There is no opener as such. If you check, you will find that when the car doors are unlocked, so is the gas cap door, and vice-versa. When the car doors are locked, so is the gas cap door. They run off the same electrical air pump - vaccum line system.
The 2010 Volkswagen Passat is a gas-powered vehicle.
The 2012 Volkswagen Passat is a gas-powered vehicle.
The 2014 Volkswagen Passat is a gas-powered vehicle.
The 2008 Volkswagen Passat is a gas-powered vehicle.
The 2005 Volkswagen Passat is a gas-powered vehicle.
The 2003 Volkswagen Passat is a gas-powered vehicle.
The gas tank on the 2006 Volkswagen Passat holds 18.5 gal..
The gas tank on the 2003 Volkswagen Passat holds 16.4 gal..
The gas tank on the 2005 Volkswagen Passat holds 16.4 gal..
The gas tank on the 2008 Volkswagen Passat holds 18.5 gal..
The gas tank on the 2004 Volkswagen Passat holds 16.4 gal..
The gas tank on the 2009 Volkswagen Passat holds 18.5 gal..