Note that a Firmware Update (system software) is different from a Map Update . However, the 2025-2026 map updates (V25.5) often require a recent firmware base to function optimally. Benefits of the NTG 4.7 Firmware Update Updating your NTG 4.7 provides several advantages:
Simply updates the geographic data, points of interest (POIs), and road layouts used by the navigation application.
Before attempting an update, check what version you are currently running:
Do not turn off the car during the update, as it can take up to 90 minutes. 5. Potential Issues and FAQs
As of early 2026, the most recent developments for the NTG 4.7 platform focus on map data and aftermarket integration rather than core OS overhauls: ntg 47 firmware update updated
While MBUX (NTG 5.0 and 6.0) is now standard in newer vehicles, millions of Mercedes models still rely on NTG 4.7. Keeping this firmware updated is crucial for smartphone compatibility and system stability.
Before initiating an update, gather the correct tools and verify your current configuration to prevent bricking your head unit. Identify Your System
If your update includes navigation data, ensure you have the unique (PIN) mapped to your vehicle’s VIN. Step 3: Executing the Update
The NTG 4.7 (New Telematics Generation) is an iteration of the Mercedes-Benz Comand infotainment platform. It succeeded NTG 4.5, bringing faster processing speeds, improved internal storage, and better hands-free Bluetooth profiles. Note that a Firmware Update (system software) is
Scroll down to "System Information" to view your current bootloader and firmware version. Step 2: Prepare the Update Files
Ensure you are using the correct code for your VIN and that the map version matches the code.
This usually indicates a corrupted file on the storage drive or a laser/read error if using a DVD disc. Do not turn off the car immediately. Wait at least 15 minutes. If it remains entirely frozen, power down, clean the media tool, or use a different USB brand, and restart the process. Post-Update Checklist
The system should automatically detect the update. If not, go to the navigation menu to prompt the update. Before attempting an update, check what version you
If your car has never received this update, you are essentially driving with a computer from 2012—prone to crashes and security flaws. By investing 30 minutes and the correct files, you preserve your vehicle’s functionality, safety, and enjoyment.
Updates the road data. As of 2026, the latest map versions (e.g., Europe V20 North America V20
Updated firmware can fix issues with the factory Bluetooth chipset (often the CSR chipset), which can drop calls in areas with heavy signal interference. The Update Process
There are two primary methods to update the NTG 4.7 system: via the official Mercedes-Benz dealer network (using the XENTRY diagnostics system) or via a manual update disc/USB if you are installing a map-and-firmware bundled package. Step 1: Access the Engineering Menu (To Check Versions)