What does it look like: A vehicle with a fuel cap ejected, or it will say “Check Fuel Cap” on the dashboard.
What color is it: Orange.
What does it mean: The fuel cap light is a critical component of the evaporative emissions (EVAP) system of your BMW, and it needs to be sealed properly so nothing escapes to the outside air. If the gas cap is damaged or not attached properly to the fuel tank, it may cause issues with the engine’s efficiency, malfunction within the EVAP system, or a fuel leak. One of those problems may be why your fuel cap light is illuminated.
What to do when it comes on: If the light comes on while driving, there is no need to panic. Safely pull your BMW over and check the cap, and re-secure if necessary. Sometimes the light comes on if the fuel cap is missing, loose or too tight.
What steps need to be taken to turn light off: If after checking your gas cap, and the light still persists u after a few miles of driving or reappears on multiple days, there may be damage that needs to be repaired by an expert BMW technician.
Your certified BMW mechanic will inspect the fuel cap to see if it is damaged and check for any leaks.