Rear defogger problem

mrmojorisin · 12-04-2007, 06:43 AM

I have a new 2008 335i cab and I noticed that the top 3 horizontal lines of the rear window defogger do not appear to work. When I turn on the defogger the window clears up to a point approximately 3 inches (or 3 lines) from the top.
Has anyone else seen this happen?

greatbm · 12-04-2007, 05:05 PM

That is normal, same with my 2007 cab, radio aerial uses top elements.

mrmojorisin · 12-05-2007, 08:39 AM

Thank you

codrinmirel · 12-10-2007, 06:12 AM

Quote:

Originally Posted by mrmojorisin

I have a new 2008 335i cab and I noticed that the top 3 horizontal lines of the rear window defogger do not appear to work. When I turn on the defogger the window clears up to a point approximately 3 inches (or 3 lines) from the top.
Has anyone else seen this happen?

I have the same problem but on a sedan.
I don't think it's normal.
I don't know what to do...

codrinmirel · 12-10-2007, 06:14 AM

Quote:

Originally Posted by greatbm

That is normal, same with my 2007 cab, radio aerial uses top elements.

I have a sedan with the same problem.
What means radio aerial uses top elements?
Is it the same thing on a sedan?!

mrmojorisin · 12-10-2007, 06:27 AM

The dealer told me that indeed it is normal and the top section is for the. antenna.

montreal_bimmer · 12-10-2007, 02:39 PM

Quote:

Originally Posted by greatbm

That is normal, same with my 2007 cab, radio aerial uses top elements.

+1 with this chump

jhilsinho · 12-10-2007, 05:07 PM

If that part is for the antenna, whats the shark fin for???

kiki · 12-11-2007, 02:53 PM

sat radio

Xiaofeng · 12-11-2007, 04:52 PM

The top few lines on your rear windshield is the antenna for your radio. These will not warm up like the defogger heating elements, so what you're experiencing is perfectly normal. Nothing to worry about.

The shark fin houses the antennas for the satellite radio and for the GPS navigation. Go here for details (or feel free to pop open the shark fin if you want a more hands on approach

).

VIZSLA · 12-11-2007, 08:11 PM

Quote:

Originally Posted by Xiaofeng

The top few lines on your rear windshield is the antenna for your radio. These will not warm up like the defogger heating elements, so what you're experiencing is perfectly normal. Nothing to worry about.

The shark fin houses the antennas for the satellite radio and for the GPS navigation. Go here for details (or feel free to pop open the shark fin if you want a more hands on approach

).

And its on cars without those options because?

oscartheclimber · 12-11-2007, 09:36 PM

Quote:

Originally Posted by mrmojorisin

The dealer told me that indeed it is normal and the top section is for the. antenna.

May be that it does. However dealers usually say that every problem is normal or to spec.

VIZSLA · 12-12-2007, 08:13 AM

Quote:

Originally Posted by oscartheclimber

May be that it does. However dealers usually say that every problem is normal or to spec.

I bet they love that answer when it comes from their cardiologist.

Xiaofeng · 12-12-2007, 11:47 AM

Quote:

Originally Posted by VIZSLA

And its on cars without those options because?

It's on the U.S. spec cars because apparently, all us Americans have some underlying wish to be a shark. In Europe, you can actually opt for the shark fin delete if you don't have navigation or satellite radio, but BMW in all their infinite wisdom decided this was not possible for the U.S.

KillDork · 12-12-2007, 12:41 PM

Quote:

Originally Posted by VIZSLA

And its on cars without those options because?

It's used for the mobile phone integration as well.

VIZSLA · 12-12-2007, 12:51 PM

Quote:

Originally Posted by KillDork

It's used for the mobile phone integration as well.

And for those without that either?
As far as I know it's standard fitment regardless of options. If this thread is right mine serves no use at all.

Taittinger · 12-12-2007, 01:30 PM

Quote:

Originally Posted by VIZSLA

And for those without that either?
As far as I know it's standard fitment regardless of options. If this thread is right mine serves no use at all.

It functions as a vertical stabilizer at higher speeds.

VIZSLA · 12-12-2007, 02:34 PM

Quote:

Originally Posted by Taittinger

It functions as a vertical stabilizer at higher speeds.

An application not seen since the Jaguar D Type!

ElRedOne · 12-12-2007, 03:18 PM

Quote:

Originally Posted by VIZSLA

And its on cars without those options because?

Economies of scale make it cheaper to install on every vehicle regardless of equipment. The cost of the shark fin and ancillary wiring is less than the logistical costs of yes/no.

