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TOPGUN

03-23-2008 12:58 AM

expansion valve

I need to relace the expansion valve on a 89 560sel. Is it ok to assume a new one is still calibrated to flow R12 as opposed to R134a? The one in the car is leaking at what seems to be the cap covering the adjustment screw. The valve pictured in Fastlane parts has the MB star on it. That will be the one I order to use with R12. Any thoughts greatly aprreciated.

platt-deutsch

03-23-2008 01:17 AM

As the pressures are almost identical with R134 and R12 should be no problem..

david s poole

03-24-2008 10:49 AM

yes the 134a valve is a direct replacement for the r12 any can be used with no perceptable diff.

TOPGUN

03-29-2008 11:26 PM

Both David and Platt are very right about this. Upon removal of the valve I found r134a stamped on the old valve. Thanks for your help. Topgun

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