: If the unit is functional but you want the code for future use, you can enter Engineering Mode by holding the button for 5 seconds, followed by the Top-Right cursor button until the screen changes. VCDS / VAG-COM : Connect a diagnostic cable, open Module #56 , and select Advance ID (1A) . The serial number will be listed there. Physical Label
If you're not ready to use a third-party calculator, you might also consider: audi rnse code calculator
To use an offline calculator or generator, you generally need the Serial Number and Model Index from the sticker on top of the physical metal RNS-E unit. : If the unit is functional but you