1986 300E

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1986 300E

03-17-2009, 03:40 AM

SD300

home of 4,5,6,8 cylinders

Join Date: Jul 2005

Location: Vancouver BC

Posts: 504

i was told , if there is not enuf Freon the system will not let the a/c pump clutch to work, some sort of protection to prevent the pump to run dry. Some sort of pressure sensor hooked to the system. One can always run 12 v to the pump terminal, and see if it cools down.
correct me if wrong.

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