Empty the refrigerant and recycle them through a certified repair center, then un-hook the negative cable off the battery. Unscrew both the undercover and splash shield on the passenger side beneath the car and then the drivebelt of the A/C Compressor. Disconnect the refrigerant lines and compressor electrical connector, unbolt the A/C Compressor and remove it out of the car. When a new or rebuilt compressor is being fitted observe the instructions that come with it about the correct amount of refrigerant oil before the compressor is installed. Installation The opposite of de-installation is to install it, the bolts of the A/C Compressor should be firmly screwed, and any O-rings on them must be new ones matching the refrigerant type used in your system, and greased with refrigerant oil beforehand. Do not apply compressor oil on the fitting nuts and tighten refrigerant line bolts firmly. Lastly, evacuate, recharge and leak test by the system that discharged the system at the shop.