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How to open key?

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Old Feb 15, 2026 | 07:52 AM
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W212
How to open key?

Hi,

My key will not always work. When pressing very strongly on the open button it works. Probably a small issue with the button. How can I open the key?

Thanks,
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Old Feb 15, 2026 | 04:18 PM
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Are you asking how to remove the side panel so that you could replace the battery? or something else? Please clarify
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Old Feb 16, 2026 | 10:05 AM
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Originally Posted by Sunnyslope48
Are you asking how to remove the side panel so that you could replace the battery? or something else? Please clarify
He is asking how to take the key apart to get to the buttons inside as he thinks he has a button problem.
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Old Feb 17, 2026 | 10:34 PM
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Old Feb 19, 2026 | 02:49 PM
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If you have a single battery key with triangular panic button, getting to the PCB can require destroying the key body as they are thermally glued together.
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