HouseCallAuto 9/23/20123185 and 3249 special tools that will cost too much. you can use a 1/4" drive 'wobble drive" extension and 10mm socket and succeed. Vw's use sealant between the pan and block, not a gasket. Are you sure the leak is from the pan to block seal? Some have leaked from the valve cover and it runs down the block. There is also an o ring seal between the oil cooler and the block those can also leak.