You don't add coolant directly to the radiator, rather it goes into an overflow reservoir in the engine compartment. There will be a "min" or "max" line (or both) showing the proper level to be maintained. The reason we do not remove the radiator cap anymore is to keep the coolant system a sealed system so that no air can penetrate the coolant systems. By adding coolant through the reservoir (which has liquid in it already which is drawn from the bottom of that reservoir) we are not comprising the sealed system.
In the radiator
With the engine cold, put it in the radiator just to be sure there is no air gap. Run it for a short time until it gets warm and coolant begins to circulate. Then install the radiator cap and put coolant in the overflow to the coolant level line.
The coolant goes into the reservoir only that says coolant. You don't put it in the radiator.
Radiator. Remove the cap and add coolant there.
In the radiator
Pour the coolant in the radiator.
Yes you can put coolant right into the radiator. Just make sure it is a 50/50 mix of the correct anti-freeze and distilled water.
Coolant for a 2006 VW Bettle is put into the coolant overflow tank. As it is needed, the radiator will automatically pull in additional coolant.
Under the hood on the left side in most cases there is a place to put in radiator coolant.. It is usually next to the windshield wiper fluid... It says radiator coolant on it
Take radiator cap off, fill radiator with coolant, put cap back on!
The Fiat Punto has a radiator which receives coolant in order to keep the temperature down. The diagram of this radiator can be found in the owner's manual.
Add the coolant into the coolant reservoir. Be sure the engine is cool when you remove the cap off the reservoir.