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Is there such thing as a "special key" for modern Mercedes cars?

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Old 08-23-2023, 11:52 AM
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2008 W204
Is there such thing as a "special key" for modern Mercedes cars?
If you read the EIS with MB star or a code scanner, in a 2008 W204 for example, there are 8 key slots and 1 and 2 are shown as "enabled" and "used" that are the two regular keys. However there is also a slot above key slot 1 that reads "special key". Does anyone know what this is for? Is there such thing as a special key that is used by the factory or techs?

On a separate note, I noticed this black style key in a 2012 S550. It may be different than the special key and just a MB Sprinter style key that somehow got programmed to the car. Anyone know?

Last edited by LandSeaAir; 08-23-2023 at 12:29 PM.
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