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#1
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I recently bought a 300E for my daughter. The AC needs to be recharged. I have all the maintenance documentation and it indicates that the system was retrofit to 134A two years ago. However, The adapters are still the R12 fittings. Now I am confused. The system is now empty. I ran a vacuum for 24 hours. Found no leaks. Since the PO may have been charged for a conversion that was never done, I wonder what is (was) in the system. My thought is to pull the compressor , drain and replace oil with ester, vacuum and charge with 134A. Should I flush and with what? I would like to know what other thoughts are on my dillema. I have all the guages, etc. John
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#2
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If you do go with the 134, it will not cool as well as with the 12. This is a fact of life. The systems that are designed for 134 do cool just as good as the 12, but when you convert, you loose capacity. I would find the leak and use 12.
------------------ Benzmac: Donnie Drummonds 1991 GMC Syclone ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM |
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