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11-26-2008, 11:57 AM | #1 |
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Radio + Rear Defroster = No Reception
So it was cold out this morning, and I had ice form on my windows overnight. Got in car, started driving, and turned on rear defroster. I switched from iPod to radio, and had no reception. Lots of static on most of the channels, and intermittent static on the others. Not one channel was working right. Now I know these channels come in, since I was near my house. The engineer in me instantly said "turn the defroster off", and as soon as I hit the button, the radio station came in clear and perfect. As soon as i turned the defroster back on, static...
So, I mean, is this normal? I know that there are a lot of wires in the rear windshield, which would create a big magnetic field when turned off, which could kill radio reception... And I assume the antenna for the car is IN the rear windshield as well. So it makes sense that this *could* happen, but *should* it? And if it shouldn't, are they going have to tear my car apart over this, cause it isn't a huge bother, but if it is fixable I'd do it, but not if it means taking apart my 3 week old vehicle. - Vik |
11-26-2008, 01:08 PM | #2 |
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11-26-2008, 01:27 PM | #3 |
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it's normal imo, every bmw I've owned did it, except my 2002 & e30's, but those had a real radio antenna
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11-26-2008, 01:34 PM | #5 |
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yea I would agree that it is not normal. My M3 never did that and the attenna is integrated in the rear window. I don't think my 135i does that, but I don't listen to the radio that much. Will have to test it when i get home from vaca.
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11-26-2008, 01:41 PM | #6 |
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try it with AM, not FM, I don't listen to FM that may be the difference
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You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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11-26-2008, 01:46 PM | #7 |
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Not normal. Never experienced that in past Bimmers. I DID frequently loose my AM frequency in my E46, didn't notice it was connected with defrost, though most of it was due to the damn metallic tint on rear.
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11-26-2008, 05:01 PM | #8 |
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the defroster messes up the radio because they are both built into the rear window
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You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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11-26-2008, 05:47 PM | #9 | |
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happened to me yesterday. No AM reception
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An engine from a Z06 Corvette. A differential from a Vespa. Damn Quote:
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12-09-2008, 01:39 PM | #12 |
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anyone else have trouble with AM + defroster ?
I turn defrost on, I might as well turn the radio off, all I hear is static of course all my bmw's with antenna in rear window do this, not just the 135i I've not tried a stronger station to see if it's related to the signal strength and it does not affect FM for me
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You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
Driving e82, e72, e85, R53 Gone but not forgotten.. 1974 2002, many various 3s. |
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12-10-2008, 02:31 PM | #13 |
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I tried my UK spec E82 123D. No problems on FM or AM ( including weak AM stations) with rear demist on, with ice covering antenna wires and clear of ice. Interior surface was clear of droplets though. I'm not sure if condensation may have an effect?
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12-12-2008, 10:03 PM | #14 |
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Hopefully, this is not a serious issue.
It happened to me tonight...a little foggy on the back window, hit the rear defroster, and noticed the radio wasn't responsive at all.
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12-18-2008, 04:05 PM | #17 |
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12-18-2008, 04:09 PM | #18 |
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Not another small issue! Damn!
I will check mine tomorrow morning. And I thought the German design was about the details! EspressoBoy |
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12-18-2008, 10:37 PM | #19 |
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Out of interest, has anyone experienced this with FM? I thought the FM antenna was in the Shark Fin, so I assume it doesn't.
And another thing for further consideration, I wonder if it affects certain channels rather than others. It seems to me this is the Antenna generating a frequency that interferes with the radio, so maybe it's limited to some frequency ranges. And BTW I've tried this a few times, and not experienced any problem. It may be to do with how the wires are run inside the car??
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12-20-2008, 12:31 AM | #20 | |
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Quote:
I don't listen to AM.
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