Thats over the allowable amount, but not massively so. Re-shimming may well help, but its not the shims thats worn, its the case (bearing thrust face). At .25 endfloat, I'd say you'll get a fair few thousand miles out of her yet, but it will slowly increase as crank pounds back and forth. Personally, if its not a daily driver I'd just use it for now, I daresay there's a lot of vw's out there running more endfloat than that.
Fredster - wielder of the mighty hickory-handled pursuader.