You will need the working key and the vehicle at the locksmith to make a new key. Remember that having a working key makes creating a spare key much easier. ![]() While it is possible to make a used Mercedes-Benz key virgin, most locksmiths buy new “virgin” Mercedes keys and then use a key programmer such as CGDI MB Key Programmer or VVDI Key Programmer to program the key to the car. The EEPROM memory has to be erased from the chip, allowing you to program the key to another car. You must remove the main chip (NEC, BGA, FBS3) from the circuit board. The process of programming a used Mercedes key is quite involved. A locksmith with the right tools can program even a used Mercedes-Benz key to work on another car. The answer you get from the dealer is: “A used Mercedes-Benz key can not be programmed once it is synchronized to a car.” A used Mercedes-Benz key can be programmed but not at a Mercedes-Benz dealership. It requires specialized tools, and in most cases, it is cheaper to buy a new “virgin” key than using a tool such as CGDI MB Programmer to program it to your Mercedes-Benz.ĭon’t head over to the Mercedes-Benz dealership with a used key from eBay and ask them to program it. ![]()
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