talking about. Some cars has the bleeder around the thermostat housing or somewhere high in the water loop. Watch for a brass screw since that is what manufacturers normaly use. On several cars like BMW there is an "easy" way to see if you have gotten the air out and that is to run the engine temps up, turn the heater on in your car.
If it blows out cold air or just alittle hot then its a good sign you have air trapped inside. But alot of BMW cars has the bleeder valve at the heater radiator. Can be a pain in the ass to get to it
Another way to "bleed" the car is ofc to try and place or tilt your car so the point at where you fill the water in is the highest point. Start the car and let it idle until the thermostat open and water starts rushing into the system. Refill and find the lowest thick watertube on your radiator and press it with you hand hard. And just keep pumping it. If that does not help, you need to find the bleeder valve.
Hang on... Overclock.net..... computers.... what the h... now we are on cars! what happend!! Edited by Cooked CPU - 4/25/17 at 5:06pm