GL550 AC Pressure Sensor Replacement
Have always turn to the advice of the forum members for virtual all maintenance/repairs related to the GL. So here I am back to the forum.
This time, I couldn’t find any post related to this question. Hence started a new thread. So my AC suddenly stopped blowing cold air 5 minutes into my ride yesterday. Pulled out the scanner, no codes. Looked at a live reading for the AC and saw this: over 13,000 PSI. Obviously the Pressure Sensor is broken.
On a lot of cars, there’s a check valve when you remove the pressure sensor and it stops the Freon from escaping. On the GL, if I unscrew the pressure sensor is there such a valve or am I going to loose all the Freon?
I don’t have any AC tools so if there’s no check valve I will have to leave it to the car shop for this repair…
Thanks guys,
Danny




Let us know how that went & then how much to have you sensor replaced.
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