Quote:
Originally Posted by 1972RedNeck
I always replace the expansion valve and accumulator (or what ever you want to call it) when I open a system. If you want the stock look, good A6 rebuilds can be found easily. Unless you are going to run R12 or R12 replacements (Freeze 12, RedTech 12, or homemade refrigerant) you will want to upgrade to a more efficient condenser. Changing hoses is more of a personal preference but definitely flush them what ever you do (new or old).
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Accumulator, or receiver/dryer. Homemade refrigerant could include propane. That is what is generally used in Australia, though it isn't really "homemade" there. I'm not in/from Australia, I just have a wide data base. Propane may require a different lubricant. Interestingly enough, there doesn't seem to be a large reporting database about traffic accidents in Australia where vehicles caught fire in an accident where the AC system was breached. But that is one reason that non-flammable refrigerants are used in the US.