I have a 95 E300 as well and recently recharged the AC due to loss of charge from ruptured pressure switch, it actually blew freon through the electrical pin connections. Anyway I pulled a deep vaccume on it for about 6 hours, kept gauges locked down over night to verify no leaks. Next morning it still had 29 in of vac so I let vac pump run for another 15 min and proceeded to charge. I pre weighed the freon cans also weighing an old empty and got the charge perfect per label, charging only vapor with can in a bowl of warm water to assist in charging.

That has been 4 months now and it's so cold here in Houston tx even you gotta turn it down. It's equal or better than my 2011 gl350.

I would say you have some air or over charged? Does yours have the sight glass? Mine is on top of accumulator and the bubbles cleared up right when the exact amount of freon was finished.

Mine has since it was new a condenser, evaporator, expansion valve, and pressure switches.

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1995 E300 (W124)
1999 ML430 (w163)
2011 GL350 (x164)
2016 Sprinter 144" 4X4 lowtop (906)
2004 E500 (W211) 4matic Wagon (Gold)
2004 E500 (W211) 4matic Wagon Avantgarde (silver)