So the first thing to do if you end up checking or replacing the coolant in the air con process is flip the lovers to excessive, all of the temperature settings on the coldest and switch it on to the air con environment. So as soon as you might be below the hood of the auto work out the place your high and low stress strains are on your air conditioning process and handiest use the low and what you are going to do is get a gage and get the air-con you need and also you clamp the gage on or some screw on. After you have the cap placed on the line it’s going to have a gage and it is going to say low, filled, or alert and so below 25 kilos it desires to be stuffed. Anyplace between 25 and 45 way it’s first-rate but over forty five pounds it has an excessive amount of pressure this means that you could have a quandary with the system or it’s over filled and if that is the case you have to drain it. The tube you are watching for is almost always between the compressor which is on the engine and the evaporator which will be the section which is for your dash or on the firewall and it relies where it’s, on some cars it is on the driving force’s side and some the passenger’s part so check with the proprietor’s handbook and that’s the high-quality method to figure out the place it could be. .