Evaporator Question
 

Where is the evaporator and evaporator switch on a w202 and how do you change it? TIA. Michael

Inside a box under the dash. Often a dash must be removed to change or access it.

Thank you. I just purchased both the Refrigerant Pressure Switch and the Evaporator Switch from the Dealer. I am hoping just the pressure switch will get it all going.

I have a place out in the Mojave:thumbsup: Michael

If by "evaporator switch" you mean the temperature sensor, that's easy to change.

Changing the pressure sending unit requires that the system be reclaimed first and recharged after. If your dryer is original, you should put a new one in. If it's been replaced for other service in the past few years, you can probably get away with reusing it, if you're careful.