The fuel consumption in your Volkswagen is defined as a normal condition that can burn more fuel to propel the vehicle. But, the most concerning thing is when your car is consuming excess fuel than it is supposed to be. Due to lack of scheduled maintenance and service, your Volkswagen consumes 30% more fuel. The following video defines the common causes behind the high fuel consumption in Volkswagen.
https://www.youtube.com/watch?v=TB2LJAW6o90