S550 2011 Japan import - problems with Ambient Lighting
I have the following issue with the three-color ambient lighting on a 2011 W221 S550 imported from Japan. At the moment, only the blue color lights up, and I cannot change either the brightness or the color of the lighting. The COMAND NTG 3.0 module was replaced with a European one so that the radio would work, but currently there is no option in it to select the color. Only a brightness adjustment from 0 to 5 appears, but it doesn’t work. Does anyone have an idea what the problem might be and could help with resolving it? Additionally, on the driver’s side door, not even the blue light is working.
This is Chatgpt explanation:
- The Japanese facelift (2009–2013) arrived a bit earlier than in Europe, but Mercedes Japan continued selling inventory and parts based on the pre-facelift NTG 3.0 system.
- Japan has strict radio frequency and navigation certification rules (ARIB standards), so Mercedes kept using NTG 3.0 hardware that was already certified for the local FM/AM bands, DVD region code, and GPS mapping format.
a bit of menu colours and one tick box for toggling Fade on or off









