Hi Randolph:

Thank you for a very definitive answer. When I purchased this car a few
weeks ago it did not have the reservoir, but at least the vacuum line going
to it was capped off, and everything seems to work just fine. I haven't
tried the A/C yet, its still winter here. Anyway, I showed the car to my
local VW service manager and he did not seem to think that its absence was
much of a detriment. I have looked just about everywhere for a replacement
reservoir, including Ebay, but no luck so far.