Question about 2004 BMW Z4

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Good morning.. Yesterday afternoon as I drove home..in my (Z4 2003 3.0L) Radio would cut off and on... Sounds easy right.. Loose connection . Well the mystery is I'll pushed the off button, and for a few seconds the radio will turn off then back on.. even the screen will flash (disabled ) then return back on/off .. CD works the same.. Ive only had my Z4 sense July of this year.. What do you think ??? Any body have this problem ???? Thanks for your help.... Steve

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  • nfacman Sep 28, 2010

    Thanks Vetteman.. anybody out there agree.. Where can i get this fixed without have to take it to a dealer ..

    Thank you again ... Steve

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If the unit detects that there's a CD in the unit it thinks it should turn on. The other thing it might be doing is getting disconnected and reconnected ( the fuse box is well known for dirty connections ) with out removing the fuses, you can roll( turn the fuse) in it's holder to make a better connection. the key switch can do this too as you hang too many keys on it. Try removing the extra keys off the car key and see in the problem goes away.

Posted on Sep 28, 2010

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  • Master
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The control board lost one of the resistors in the stereo. When the resistance builds up it will turn the stereo off then back on, and do some really crazy things. You don't have a loose connection. Your problem is on the control board. It is like the motherboard of the stereo.

Posted on Sep 28, 2010

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