#Mercedes immo off serial number#
Each time the key is used to start the vehicle, DAS reads both the fixed serial number and the rolling code. Each key for this system contains an EEPROM chip that stores a fixed serial number and a rolling code. Here we give you some specific information about MB security systems:Īll Mercedes-Benz vehicles manufactured in about the last ten years use a drive authorization system (DAS) to electronically validate the key(s) used to start the vehicle.