To those with EUR fog light switch

Ctm309 · 01-23-2010, 09:10 PM

With the switch off the both the inner and outer brake lights (in the fender) work but with the rear fogs on only the outer brake lights come on, at least on my car.

Anybody have the same?

JCtx · 01-23-2010, 10:18 PM

The inner lights ARE the fogs man. They only light up in the US under hard braking, but only if you don't have them already on with the euro switch.

Ctm309 · 01-24-2010, 12:35 AM

Quote:

Originally Posted by elp_jc

The inner lights ARE the fogs man. They only light up in the US under hard braking, but only if you don't have them already on with the euro switch.

The fogs are in the trunk lid. The brake light lights are in the fender.
There are two brake light bulbs on each side in the fenders.
When the fog light switch is in the off position all four brake light bulbs
light up when the brake is applied. When the fog light switch is in the on position only the two outer brake light bulbs light when the brake is applied. I know the difference between the US and the Euro and how the brake force works.

Again this is in my case.

richj777 · 01-24-2010, 07:54 PM

Sorry to sort of thread jack, but I also have an 09 and have been looking for the fog light switch but have had no luck. Where did you get yours? When I do get it, then I can answer your question

JCtx · 01-24-2010, 08:32 PM

Quote:

Originally Posted by Ctm309

The fogs are in the trunk lid. The brake light lights are in the fender.
There are two brake light bulbs on each side in the fenders.
When the fog light switch is in the off position all four brake light bulbs
light up when the brake is applied. When the fog light switch is in the on position only the two outer brake light bulbs light when the brake is applied.

I see what you're saying now. I don't personally care, but if your car does that, probably all others do as well. I learned something new today

. By the way, if I ever use that switch it'd be to just momentarily make a tailgater back off. Take care.

Ctm309 · 01-25-2010, 04:45 AM

Quote:

Originally Posted by richj777

Sorry to sort of thread jack, but I also have an 09 and have been looking for the fog light switch but have had no luck. Where did you get yours? When I do get it, then I can answer your question

LeatherZ.com had some a while ago, that's where I got mine.

MysticBlue · 01-25-2010, 05:34 AM

Quote:

Originally Posted by richj777

Sorry to sort of thread jack, but I also have an 09 and have been looking for the fog light switch but have had no luck. Where did you get yours? When I do get it, then I can answer your question

I was looking around a few months ago and it seemed like those who had them didn't have them anymore, and BMW wasn't making them available to those who were selling them to the North American market.
I ended up spending $10 for some legos to modifiy the existing switch to make fog lights functional. Works perfect. I can't remember if the DIY came from this forum. I might be able to get a link later. Or do a search for legos.

han405 · 01-25-2010, 05:44 AM

http://www.e90post.com/forums/showth...highlight=lego

LEGO mod, here it is..

Ctm309 · 01-25-2010, 10:53 AM

MysticBlue, do your lights work the same as mine?

karussell · 01-25-2010, 01:18 PM

i just looked at this diy and took my oem switch apart. it has two white button plastic things in there even though its a us spec car? 2010 e90 October build.

richj777 · 03-09-2010, 02:25 PM

Quote:

Originally Posted by Ctm309

With the switch off the both the inner and outer brake lights (in the fender) work but with the rear fogs on only the outer brake lights come on, at least on my car.

Anybody have the same?

This is how mine works too.

Dieselino · 03-09-2010, 04:30 PM

I dont understand what is the point of the Eurofog switch? What does it do?

richj777 · 03-09-2010, 05:31 PM

Turns on the rear fog lights.

r53s65e90 · 03-09-2010, 07:34 PM

Quote:

Originally Posted by Dieselino

I dont understand what is the point of the Eurofog switch? What does it do?

Rear fog lights are required by law in most of Europe.

TTG · 03-09-2010, 08:27 PM

Quote:

Originally Posted by Dieselino

I dont understand what is the point of the Eurofog switch? What does it do?

And precisely for people like you, BMWNA does not offer them in the US. Most American's don't have a CLUE what they are..... :-)

TTG · 03-09-2010, 08:37 PM

Quote:

Originally Posted by Ctm309

The fogs are in the trunk lid. The brake light lights are in the fender.
There are two brake light bulbs on each side in the fenders.
When the fog light switch is in the off position all four brake light bulbs
light up when the brake is applied. When the fog light switch is in the on position only the two outer brake light bulbs light when the brake is applied. I know the difference between the US and the Euro and how the brake force works.

Again this is in my case.

What you are describing is 100% normal and that is how they should function.

