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-   -   Schrader valve keep leaking (http://www.peachparts.com/shopforum/showthread.php?t=358095)

owain 07-31-2014 07:31 PM

Schrader valve keep leaking
 
1990 300D, I have a reoccurring problem. The high side AC Schrader valve keep leaking. I have replaced with OEM MB valve core & started leaking again. This has been done 3 times & always starts leaking again. AC stops working after approx 2 months.
I have also used R134,retro fit on top of the R12 valve, now that's also leaking.
Any help would be great.

97 SL320 07-31-2014 09:02 PM

A good valve cap with a o ring will seal pressure even with a bad core.

What method are you using to identify it is leaking?


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