Rear defrost doesn't work along the top

robertm · 11-30-2011, 08:07 AM

I searched here and in the general 1 series forum but found nothing. The rear window has defrost wires running horizontally all the way up the window. There is a break about 5 inches from the top then 3 more rows of wires at the top (or something like that). On my car these top 3 rows above the break don't work. Anyone else experience this?

MusclezMarinara · 11-30-2011, 08:46 AM

Quote:

Originally Posted by robertm

I searched here and in the general 1 series forum but found nothing. The rear window has defrost wires running horizontally all the way up the window. There is a break about 5 inches from the top then 3 more rows of wires at the top (or something like that). On my car these top 3 rows above the break don't work. Anyone else experience this?

Do you have tinted windows?

MDORPHN · 11-30-2011, 08:52 AM

Quote:

Originally Posted by robertm

I searched here and in the general 1 series forum but found nothing. The rear window has defrost wires running horizontally all the way up the window. There is a break about 5 inches from the top then 3 more rows of wires at the top (or something like that). On my car these top 3 rows above the break don't work. Anyone else experience this?

Hadn't noticed, but I'll pay attention next time I use the rear defroster.

Perhaps the top wires are the radio antenna??

Neil

robertm · 11-30-2011, 09:26 AM

Quote:

Originally Posted by MDORPHN

Hadn't noticed, but I'll pay attention next time I use the rear defroster.

Perhaps the top wires are the radio antenna??

Neil

Hmm could be I guess. Didn't look that close at them this morning. What's that shark fin thing on the back for though if not the radio?

Also, no tint on my car.

MDORPHN · 11-30-2011, 10:13 AM

Quote:

Originally Posted by robertm

Hmm could be I guess. Didn't look that close at them this morning. What's that shark fin thing on the back for though if not the radio?

Also, no tint on my car.

I figured it's for satellite radio, but maybe it does both.

Guess I could look at parts diagrams and figure it out.

EDIT: Just did a little research. The shark fin is for satellite. The radio antenna are in the rear windshield.

Neil

oldBMWguy · 11-30-2011, 10:19 AM

Mine works the same way-- no defrosting at the top-- I think it must be radio related, but not sure.

Joe B

Va Bch

DriveHard · 11-30-2011, 10:49 AM

its the radio antenna.. 100%.. maybe 3 inches or so from the top...

it is what it is.. no worries.

HondaGoneRogue · 11-30-2011, 11:44 AM

I've been in Vegas so long, I'm like "What rear defroster?" Hahaha!

robertm · 11-30-2011, 12:48 PM

Well mystery solved. A bit strange but ok.

I'm just happy I didn't make and appointment with the dealer and go through that rigmorale only to find out its not a problem!

Thanks guys.

1SerieStud · 11-30-2011, 02:11 PM

The shark fin is for satellite radio and i believe also phone integration - which is used to boost your signal when you cradle the phone in the car. Radio antenna is on the glass along the top.

v1k0d3n · 11-30-2011, 02:48 PM

Quote:

Originally Posted by HondaGoneRogue

I've been in Vegas so long, I'm like "What rear defroster?" Hahaha!

Word. I'm thinking that even in Charlotte (with a garage). Helps that I work from home most of the time as well.

11-30-2011, 08:07 AM	#1
robertm Major 450 Rep 1,358 Posts Drives: 2020 M2 Comp Join Date: Oct 2007 Location: dfw iTrader: (0)	Rear defrost doesn't work along the top I searched here and in the general 1 series forum but found nothing. The rear window has defrost wires running horizontally all the way up the window. There is a break about 5 inches from the top then 3 more rows of wires at the top (or something like that). On my car these top 3 rows above the break don't work. Anyone else experience this?
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11-30-2011, 10:19 AM	#6
oldBMWguy Private 5 Rep 83 Posts Drives: 2011 AW 1M [Finally !] Join Date: Jul 2011 Location: Virginia Beach Va. USA iTrader: (0)	Mine works the same way-- no defrosting at the top-- I think it must be radio related, but not sure. Joe B Va Bch
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11-30-2011, 10:49 AM	#7
DriveHard Colonel 115 Rep 1,998 Posts Drives: X1 and R58 JCW Join Date: Aug 2010 Location: Long Island iTrader: (0)	its the radio antenna.. 100%.. maybe 3 inches or so from the top... it is what it is.. no worries. __________________ X1, R58 JCW, M2 in my future if planets align
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11-30-2011, 11:44 AM	#8
HondaGoneRogue They like my Swag... 433 Rep 3,762 Posts Drives: 15 GSM 435i GC Join Date: Aug 2008 Location: South Dakota iTrader: (4) Garage List 2015 435i Gran Coupe [0.00]	I've been in Vegas so long, I'm like "What rear defroster?" Hahaha! __________________ 2015 435i Gran Coupe - Current 2008 AW 135i - Sold
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11-30-2011, 12:48 PM	#9
robertm Major 450 Rep 1,358 Posts Drives: 2020 M2 Comp Join Date: Oct 2007 Location: dfw iTrader: (0)	Well mystery solved. A bit strange but ok. I'm just happy I didn't make and appointment with the dealer and go through that rigmorale only to find out its not a problem! Thanks guys.
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11-30-2011, 02:11 PM	#10
1SerieStud Brigadier General 183 Rep 3,939 Posts Drives: '11 VO 1M (498 of 740) Join Date: Jul 2010 Location: Jacksonville, FL iTrader: (11)	The shark fin is for satellite radio and i believe also phone integration - which is used to boost your signal when you cradle the phone in the car. Radio antenna is on the glass along the top.
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