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Heated rear window/radio interference

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by wooly, Jan 19, 2011.

  1. wooly

    wooly Member

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    I have a 2005 S Class on which the radio sometimes goes bang and switches off. All I do is switch the power back on and it works fine again for weeks or months. My current problem with it is that if I have the radio on, as soon as I turn on the heated rear window there is considerable intereference to the signal and the radio becomes unuseable (the CD and satnav are still fine, so it appears there's an aerial problem). The same fault existed when I bought the car a couple of years ago and after replacing the amplifier, the dealer decided it was the rear window itself which needed replacing (at a cost of well over a grand). The dealer met the cost of the repair and other than the occasional "bang and switch off" issue mentioned above, the unit has been fine until yesterday when the HRW problem has returned.

    Is this a known fault and is there a cheaper repair option that anyone knows of, or am I stuck with having to have the window replaced again?
     
  2. SheriffJW

    SheriffJW Senior Member

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    Your Mercedes:
    C250cdi Blueefficiency Sport Saloon
    More than likely a corroded terminal.
     
  3. OP
    wooly

    wooly Member

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    Thanks, but corroded in less than 2 years?
     
  4. mikestrivens

    mikestrivens Senior Member

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    Your Mercedes:
    1995 W124 320TE, 1998 R129 SL500, 2016 Triumph Tiger 800 XCx
    Condensation would do it it in a week or two
     

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