Well it all depends on what your repair is, is it easy ? or is it intermitent ? or is it mechanical ? the list goes on, then it depends on the technician working on your car, have they seen this problem before ? or is this another learning experience for the tech ? then what is their work load like, are they busy or slow ? and remember there is usally only one xfire tech per dealer, so a day, two, three, a week ??????