molawn

Hi all I have some trouble starting my '98 tdi. To make sure its not a simple thing as the fuel filter, I wanted to changed that today. After pulling out the white T valve, I noticed there wasn't any o-rings stuck on it. On other tdi's theres normally an o-ring (or two) you need to change when changing the filter. Could the o-ring be forgotten last time the filter was changed or is it just perfectly allright without? Cheers, Martin