* Receiver/Drier (accumulator): This component filters contaminants. Since the compressor failed, it's almost guaranteed to be contaminated and needs replacing.
* Refrigerant lines (if damaged): Inspect all refrigerant lines for any kinks, bends, or damage. If any damage is found, those lines will need to be replaced.
* Orifice Tube/Expansion Valve: While you mentioned the expansion valve, ensure it's inspected thoroughly. Debris can lodge there and cause problems, even after replacement. Depending on the system design, it might be an orifice tube instead of an expansion valve.
* Refrigerant: The entire system must be evacuated of the old refrigerant (which is now contaminated), and then recharged with the correct amount of new refrigerant after all the other components are replaced. You should *never* try to recover and reuse the refrigerant.
Important Considerations:
* Professional Help: This is a complex repair involving specialized tools and refrigerant handling. It's strongly recommended to take your vehicle to a qualified A/C specialist or mechanic rather than attempting this yourself unless you have the necessary experience and equipment. Improper handling of refrigerant can be harmful to you and the environment.
* Cost: Replacing all these components can be expensive. Get a quote from a reputable mechanic before proceeding.
In short, while the compressor, dryer, and expansion valve are the most likely culprits needing replacement, a thorough inspection and potentially the replacement of several other components is necessary for a proper and safe repair.
