
The 3 Series does not have an interior trunk switch. Its trunk switch is located on the trunk lid, just above the rear license plate. The trunk of the BMW 3 Series can also be opened using the button on the remote key. The BMW 3 Series is a sporty B-segment sedan under the BMW brand, available in both long-wheelbase and standard-wheelbase versions in the domestic market. The domestically produced BMW 3 Series is equipped with three engines: a low-power 2.0-liter turbocharged engine, a mid-power 2.0-liter turbocharged engine, and a high-power 2.0-liter turbocharged engine. In terms of suspension, the BMW 3 Series features a double-joint independent suspension at the front and a multi-link independent suspension at the rear.

I've been driving BMWs for many years, and the location of the interior trunk release switch really depends on the specific model. In the new 3 Series, it's usually right on the inner side of the driver's door - you can easily reach that small button with the rear emblem. If you're driving an older model, you might need to bend down to find a small lever below the steering wheel on the left side, just press it firmly downward. Nowadays though, many car keys have a one-touch trunk opening function, which is actually more convenient. Just a friendly reminder - if the switch isn't working, don't force it. It might be a blown fuse or dirty contacts; gently pry open the plastic cover and clean it. At night, the backlight on the door will help locate the switch, which is a pretty thoughtful design.

Veteran drivers' experience tells you that the location of the 3 Series trunk switch varies by generation. For my 2020 model, just press the button near the driver's door handle. I remember the first time I couldn't find it, I had to check the manual—turns out the design is consistent across the lineup, always within the driver's reach. Once, a friend accidentally triggered the switch, which almost caused trouble, so I always manually lock the trunk after parking. By the way, the new G20 series also supports kick-to-open sensing, which is super handy when you're carrying stuff in the rain, but the in-car switch remains the most reliable option.

Researching car design reveals that the trunk release button of the 3 Series is never placed in an obvious location. Currently, the mainstream position is in the middle of the driver's door trim panel, aligned with the window control buttons. The key is to locate that rectangular icon with a wavy line. Some car enthusiasts who have modified their suspensions complain about not being able to reach the button, but this is actually due to the seat being adjusted too far back. It's recommended to leave about 20 cm of movement space when setting memory seats, making it easier to turn and press the button. Electronic switches are more responsive than mechanical levers, but remember there's an emergency pull ring inside the trunk in case of a dead battery.

Just helped my neighbor aunt locate the tailgate switch for her 3 Series - it's actually at the bottom of the glovebox, diagonally above the accelerator pedal. Taught her to identify that sedan-with-raised-trunk symbol, and pressing it makes a click sound when unlocking. Surprisingly discovered some owners don't know the switch has two-stage operation: light press only unlocks, while firm press pops it open. If the button gets sticky after car washes, just apply some electronic contact cleaner. Compared to American cars' standalone button design, BMW's integrated approach saves more space.

The 3 Series' switch placement hides thoughtful design: The driver's seat is the core control zone, so the trunk button is inevitably within the left hand's operating radius. It's located at the far left of the master window control cluster – a metallic-textured button with anti-slip grooves. Once during a test drive with a novice, I noticed they kept looking down to locate buttons, which actually compromises driving safety. The correct method is to naturally extend your thumb downward while resting your left hand on the steering wheel. Bonus tip: Holding the remote unlock button for three seconds synchronously lowers all windows including the trunk.


