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AC evaporator valva o-ring

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rrrs
Posts: 64
Joined: Wed Nov 07, 2018 8:51 pm
Location: Hawaii

AC evaporator valva o-ring

Post by rrrs » Sun Dec 29, 2019 2:17 am

In process of replacing the AC evaporator valve and got the whole o-ring kit (should be enough for the whole AC system.
the problem id that as a part of the kit there are O-rings with ID of 6.8, 7.6, 11.1, 14 and 17.17, but it is missing a very small O-ring that seems to be (measured my old one) about 3.2mm ID.

This is the one on picture below that fits in the fitting circled with red.
o-ring.jpg
o-ring.jpg (48.67 KiB) Viewed 2575 times
Would someone maybe know the Santech part number or at least correct size/thickness; my old one is pretty distorted so worried not to get the right size if I just try measuring mine.

What is strange is that when looking for O-ring listings at any BMW parts vendors here (Pelican Parts, FCP,...) none lists this size O-ring while they list all of the bigger ones.
As well, I bought new evaporator valve but this O-ring was unfortunately not included.

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