Question about 2003 Mercedes-Benz C-Class

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Electronic key My electronic key is unable to unlock the car from a distance any longer

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  • toine24 Dec 19, 2008

    I want to change the batteries, but who can tell me HOW to open the key?

    regards,
    Toine

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  • 32 Answers

Do you have another key that works fine? If so, then try replacing the batteries in the key that doesn't work. If that makes no difference, then you likely need a new key. If you do have another available key, and it also isn't working correctly, then you likely have an antenna/control module issue and the vehicle will need a visit to the dealer.

Posted on Nov 14, 2008

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Posted on Jan 02, 2017

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