I've found the VW Self Study 423 The Golf 2009 on the web. Its a bit of interesting reading. It covers the basics and additional features added to the 2009 Golf. Obviously it doesn't cover all features on the different models.
VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum
A forum community dedicated to Audi, Volkswagen, Porsche, and all turbo diesel owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, TDI, maintenance, and more!