
This type of fuel switch is relatively rare and is typically found on rugged off-road vehicles. Most family cars do not use a mechanical key to open it because the process is relatively complicated. The in-car switch is located in different positions depending on the model. Some may be on the left front door panel or on the center console, all marked with a fuel pump icon. Simply park the car, and the fuel attendant can refuel directly. However, when not parked for refueling, remember to always engage the central locking system; otherwise, the fuel filler cap can be opened.

As a seasoned Mazda driver with ten years of experience, I'm all too familiar with the fuel filler cap. Generally, there are two scenarios: The first is unlocking from inside the car. There's a lever marked with a fuel tank symbol on the floor near the driver's left foot—give it a firm pull, and you'll hear a 'click' from the rear wheel area. Then simply press the right side of the fuel cap to pop it open after getting out. The second method is key unlocking; older models may require inserting and turning the key in the small hole on the fuel cap. Always remember to turn off the engine before refueling. The recommended tire pressure values are also labeled inside the fuel cap, so it's a good opportunity to check your tires while you're at it.

Last time I helped a neighbor deal with a stuck fuel filler cap, there were three key points to note. First is the location of the interior release handle—for the Mazda3 and Mazda6, it's above the pedal on the driver's side. Second, you need to distinguish between models. The newer CX-5 models all come with a central locking system; simply press the right side of the fuel filler cap when the doors are unlocked to pop it open. Older models might require pulling the emergency release cord, which is usually hidden behind the side panel in the trunk. If it's frozen shut on a cold day, never force it open—instead, pour warm water over it for two minutes and try again. You can also apply some grease to the latch regularly for maintenance.

Operating the Mazda fuel tank cap is very simple: First, ensure the vehicle is completely turned off and in P (Park) gear; Second, locate the fuel tank release lever at the lower left side of the driver's seat; Third, pull it straight down all the way; Finally, go to the rear of the vehicle and press the right side of the fuel tank cap. Note two details: Don't hesitate to use force when pulling the lever—you must hear a 'click' sound indicating successful unlocking. After refueling, press the cap firmly three times to close it, and each time you should hear the latch engaging sound. If you often forget to unlock it, try setting a phone reminder saying 'Open fuel tank cap before refueling.'

The most practical method for beginners is to first ensure the vehicle is turned off, then bend down to look at the left side of the driver's seat. There's a silver pull-ring with a fuel pump symbol—use three fingers to pinch and pull it downward. The fuel tank cap will pop open slightly. Walk to the rear of the car and use your fingernail to pry open the cap. When refueling, it's recommended to hang the cap on the outer latch to prevent the fuel nozzle from pulling it off. To close, align it with the three grooves until you hear three 'click' sounds, confirming it's securely locked. This design is quite anti-theft, as the cap won't budge when the engine is off.


