What to Do When the Mercedes Key is Locked in the Trunk?

[DiAddyson]

If you are not far from home and have enough time, the owner can retrieve the spare key to open the car trunk. The trunk and the rear seats of the car are connected. If the car door is not yet closed, you can retrieve the key by folding down the rear seats.

[CarlosRose]

Once when I locked my Mercedes key in the trunk, the first thing I did after calming down was to check if there was a hidden mechanical key slot on the key—Mercedes smart keys often have a button at the bottom that pops out a small metal piece when pressed. I tried inserting it into the small lock hole on the trunk, and luckily it opened; alternatively, you can check if there's a hidden slot on the door handle. If that doesn’t work, don’t force it—it could damage the car and be dangerous. Immediately download the Mercedes ME app, log in to your account, and remotely unlock the trunk—most modern models support this feature, which is super convenient. If you still can’t open it, call Mercedes roadside assistance—they’ll bring tools and quickly resolve the issue. At the same time, reflect on preventive measures, such as keeping a spare key in a family member’s wallet or an office drawer to avoid repeating the mistake. The benefits of a connected car really shine in these situations.