I am selling New Mercedes Trip Computers for a fraction of the dealership $
55.00 plus 3.85 for priority shipping Along with free instructions 620kb emailed to you, on how to retrofit them to model that didn't come with them. It takes less than an hour and will pay for itself in the gas it saves.
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link will show you some of the features, If you go to the link andselect overhead consoles , Then click on the play arrow.