Someone else asked this before, it looks like it's somewhere under the windshield-dashboard area. The parts manual or catalog don't show exactly where. My guess is under the dashboard or behind the center console area, or behind the shifter on the center tunnel. The other posted never posted a follow up, if you find out ,please post a follow up.
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!