Where is the fuel tank switch on the Volkswagen Passat?

[McEden]

There are two types of fuel tank cap switches for the Volkswagen Passat. One is located on the driver's door with a trunk release button in the storage compartment, and the other can be operated using the key fob button. Below is an introduction to the fuel tank design requirements and maintenance procedures: Fuel tank design requirements: The fuel tank must have a sufficiently large capacity. On one hand, it should meet the heat dissipation requirements as much as possible, and on the other hand, it should be able to contain all the working medium in the system when the hydraulic system is not in operation, while maintaining an appropriate fluid level during operation. The suction pipe and return pipe should be inserted below the minimum fluid level to prevent air suction and splashing of the return oil, which can cause bubbles. Fuel tank maintenance procedures: Fuel tank maintenance mainly involves draining accumulated water and sediment from the tank during the vehicle's primary maintenance, and checking for oil leaks at pipe joints and switches. For fuel tank caps equipped with air valves and steam valves, it is also necessary to check whether the vent holes are clear. The filter screen at the fuel filler port should remain intact to prevent impurities from entering the tank during refueling and clogging the fuel lines. The sealing gasket of the fuel filler cap should also be intact to prevent fuel from spilling out while driving.