
7 Series fuel tank cap does not have a physical button for opening. As is widely known, the BMW 7 Series uses an electronic remote key central locking system. When the car is unlocked and the key is nearby, simply press the fuel tank cap lightly, and it will open automatically. Opening Method 1: Use the remote key to unlock the BMW vehicle. The fuel tank of the BMW 7 Series is located on the right side of the car. When refueling, pay attention to the direction of the fuel tank opening, and press the fuel tank cap lightly to open it. Opening Method 2: After the outer fuel tank cap is opened, the inner fuel tank cap can be unscrewed and placed in the designated position for the inner cap.

That day I helped my friend move his 740, and I was quite nervous driving a car of this class for the first time. The fuel filler cap location is indeed different from ordinary cars—you have to stand at the right rear side of the car to see it. Did you notice the small triangular arrow indicator near the rear wheel on the C-pillar? That’s where the push-type fuel filler cap is hidden. Unlock the entire car with the key or press the unlock button on the center console, and the fuel filler cap will pop open automatically. German cars tend to place the fuel tank on the right side, supposedly a habit from the narrow roads in old European cities. The new 7 Series even has an ambient light on the fuel filler cap, casting a subtle blue glow during nighttime refueling, adding a sense of ceremony. The fuel filler design has just the right depth, preventing fuel splashes from dirtying the paint.

Our fleet often uses 7 Series to pick up VIPs at the airport, and we're very familiar with the fuel tank location. The slightly raised square above the rear wheel arch on the passenger side is the fuel filler cap, positioned at a height that allows operation without bending over. However, it's important to note that the fuel cap won't budge when the engine is running – last time a rookie driver couldn't open it no matter how hard they tried, sweating bullets in frustration. The new 7 Series has upgraded to electronic sensing; just tap it with the key nearby to open, which is super convenient. With a fuel tank capacity of about 78 liters, filling up with 95-octane gasoline costs nearly a thousand yuan, but it delivers a range of over 700 kilometers.

Owners who have driven three generations of 7 Series, let's chat. The fuel tank has always been located above the right rear wheel, unchanged from the third-generation F01 to the latest G70. Three steps to find the fuel tank: 1. Walk to the right side of the car 2. Locate the area between the rear door and the trunk 3. Look for the square cover with the BMW logo. However, older models require inserting and turning the key, while newer ones simply pop open with a light press. A little-known fact: This design is for convenient right-side parking refueling, but some owners complain about having to drag the fuel hose longer when using left-side pumps. Before refueling, remember to check the arrow direction on the dashboard to avoid parking on the wrong side.

When accompanying my bestie to pick up her new 7 Series, I specifically learned about the fuel tank. Under the metal cover on the right rear of the body lies a massive 76-liter fuel tank. designers explained placing it on the right side balances the vehicle's weight. In practical use, it's genuinely convenient—gas station attendants don't need to cross traffic to operate it. The fuel filler has an anti-siphoning rotary valve that only opens when the nozzle is fully inserted. Be cautious in rainy weather: wipe the surrounding area before opening the fuel cap to prevent water from entering the filler neck. In emergencies, if you can't locate the button, there's a mechanical pull ring under the driver's seat for forced opening.

As a car designer, I truly appreciate the fuel tank layout logic of the 7 Series. Positioning it above the right rear wheel serves three purposes: first, to avoid the exhaust system and reduce safety hazards; second, to balance the weight distribution with the on the opposite side; third, to enhance crash protection by utilizing the rear suspension support structure. The fuel filler cap with its damped hinge opens at a precise 65-degree angle, preventing any contact with the adjacent bodywork. During a visit to the Munich factory, I witnessed the testing process where engineering vehicles repeatedly opened and closed the fuel filler cap 100,000 times to verify durability. When refueling, pay attention to the spiral grooves on the inner cap—it requires three counterclockwise turns to open the secondary anti-leak barrier.


