Okay, what is in line? Should I just remove some freon, or should I evacuate the system, flush, and recharge? If so, how much oil and 134A and should anything else be changed out, such as the drier.

Also, I see from a post just done after mine, that I need to get a digitial scale for measuring the weight. I'll look for one that reads ounces.

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05 SL600 75K
87 MB 560SL 119K
87 MB 300D 180K
83 MB 240D 110K
64 1/2 Mustang
74 Monte Carlo 32K
75 Fiat 124 Spyder
16 Equinox
15 2500HD Silverado