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  1. Understanding Firmware/Engineering Mode

    CLA Modifications / DIY
    Hi all! Just purchased a 2016 CLA Edition Orange. Dealer said it had CarPlay but it does not. Trying to determine if an OBD activator would work. I am able to access engineering mode but once there I don’t know what I’m looking for. How do I tell what version firmware I have or if the head unit...
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