Due to the way the Curt Trailer Hitch # C11474 fits on a 2009 VW Jetta Sedan (note: the Curt does not fit a TDI) - with the crossmember below the bumper fascia - I do not recommend using the hitch as a brace for a hydraulic floor jack.
You may be able to use one of these hitches with a different jack, and I recommend checking out the Powerbuilt Unijack Bottle Jack # ALL620471. This jack has a 6,000 lb capacity and measures 11 inches tall; it can lift 10 inches for a total height of 21... view full answer...