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E320: I replaced the evaporator sensor blew real cold

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I replaced the evaporator sensor...
I replaced the evaporator sensor blew real cold for one hour than back to the on again off again some days it works for an hour or two than other days it won't work no matter what
Submitted: 3 years ago.Category: Mercedes
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Answered in 3 minutes by:
6/9/2015
Mercedes Mechanic: Marty, Mercedes Technician replied 3 years ago
Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 55,280
Experience: Bosch Certified Master Tech. Over 35 years experience.
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Hi, you will need to check for fault codes and check the actual values in the system when it is malfunctioning. Low refrigerant could cause the intermittent operation and a bad compressor or compressor clutch could also cause the problem. Do you know how to check the codes and actual values through the climate control panel?
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