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Question
Sifaan
A/C gas refilling, whenever I've seen it being done, has involved a thermometer in the airvent and monitoring the pressure while infusing gas into the system.
However, the "correct" way (at least for my car) appears to be to refill to a particular weight (625 +/- 25g in my case). Even the workshop manual gives the weight, not the pressure.
Of course, even if you measured the gas going in, this would only work if you knew how much gas there was in the car, which supposedly involves extracting all the gas using some machine, and then refilling. apparently there's some loss in this process, but generally speaking you'd pay only for the additional gas used (apart from labour charges, etc.)
I guess this system would also really make sense for certain kind of repairs (where otherwise all the gas would be lost).
anyway, my question is - does anyone know of any places that have the machine to do this?
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