What is the reason why the USB device of Mercedes-Benz C200 cannot be read?

[DeAshley]

Mercedes-Benz C200 USB device cannot be read because the power of the car USB interface and the mobile phone interface is insufficient. USB car charger: Usually referred to as USB car charger for short. It takes advantage of the universality of USB, which is widely used in various charging interfaces. Combined with its application in cars, it converts the 12V-DC and 24V-DC in the car into the common DC-5V voltage for USB and other charging devices. Common specifications of USB car chargers: Output: 5V-DC-500mA; 5V-DC-700mA; 5V-DC-1000mA; 5V-DC-2000mA.

[NorahLynn]

I've been driving a Mercedes-Benz C200 for two years and have encountered the issue of USB devices not being recognized several times, each with different causes. The first time, the USB drive didn't respond at all. After a lot of troubleshooting, I realized the issue was the drive's format: the C200 only recognizes FAT32, and my USB was NTFS. I had to reformat it on my computer to make it work. The second time, the port was clogged with dust, and a gentle cleaning with a cotton swab restored functionality. Another possible cause is insufficient power supply. The car's USB ports have limited power output, so older, high-capacity USB drives or incompatible cables might not work. Testing with a smaller device can help identify the issue. Software updates are also crucial. If the car's system hasn't been updated for a long time, bugs can occur. I recommend regularly visiting the dealership for updates or checking the menu for new versions. If none of these solutions work, the port might be internally damaged or have a circuit issue, and timely repairs can prevent further complications. Although it's a minor issue, it affects music and navigation, so I believe addressing it early reduces hassle and ensures driving enjoyment isn't compromised.

[SanAmy]

As someone who frequently tinkers with automotive electronics, I've analyzed quite a few common factors behind the Mercedes-Benz C200's USB reading failures. The core issue is compatibility: this model has a limited USB support list, with FAT32 being the standard file system—exFAT or NTFS are incompatible, and using the wrong format will result in non-recognition; always verify the device format on a computer before connecting. Next is physical damage: dust accumulation, oxidation in the USB port, or frequent plugging/unplugging can cause poor contact, which regular cleaning can prevent. Software issues are also common—if the infotainment system runs an outdated version, an OTA update or flashing the latest firmware at a dealership may resolve conflicts. Power instability is another concern, such as high-power phone charging consuming resources; testing with multiple devices can help pinpoint the root cause. Users are advised to first try a simple USB drive for testing, then adjust USB permissions via the settings menu. For complex cases like circuit faults, professional tools are required, and timely repairs are recommended to avoid safety hazards.

[SanIsabel]

It's quite common to encounter USB reading issues. For a Mercedes-Benz C200, first check if the device is functioning properly. Try plugging it into a computer to see if it's recognized—if it works on the computer, the issue lies with the car. The USB port might be dusty; a simple cleaning and reinsertion may help. Alternatively, the connection could be loose—try plugging it in a few times to see if it responds. Incompatible devices could also be the culprit; older USB drives might not be supported by the C200, so try a newer, smaller-capacity device for testing. Also, check the vehicle's system settings—the USB option might be disabled in the settings menu. Sometimes, restarting the vehicle can resolve the issue. Don’t overlook software bugs; outdated systems can cause malfunctions, so contacting a dealership for an update usually helps. Insufficient power supply, especially if charging a phone, might interfere—avoid using multiple devices simultaneously. In short, troubleshoot step by step, starting with the simplest solutions, and avoid tampering randomly to prevent damage.