How to Open the Fuel Tank Switch on a Mercedes-Benz V250?

3 Answers
Damien
07/25/25 8:04am
Press the brake pedal of the Mercedes-Benz. Press the one-touch start button to start the engine. The dashboard lights up, and the vehicle's electronic systems are powered on. Press the fuel tank cover control switch, and the fuel tank cover will automatically pop open. After exiting the vehicle, manually unscrew the plastic cap inside the fuel tank cover to open the fuel tank. Do not attempt to open the fuel tank cover when the doors are locked. After using the fuel tank for a period, perform a thorough cleaning and inspection of the fuel tank.
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OAndrew
08/10/25 6:45pm
I've always driven a Mercedes-Benz V250, and operating the fuel tank switch is actually quite simple. First, ensure the car is parked and turned off. In most cases, you don't even need to manually switch it—as long as the vehicle is unlocked, the fuel filler flap will automatically release, and a light press will pop it open. However, if you can't find the button, there's a fuel icon button located either below the driver's side door or on the dashboard near the steering wheel. Press it, and you'll hear a click when the flap opens. Some owners wonder why it won't open—it might be due to a central locking malfunction preventing full unlocking. Try locking and unlocking the car first. Regular maintenance of this component is important to avoid sand jams or button oxidation. At gas stations, it's common to see people struggling to open it, only to realize the car wasn't unlocked. For safety, never operate it while driving, and always lock the doors before opening the flap to prevent theft risks.
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DiAmara
08/10/25 6:46pm
Veteran drivers' experience tells you that the Mercedes-Benz V250 fuel tank cap is designed with great user-friendliness. After parking and turning off the engine, you can usually just walk to the left rear of the car, press the fuel tank cap to open it without needing an internal switch. Alternatively, check the central control area near the driver's seat inside the car; there's typically a small button there—just press it to get the job done. Why is it simple? The Mercedes-Benz locking system controls everything; unlocking the car automatically opens the cap. If pressing doesn’t work, it might be a battery issue or poor switch contact—try repeatedly unlocking with the remote key first. I’ve encountered the cap getting stuck a few times in rainy weather, and a quick spray of lubricant easily solved the problem. Remember to close the cap tightly after refueling to prevent fuel leakage accidents. After years of driving, I remind everyone not to modify the circuits affecting this function—keeping the original factory settings is the safest way to avoid unnecessary trouble.
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