Write down the full 14-digit serial number (e.g., VWZ1Z2G1234567 ). 2.2 Alternative: Using the "Hidden Menu" (Without Removal – Limited Success) Some RCD310 firmware versions show the serial number on screen.
Radio removal keys (two U-shaped metal tools, ~$5 online) or stiff wires. Code Calculator For Vw Rcd310
EEPROM programmer (CH341A, ~$10), soldering skills or clip, software like "VAG Eeprom Programmer". Write down the full 14-digit serial number (e