2005 S430 Command Unlock
I have the widescreen command system and I can play dvds.
I am trying to unlock it so it displays the video when the car is moving.
Have tried holding down:
MUTE+SERVICE+Phone (End Call)
MUTE+Phone (End Call)+SERVICE
No luck so far...
One document says to hold it for around 5 secs, the other document says 45 secs. Still no luck!
Any ideas?
thanks
Chucksta
You should complete your profile so that responders know whether we are dealing with a U.S., European, or Asian specification car. It makes a difference.
I can now access some sort of engineering menu (but it does not say 'welcome to engineering mode')
I think it maybe a new engineering mode for 2005 cars. It displays
- Info on software and hardware
- MOST
- Devices
- Diagnositcs
- Exit
This seems to be similar to the pictures of the engineering menu I have seen
But I can't seem to get the hidden menus to appear.
Have tried using: *#< and #*<
But still no luck....

You should complete your profile so that responders know whether we are dealing with a U.S., European, or Asian specification car. It makes a difference.
For W220/C215/R230 there was NEVER a unlock feature from service menu available. This fairytale came from some early units which were installed in w211 R171 etc which look very simillar.
But i bet this topic will always come up again because people like the idea of secret menus and hidden features ;-)
Cheers, Frank.
If it is a EURO Model. this unit should work for you.
https://www.wilhelmy-it.de/
bijansultani@gmail.com
I got into the same menu below but thats it. I Held Mute+1+3.
I can now access some sort of engineering menu (but it does not say 'welcome to engineering mode')
I think it maybe a new engineering mode for 2005 cars. It displays
- Info on software and hardware
- MOST
- Devices
- Diagnositcs
- Exit
This seems to be similar to the pictures of the engineering menu I have seen
But I can't seem to get the hidden menus to appear.
Have tried using: *#< and #*<
But still no luck....



