What is the reason why Mercedes-Benz keeps prompting a storage card abnormality?
2 Answers
Storage card abnormality is generally caused by an issue with the dashcam's storage card. The dashcam's storage card can automatically store or overwrite data. Once it fails to store or overwrite, the vehicle will display a prompt. Formatting the storage card can usually resolve the issue. If formatting doesn't work or the prompt reappears shortly after, then the card needs to be replaced. Differences between car storage cards and phone storage cards: Different entities: Car memory cards are a new generation of memory devices based on semiconductor flash memory; phone memory cards are extremely small flash memory cards, originally called T-Flash and later renamed Trans-Flash, and finally Micro-SD after being adopted by the SD Association (SDA). Different characteristics: Car memory cards are small in size, offer fast data transfer speeds, and support hot-swapping; phone memory cards are even smaller and can be converted for use with Mini-SD and standard SD cards. Most mainstream manufacturers support Micro-SD, while the slightly larger MiniSD is rarely used anymore. Different applications: Car memory cards are widely used in portable devices such as digital cameras, tablets, and multimedia players; phone memory cards are mainly used in mobile phones, but due to their tiny size and increasing storage capacity, they are now also used in GPS devices, portable music players, and some flash memory drives.
I have encountered the abnormal memory card warning several times while driving my Mercedes-Benz. Common causes include a damaged or corrupted memory card, such as from being jolted or accidentally dropped; incompatible card format—the Mercedes system is particularly particular about card types, and using the wrong SD card or incorrect capacity will trigger an alert; or a system software bug that requires an update, especially for the navigation map or entertainment module. Poor contact is also a major issue—if the card isn’t securely inserted in the slot, it can loosen and trigger a warning. I recommend first removing the card to check for physical damage, cleaning the metal contacts, and reinserting it firmly. If that doesn’t work, back up the data and format the card, or update the vehicle’s software to the latest version. If the issue persists, it might indicate a fault in the car’s computer module, requiring professional inspection and repair—otherwise, navigation failure on the highway can be very dangerous.
