Date registered: Jul 2005
Vehicle: 90 300E, 99 ML430, 00 ML320, 05 E500 4matic Wagon
Mentioned: 18 Post(s)
Quoted: 886 Post(s)
There is no code needed if it is the COMAND unit with Navi.
If it is asking for a code all you need to do is call the dealer.
For the windows hit the button for each one and roll them all the way down. Then for each one pull up on the switch until the window is closed and keep holding the switch for 10 seconds.
For the sliding roof. slide it all the way back. Then push the button to slide it forward keeping your finger on the button all the way and hold it for ten seconds once closed.
You will have to set the seat, mirror and other memory options again. You just do that the same way it has always been done.