Air-conditioning goes on and off by itself what’s wrong

What is your question?

Sometimes my air condition works but goes on and then goes off and sometimes it goes back on air comes out cold no problem with the heater it just goes on and off can you tell me what’s wrong do I need a new switch thank you

What makes this problem better or worse?

Yes When the car is warmed up it’s OK but sometimes still goes off

How long has your 2003 Mercedes-Benz E320 had this problem?

Yes About two weeks