cossie I am in the same boat as you. I have turned off my ac altogether and just open all my windows. I will fix mine soon. I just need to set aside funds to do it. thats going to take a couple of months. though I will attempt DIY on it, I am skeptical of taking apart, well the entire dash of the car and then some.
Steve, where is the low pressure switch you are talking about? I don't want to ruin anything else in my ac either as I will put it back into service as soon as possible.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.