Where is the fuel tank cap switch on the Volkswagen Passat?

[OAiden]

The fuel tank cap switch on the Volkswagen Passat is located on the left side of the door. Pull it upward to open the fuel tank cap. Before refueling, turn off the car engine, open the fuel filler cap, and press the fuel tank cover in the direction of the arrow to add gasoline. Car refueling tips: 1. The best time to refuel is in the morning or evening, as this can avoid gasoline expansion caused by the strong midday sun. Gasoline is charged by volume rather than weight and is subject to thermal expansion and contraction. Refueling in the morning or evening means the same volume of gasoline has more mass, allowing a full tank to run dozens of kilometers further. 2. If you mainly drive in the city, it's best to fill the tank only halfway or two-thirds full. City driving often involves frequent stops and starts; a full tank increases the engine's load, leading to sluggish acceleration. 3. Do not exceed the fuel tank's upper limit when refueling. A full tank makes it easier for gasoline to evaporate into the atmosphere, causing air pollution. This not only wastes fuel but also harms the air and can damage the engine or catalytic converter.