This resource specifies the precise amount, measured in weight (typically ounces or grams), of refrigerant required for the air conditioning system in a specific model year of the Toyota Corolla. It also often details the type of refrigerant needed (e.g., R-134a or HFO-1234yf) and the type of oil required for the AC compressor. For instance, a document might indicate that a 2015 Toyota Corolla requires 16 ounces of R-134a refrigerant and ND-8 oil.
Accurate refrigerant charge is crucial for the optimal performance and longevity of a vehicle’s air conditioning system. Insufficient refrigerant can lead to poor cooling performance and potential compressor damage due to inadequate lubrication. Overcharging, conversely, can cause excessively high pressures, leading to component failure and reduced efficiency. Historically, incorrect charging practices were more common, leading to a greater reliance on precise specifications. Today, these specifications enable technicians to restore AC systems to their designed operating parameters.
