Poor AC performance Due to Evaporator Temperature Sensor Failure on Mercedes-Benz C230

The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

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Average mileage: 117,000 (91,000–160,000)
6 model years affected: 1997, 1998, 1999, 2000, more2005, 2006
7 people reported this problem
3 people shared problem details
The A/C would not cycle on. After taking it to a shop they replaced a variety of pressure switches and other components, only to have the system fail two days later. I took it to a different mechanic and they quickly diagnosed the issue as a faulty temperature sensor - a relatively inexpensive fix.
I have a 2005 Mercedes C230 Kompressor Sport 4 door sedan. My AC was not working so I changed my compressor and flushed out the ac system and recharged it. The ac would blow cold for 2 to 3 minutes then start blowing hot air. My temp setting dial was set to the coldest when this happened. My mechanic was stumped. After reseraching on the internet, I concluded it was the AC Rerigerant Evaporator Temperature Sensor (part number 220 830 0772) which I got from my local Mercedes "Stealership". My mechanic is working on putting in the sensor now. I live in Southern California so summers are hot and dry. I need my AC to blow cold. I will keep you all updated.
My air conditioner does not turn on at all.
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