A/C compressor replacement
your best bet, and only really, is to find a competent repair shop that will offer a good warranty on their work, and you're gonna pay a good penny but they will flush the system and replace all the necessary parts and properly evacuate and charge it. if things are maintained you should never have a compressor crap out, and because you've had a compressor failure and it sounds like you've had more than one, you need the system completely flushed because any debris in there will destroy a new compressor and you'll just keep replacing compressors. you're gonna probably need a new accumulator and condenser along with new compressor, possibly new pressure hoses, and i would look into getting that variable orifice tube thing which is supposed to offer a little better performance when the engine rpm's are low like at idle when stopped.

