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Eric, Automotive Repair Shop Manager
Category: VW
Satisfied Customers: 31925
Experience:  Automotive Repair Shop Manager, Technician
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I try putting freon into the AC unti 2006 passat...But I

Customer Question

I try putting freon into the AC unti 2006 passat...But I cannot get a pressure reading or any flow into the car? Car is running and AC is on?
Submitted: 11 months ago.
Category: VW
Expert:  Eric replied 11 months ago.


Is the compressor engaged?

How do you know it is low on refrigerant?

What is the high side and low side pressure readings - Zero on each?

Customer: replied 11 months ago.
Don't think so...I don't, can't get any kind of reading.. From either upper or lower
Expert:  Eric replied 11 months ago.


Ok, if the refrigerant level is too low, there is a pressure sensor that sends a signal to the computer and from there to the compressor clutch to cut power to it. This prevents damage to the compressor from running with no refrigerant.

You will need to unplug the compressor and run jumper wires from the battery to the compressor to jump it so it is running. It will then suck in refrigerant on the low/suction side and fill the system.

Expert:  Eric replied 11 months ago.

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