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I'm not 100% sure but if I were to venture a guess most vehicle infotainment systems usually only have an SD slot available for GPS/Map updates. My guess would be that no SD card will likely work unless it's been specifically formatted with proprietary software from Mercedes and will only work to update the head unit.
Sorry, there was a problem. Please try again later.shot, The Mercedes Benz GLC 300 supports a specific microSD card that contains navigational information. Third-party microSD cards do not have guaranteed compatibility. ~Samsung Pro
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