Help me here. I'm still unsure what the best way to determine the exact point where enough refrigerant has been charged. I thought one way to determine proper charge (after vacuuming) was to charge until a steady vent temp and pressures are reached, then keep adding until the high side pressures just begin to climb. This would fill the accumulator and allow for any slow seepage without losing cooling performance any sooner than necessary.

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95 E320 Cabriolet, 169K