Why can't the fuel tank cap of BMW 530li be opened?

[OLily]

There are several reasons why the fuel tank cap of BMW 530li cannot be opened: the fuel tank cap is stuck, the fuel tank cap cable has fallen off, or the fuel tank cap cable is too long. Fuel tank cap stuck or rusted: It is relatively common for the fuel tank cap to be stuck or rusted, preventing it from opening. You can insert a small wooden piece into the gap of the fuel tank cap to pry it open. While prying, remember to pull the fuel tank cap's release switch. Fuel tank cap cable fallen off: If the fuel tank cap cable has fallen off, it can also prevent the fuel tank cap from opening. In this case, you can open the trunk. On the side of the fuel tank cap, there will be an interior panel that can be opened. After opening it, you will see the long cable that operates the fuel tank cap. Pull it once. If it doesn't work, try moving the movable part of the locking mechanism while pulling the cable. Some cars have a dedicated locking switch installed on the locking mechanism. Fuel tank cap cable too long: After prolonged use, the cable may stretch, causing it to not fully engage when the handle is pulled, thus preventing the fuel tank cap from opening. Another possibility is that the handle or the locking mechanism of the fuel tank cap is faulty. In this case, replacing the cable, handle, or locking mechanism should resolve the issue.