Where is the fuel filler switch on the Mercedes S500?
2 Answers
The fuel filler switch on the Mercedes S500 is located next to the fuel tank cap on the right side. Since it is an electromagnetic lock, you need to manually trigger it to open the fuel tank cap. Precautions for refueling: Pay attention to the gasoline octane rating. The gasoline octane rating refers to the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane rating, the stronger the anti-knock performance. Vehicles with high engine compression ratios require higher-octane gasoline. Mixing different octane ratings is not recommended: Owners should still follow the instructions in the car manual or the labels on the fuel tank cap to correctly add gasoline. Due to compression ratio reasons, vehicles requiring high-octane gasoline need gasoline with better anti-knock performance. Using low-octane gasoline will cause engine knocking. Even if a vehicle designed for low-octane gasoline is filled with high-octane gasoline, it will not experience knocking, but excessive carbon deposits may occur due to insufficient cylinder temperature and pressure.
I've been driving this car for a long time. The fuel filler switch in the Mercedes-Benz S500 is thoughtfully designed, located on the inner floor near the driver's seat, close to the left foot. It's usually a plastic button or a press-type lever. When operating, just stop the engine and press gently to pop open the fuel tank cap. The placement is excellent—drivers don't need to fumble around; they can control it right by their feet, making it both safe and convenient. Mercedes-Benz cars often place it here because it prevents accidental activation, avoiding unintended opening while driving. If you can't find it, it might also be on the door panel, but most often it's on the floor—just look for that small protruding button. Remember to close the cap tightly when refueling, otherwise the indicator light will come on.
