07 March 2018, Switzerland, Geneva: A filler plug for a diesel tank is on display right next to a AdBlue filler plug (L) on an Volkswagen (VW) Diesel Golf Alltrack 2.0 TDI
2015 Golf SportWagen Comparison Test - Diesel World
Audi Q7 TDI Adblue tank and DPF filter diagram | VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum
How to add Diesel Exhaust Fluid (DEF) to a 2012 – 2015 Passat TDI | Full Throttle