1999 E320 A/C issue
 

I have a 1999 E320 RWD. When the A/C is turned on the air blows cold for about 2 - 4 minutes and then it seems that the compressor cuts out and blows warm air. When the car is shutoff and left for 15 - 20 min. the A/C blows cold again. The following are the readings from the car. I am in Canada so the readings are in Celsius?

EC light is not stuck on.
Sensor values:
1 - 25
2 - 26
3 - 24
4 - 24
5 - 64
6 - 72
7 - 09
8 - 41

the error codes are B1227(outside temp), B1234(Sun Sensor).

Does this mean the both sensors are malfunctioning or is there a cause and effect happeniing here?

Any help in identifying the actual issue would be greatly appreciated.

The actual issue is indicated at #5. You have a bad evaporator temperature sensor.

Along with that make sure your AUX fans are turning, if not the refrigerant pressure could be causing the AC compressor to turn off

My thanks to both MAtt and e300d97. I wil chack it out and post my findings. The quick response is much appreciated.