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I traded my old car for a 2003 BMW 745i and it's in ok shape but hardly anything works as far as electronics. The DVD navigation screen doesn't come on at all, none of the passenger side buttons work, window screens doesn't work, and a bunch of lights doesn't work...please help


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4DoorWhore
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Yikes. The 7 Series is a very complicated vehicle. The 2003 is the second year of the E65 model run and as such featured many new components not seen on the E38. They were known for issues.

Best bet is start checking fuses then tracing wires.
 
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