Notes:1.We strongly recommend professional installation.2.please make sure the installation site is clean. Or, it will cause operating obstruction,even make the temperature of the compressor very high, and the belt on the clutch may melt.3.Before installing the air conditioning compressor, clean the vehicle pipe to avoid noise and non-working problems.4.Each air conditioner compressor is equipped with oil, does not need additional refueling, directly ins.