How to Open a Mercedes-Benz Key?

2 Answers
DiAmara
07/29/25 6:21am
Method to open a Mercedes-Benz key: 1. Press the black button to the other side and pull out the mechanical key; 2. Insert the mechanical key into the small groove inside to act as a screwdriver; 3. Pry forcefully, and the key will open with the applied force. Mercedes-Benz is a German automotive brand, and the company also offers models such as the A-Class, B-Class, C-Class, E-Class, S-Class, CLA, CLS, GLA, and GLK. Taking the Mercedes-Benz CLS as an example, this car has a length, width, and height of 4988mm, 1890mm, and 1424mm respectively, with a wheelbase of 2939mm. In terms of appearance, the car's wide and towering front end delivers a more robust visual effect, while the side lines incorporate more sporty elements while maintaining the elegant curves of the previous model.
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GarrettAnn
08/12/25 9:48am
I recently opened up my Mercedes key fob to replace the battery, and the process was quite challenging. The key housing is usually secured with plastic clips, without any screws, so you'll need a thin plastic tool like the edge of a credit card or a professional pry bar. Gently insert it along the seam of the key, being careful not to use too much force to avoid breaking the clips. I started from the side or bottom, slowly prying it open until I heard a slight 'click' sound, indicating it was separated. After opening the cover, I saw the battery compartment. Remember the orientation of the positive and negative terminals—the battery is typically a CR2025, so don't install it backward. After replacing the battery, close the cover and press firmly to ensure the clips snap back into place. I also tested the remote buttons to make sure they worked properly, in case any internal wiring had loosened. Doing it myself saved me a trip to the repair shop, but I recommend working in a clean environment to avoid dust getting into the electronics. The whole process took about ten minutes, but you need to be careful to avoid scratching the key or damaging the circuit.
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