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I own a 2004 525i and I get this intermittent loud static in the radio which blocks out the music and sometimes the radio just dies completely for several seconds and then it comes back on. This might last for several seconds to a minute, then it is totally fine. Sometimes a few days go by and there is no problem at all and then it starts up again, and once it starts, it continues. If I turn the radio off during the the times when the radio cuts out or the loud static takes charge, the radio will not turn on again until the static clears. Any help with this would be appreciated.

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  • mflyer Jul 14, 2009

    The exact same thing happens when I am using the CD player . I don't have tinted windows and I really don't think it is the antenna. Someone mentioned a bad processer, since the radio is not a separate unit, it is connected to other functions in the panel.

  • mflyer Jul 14, 2009

    I DO NOT have tinted windows and the same thing happens when operating the CD. One radio shop I went to said I have a bad processor since the radio is not a SEPARATE unit. It operates with other functions in the panel. He also said it is NOT the antenna. I just needed another opinion.

  • mflyer Jul 14, 2009

    So you don't think it is a faulty processor? This is what a radio repair shop told me and of course they can't fix that problem -- it is a dealer fix and he said it was very expensive. I do not have bluetooth or BMW Assist. Could you please tell me where the TCU is located in the trunk so that I can remove it?

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Are your windows Tinted especially the back one? The antenna is in the window ant the tinting will cause the static, BMWs are very famous for having this problem. There are aftermarket window mount antennas and FM boosters you may want to try to help reduce it. Go to an audio shop or search online for one.

One part that confuses me in your statement is when you turn it off, it won't turn back on, Do you mean the cd player won't even work during this time or just the AM and FM bands as the cd player should work?


Benjamin

Posted on Jul 13, 2009

  • Benjamin Patri
    Benjamin Patri Jul 14, 2009

    Alright since the Cd player does the same thing. Then the problem is in the TCU (Telephone Control Unit ). A TCU replacement costs a ton which is why I didn't suggest it at first.

    Here is the solution. Go into the trunk
    and remove the TCU. It is not required for any of the car functions
    except for bluetooth and BMW Assist (which only matters if you actually
    pay the subscription fee for that). Once you remove the TCU, the
    radio/CD static problem should be fixed, and the only difference now is that
    when you go into the "Communications" menu, instead of saying "No
    Signal", it should say "No Cell Phone Installed". Let me know if this fixes the radio problem


  • Benjamin Patri
    Benjamin Patri Jul 14, 2009

    Well if you don't have bluetooth, then you won't have the TCU and so the processor is probably the next option in being a problem especially if a shop diagnosed it as being bad. These radios are very expensive to fix, so you may be better off getting a new aftermarket one instead of fixing this one then since you don't have any of the fancy extras with yours.

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