VIZSLA · 12-12-2007, 03:38 PM

Quote:

Originally Posted by ElRedOne

Economies of scale make it cheaper to install on every vehicle regardless of equipment. The cost of the shark fin and ancillary wiring is less than the logistical costs of yes/no.

Blanks in the bumpers for sensors or in the dash for switches I can see but a piece like the fin seems just too big and costly for that.

n5160u · 12-12-2007, 11:47 PM

The number of cars ordered with BMW Assist in the USA is large enough to offset the cost of setting up a separate production run to build cars without the hole in the roof for those that do not need satellite/gps or cell phone integration. Remember that cars with BMW Assist have their own GPS and cell phone equipment.

karliejai · 12-13-2007, 12:36 AM

i wanan take my fin off since i dun use my satelite radio and i have no nav but i was told theres a hole on top if i take it off lol =P

12-04-2007, 06:43 AM	#1
mrmojorisin New Member 1 Rep 19 Posts Drives: 335i Cab Join Date: Nov 2007 Location: Toronto iTrader: (0)	Rear defogger problem - maybe I have a new 2008 335i cab and I noticed that the top 3 horizontal lines of the rear window defogger do not appear to work. When I turn on the defogger the window clears up to a point approximately 3 inches (or 3 lines) from the top. Has anyone else seen this happen?
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12-04-2007, 05:05 PM	#2
greatbm Major 148 Rep 1,060 Posts Drives: G15 840i Coupe Join Date: Feb 2007 Location: North East iTrader: (0)	That is normal, same with my 2007 cab, radio aerial uses top elements.
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12-05-2007, 08:39 AM	#3
mrmojorisin New Member 1 Rep 19 Posts Drives: 335i Cab Join Date: Nov 2007 Location: Toronto iTrader: (0)	Thank you
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12-10-2007, 06:27 AM	#6
mrmojorisin New Member 1 Rep 19 Posts Drives: 335i Cab Join Date: Nov 2007 Location: Toronto iTrader: (0)	The dealer told me that indeed it is normal and the top section is for the. antenna.
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12-10-2007, 05:07 PM	#8
jhilsinho Banned 28 Rep 276 Posts Drives: 335I 07 Join Date: Jun 2007 Location: Pothole capital of the world iTrader: (0)	If that part is for the antenna, whats the shark fin for???
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12-11-2007, 02:53 PM	#9
kiki Private 3 Rep 56 Posts Drives: none Join Date: Oct 2007 Location: nowhere iTrader: (0) Garage List 2008 E92 335i [0.00]	sat radio
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12-11-2007, 04:52 PM	#10
Xiaofeng Captain 35 Rep 712 Posts Drives: 2007.5 E90 335xi Montego/Lemon Join Date: Jul 2007 Location: Colorado iTrader: (1) Garage List 2007 E90 335xi [0.00] 1991 325iX [0.00]	The top few lines on your rear windshield is the antenna for your radio. These will not warm up like the defogger heating elements, so what you're experiencing is perfectly normal. Nothing to worry about. The shark fin houses the antennas for the satellite radio and for the GPS navigation. Go here for details (or feel free to pop open the shark fin if you want a more hands on approach ). __________________
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12-12-2007, 11:47 PM	#21
n5160u Private First Class 1 Rep 158 Posts Drives: E93 Join Date: May 2007 Location: NorCal iTrader: (0) Garage List 2007 E93 [0.00]	The number of cars ordered with BMW Assist in the USA is large enough to offset the cost of setting up a separate production run to build cars without the hole in the roof for those that do not need satellite/gps or cell phone integration. Remember that cars with BMW Assist have their own GPS and cell phone equipment. __________________ If It Says Pratt And Whitney On The Outside It Better Say Martin Baker On The Inside I saw a book titled "Sex for Dummies" and wondered why anyone would teach dumb people how to reproduce?
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12-13-2007, 12:36 AM	#22
karliejai Da Kid 121 Rep 4,576 Posts Drives: JetBlack e90 335i Join Date: Mar 2007 Location: USA iTrader: (4)	i wanan take my fin off since i dun use my satelite radio and i have no nav but i was told theres a hole on top if i take it off lol =P __________________ MODS: OEM Front Splitter \| ACS Roof Spoiler \| OEM Trunk Spoiler \| Matt Black Front Grill \| Black Shadowline Window Trim \| Painted Front Lower Rod \| Blacklines \| JDM Yellow Fogs \| Custom Silver CF Headlights with LUX 4.0 \| Eisenhaus Sports Exhaust
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