I ordered a new door lock from MB and it also came with a key... It works everything. the key with the red dot indicates that it is a valet key, the only thing it wont open is the glove box... (please correct me if im wrong, but im 99% sure)

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2