Mercedes NTG4 Audio20 Engineering Mode (W204 C-Class)

Hidden menu in Mercedes NTG4 #Audio20 system will let you check some details about the main unit, voltage & temperature, unit DTCs, MOST connected devices, radio tuner and more. This was shot in #Mercedes C-Class W204, but the same system was available in other Mercedes-Benz cars.

ℹ️ How to enter hidden menu in Mercedes #NTG4 Audio20
Turn the ignition on, wait for the system to fully start. Press and hold buttons [Hang-up] + [#] + [1]. Wait for the hidden engineering menu to appear on the display and release the buttons. Push and pull the control knob to navigate though the menu.

0:00 Mercedes C-Class W204
0:07 NTG4 Audio 20 system
0:25 Button combination
0:50 Entering Engineering Menu
1:00 Button controls
1:15 Part numbers
1:35 Temperature and voltage
1:45 Diagnostic Trouble Codes
2:00 Radio tuner diagnostics
2:33 Audio settings
3:47 Exit hidden menu

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