What does this traffic sign indicate?

You answered correctly. This traffic sign indicates an auto gas (LPG) filling station. LPG stands for Liquefied Petroleum Gas, which is a type of fuel used in some vehicles.

In Germany, this sign shows drivers where they can refuel their LPG-powered cars. It is important to recognize this sign so you can find the correct refueling station for LPG vehicles.

The other options, natural gas and hydrogen stations, have different signs and are not indicated by this LPG sign. Knowing these distinctions helps prevent confusion and ensures that you refuel at the correct type of fuel station for your vehicle.