Mercedes Benz repair: mercedes ml 320 cooling fans, mercedes ml 320, temperature sensor manufacturer

Question
electric fans wont run, no voltage. a/c is at full charge, car runs fine. 2001 ml 320.  what controls these fans and where do i find the control?

Answer
Answer:

Best guess without diagnostics:

Item Number: 1635420418
Main Category: Mercedes Benz
Sub Category: Climate Control
Description: A/C Pressure Switch...In A/C Line from Compressor to Condensor
Manufacturer: MBZ
List Price:
Your Price: $ 97.00
Core Price:
Weight: 0.130
http://catalog.mercedesshop.com/item.wws?qty=1&mfr=MBZ&sku=1635420418&price=97.0...

Item Number: 2038300472
Main Category: Mercedes Benz
Sub Category: Climate Control
Description: A/C Temperature Sensor...(refrigerant Temperature Sensor)
Manufacturer: MBZ
List Price:
Your Price: $ 57.00
Core Price:
Weight: 0.130
http://catalog.mercedesshop.com/item.wws?qty=1&mfr=MBZ&sku=2038300472&price=57.0...