Some older 4-digit codes used a simpler offset, but modern 5-digit codes require a database lookup. Step 3: Entering the Code
Before you can use a calculator, you need the "ID" of your radio. You can usually find this in two ways:
Once you have the serial number, you simply input it into a Becker radio code calculator tool.
If you are driving a Mercedes, the radio might have a Mercedes part number (starting with "A") and a Becker serial number. for the code calculator to ensure accuracy. Is Using a Calculator Safe?
If your code is 12345, you press button 1 , then 2 , then 3 , and so on.