hi I know that this is an 13 old tread, but I will try anyway
I am working on the transmission on my wifes new old 1982 W123 300D 968000Km on the clock

and now I have a question on the hole in the bottom of the B2 servo cylinder,
is there a small air outlet hole? and in the case what size, see enclosed picture
the picture is from this tread.
in the case of my wifes transmission there is just a 5mm hole, that I think has been drilled out on previous repair job.

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