Hello, I am the original owner with my wife of a 2005 Passat Wagon TDI with 235K. I love the car and just replaced the timing belt but did not replace the chain drive that people are mentioning. I recently started having trouble with the transmission. First about 3 weeks ago the reverse stopped working and now the forward drive is slipping which it did not do until today. I have only used it to make a few trips to town since the reverse quit working. There is no dealership nearby, and the nearest tranny shop is about 100 miles away in Wenatchee. Would it be useful to get it to Wenatchee to check for codes or should I assume that I need to replace the tranny. I can find someone locally to replace the tranny.