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Originally Posted by davidr
What is the part number of the CID screen you have?
Where did you get it? Are you sure it works ok?
Also, where did the nav computer come from - what part number
I'd guess you have a faulty screen or have connected the cables incorrectly.
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Hi,
the partnumber I don't know now, I will see next week.
I bought it in ebay and I another one that not work too...
I check all connections and are ok and in BMW dealer no errors found.
Now I will change MK4 with a friend to check if all works and if mine MK4 works in his car.
Thanks for all atention.
Regards from Portugal.