Fixes for "echo" issues during hands-free calls. How to Check Your Current Firmware Version
at the bottom of the screen, replacing the brown theme found in NTG 4.5. Update Options & Modern Upgrades
Warning: If you attempt to update the firmware via unauthorized internet downloads without a stable external battery charger connected to your car, a voltage drop will ruin the head unit permanently. Troubleshooting Common Update Issues System Asks for an Anti-Theft PIN ntg 47 firmware update updated
To view your exact firmware build, access the : Turn the vehicle ignition to position 1 or 2.
Whether you take it to a dealer, an independent specialist, or embark on a DIY journey with the help of online forums, keeping your COMAND system current is one of the best ways to maintain the luxury and technology you love in your Mercedes-Benz. Don't let your infotainment system fall behind—give it the update it deserves and enjoy a smoother, safer, and more connected driving experience. Fixes for "echo" issues during hands-free calls
Unlike newer vehicles that can receive Over-The-Air (OTA) updates, the process for NTG 4.7 is more hands-on and typically requires a dealer visit with specialized tools. However, there are also aftermarket options available.
The last official North American map update was [v20, released around 2019 1.2.3 ]. European versions remained available longer. Troubleshooting Common Update Issues System Asks for an
The initial attempt to push the scheduled security patch to the NTG 47 telemetry array failed at 02:14 UTC. Error code 0x7E — "Incomplete delta header." No critical systems were affected, but the update flag remained in a pending state.
This comprehensive guide breaks down how to completely update your system using the highly searched framework: . Why Update Your NTG 4.7 System?
The most significant release focuses on stability and feature restoration. Here is the complete changelog based on Mercedes TSB (Technical Service Bulletin) S90.00-P-0018A (revised 2025):