My Jetta with an ALH engine was in the shop getting the 5 speed, clutch and rear engine oil seal replaced. When I received the car back within a few days engine oil was leaking out of the rear seal badly (enough to completely wet and create a puddle in the bottom cover and of course large puddles in the driveway). I took it back, they pulled everything back out and this time even pulled the oil pan and resealed everything along with a new seal from VW. It leaks just as badly again. I've read the article on this site about installation of the seal and it seems straight forward. I also see removal of the oil pan is not necessary. I also know they have not used any lubricant on the crankshaft seal and they let it sit before running it. They also kept the plastic guide in place as they slid the seal on. In reviewing all of this with the shop it seems it was all done correctly. I can't imagine what was missed to cause such a bad leak or what special trick there is to get the seal installed correctly. Should a sealent be placed on the flange seal all the way around? It seems very straight forward and not tricky at all. This is reputable local general shop.