I am working on replacing most of the air conditioning system in my roommate's 1991 W126 350SDL. The hoses have leaks and I couldn't believe the prices for new hoses! $800 just for the suction hose. New hoses are out of the question, and they probably aren't barrier hoses, anyway. Right?

I'm going to take the hoses into a hose shop that will rebuild the hard lines with new barrier hoses so they will be compatible with R134a since a previous owner had a parallel-flow condenser custom-made and was done so well that it looks factory. Or maybe it is?

The suction hose has an accumulator on the hard line portion, right before it connects to the compressor (the compressor is being replaced with a new one). The car has a separate drier as well. Can the accumulator be reused? If not, then what? Spend $800 on a new suction hose that won't have barrier hoses on it? Or can the hose shop just cut it open and replace something inside?

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1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles