you have to use your menu buttons on your steering wheel to get to the right place. sorry cant tell you exactly cuz all Mercedes are a little diffrent.
Code a3
If it is 1994; 1995 you can unplug the main (starter) battery of the car for few minutes, but after you do that you need the code for the CD player - you can call Mercedes for the code.
A Mercedes capable scan tool is required.
If you mean that you have a phone service which has the wrong area code in its number, you need to contact your phone service provider to get it changed.
Replace transmission fluid
The country code and area code of Mercedes, Uruguay is 598, (0)53.
To retrieve the radio code for a Mercedes ML 430, check the owner's manual, as the code is often listed there. If you can't find it, you can remove the radio and check for a serial number on the unit, which you can then provide to a Mercedes dealership or authorized service center to obtain the code. Alternatively, some online services can help decode it using the serial number. Always ensure that you have proof of ownership when requesting assistance.
I got the radio code directly from the service dept. at a Mercedes dealer. Most all cars are in the computer system along with detailed information. Hope this helps.
Each radio is assigned a unique code when made. There is no "universal" code for any Mercedes radio.
Change oilRotate tiresChange transmission fluid
Check your owners manual but I believe its a maintenance reminder for your oil to be changed.
code radio perdu