Rear Fogs OFF w/ No Brakes:
oo[oo ---- oo]oo

Rear Fogs On w/ No Brakes:
oo[OO ---- OO]oo

Rear Fogs On w/ Brakes:
OO[OO ---- OO]OO

The only way all four bulbs should light up (when rear fogs are off) is during hard braking. If your car is doing this on regular basis, take it in have the dealer look at it. It is probably thinking that you are hard braking all the time..... It might be a bad sensor.

Hope this helps..... Sorry about the poor graphics above

isugoo · 03-09-2010, 09:02 PM

Quote:

Originally Posted by TTG

What you are describing is 100% normal and that is how they should function.

Rear Fogs OFF w/ No Brakes:
oo[oo ---- oo]oo

Rear Fogs On w/ No Brakes:
oo[OO ---- OO]oo

Rear Fogs On w/ Brakes:
OO[OO ---- OO]OO

The only way all four bulbs should light up (when rear fogs are off) is during hard braking. If your car is doing this on regular basis, take it in have the dealer look at it. It is probably thinking that you are hard braking all the time..... It might be a bad sensor.

Hope this helps..... Sorry about the poor graphics above

Awesome graphic!
Very creative way to explain the fog lights!

JCtx · 03-09-2010, 09:52 PM

Quote:

Originally Posted by TTG

Hope this helps..... Sorry about the poor graphics above

I think what OP said was there're TWO brake bulbs on each fender tail, with the fog one being the third. So when there's no fogs, both outer bulbs on each tail light up. And when fogs are on, only ONE bulb per side lights up, rather than all 3.

I haven't checked my car, but the fender tails seem too narrow to house 2 bulbs each IMO, but I could be wrong. At any rate, whatever it is, all M3s are going to do that since they're already prewired. Good evening.

MysticBlue · 03-09-2010, 11:27 PM

I'm not really sure what the OP is describing, but TTG got it right. That is how it is supposed to work; that is how mine work.

Dieselino · 03-10-2010, 12:40 AM

Quote:

Originally Posted by TTG

And precisely for people like you, BMWNA does not offer them in the US. Most American's don't have a CLUE what they are..... :-)

Uhh I know what a rear fog is, the question was why the euro switch is needed. Also an FYI bmw doesnt offer them because they arent a legal requirement in north america.

MysticBlue · 03-10-2010, 01:08 AM

Quote:

Originally Posted by Dieselino

Uhh I know what a rear fog is, the question was why the euro switch is needed. Also an FYI bmw doesnt offer them because they arent a legal requirement in north america.

Everything needed for the fog light is in place. BMW went to the trouble of designating a North American switch, when it would have been easier to just leave them all the same, because North Americans are not familiar with rear fogs and would not use them correctly. Just like front fogs, stupid Americans would drive around with them on all the time.
The only difference between the switches is a small plastic tab that is removed from the NA switches which disables the fog light funtion. Put that plastic tab back in there and trim the plastic supports on the pushbutton and it works. The pushbutton face is also different... no symbol vs. a fog light symbol. There is a link previously in this thread if you want more details.

Dieselino · 03-10-2010, 08:36 AM

Quote:

Originally Posted by MysticBlue

Everything needed for the fog light is in place. BMW went to the trouble of designating a North American switch, when it would have been easier to just leave them all the same, because North Americans are not familiar with rear fogs and would not use them correctly. Just like front fogs, stupid Americans would drive around with them on all the time.
The only difference between the switches is a small plastic tab that is removed from the NA switches which disables the fog light funtion. Put that plastic tab back in there and trim the plastic supports on the pushbutton and it works. The pushbutton face is also different... no symbol vs. a fog light symbol. There is a link previously in this thread if you want more details.

Thank you!

01-23-2010, 09:10 PM	#1
Ctm309 First Lieutenant 15 Rep 361 Posts Drives: '09 M3 AW Carbon roof DCT '11 Join Date: Oct 2009 Location: Norwalk, Ct./Port Washington, N.Y. iTrader: (7)	To those with EUR fog light switch With the switch off the both the inner and outer brake lights (in the fender) work but with the rear fogs on only the outer brake lights come on, at least on my car. Anybody have the same?
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01-23-2010, 10:18 PM	#2
JCtx Major General 258 Rep 5,012 Posts Drives: No BMW yet Join Date: May 2008 Location: El Paso TX iTrader: (0)	The inner lights ARE the fogs man. They only light up in the US under hard braking, but only if you don't have them already on with the euro switch.
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01-24-2010, 07:54 PM	#4
richj777 Enlisted Member 3 Rep 40 Posts Drives: 2009 M3 Coupe Join Date: Aug 2009 Location: Denver iTrader: (0) Garage List 2009 E92 M3 [0.00]	Sorry to sort of thread jack, but I also have an 09 and have been looking for the fog light switch but have had no luck. Where did you get yours? When I do get it, then I can answer your question __________________ 2009 E92 JzB/FR/4MX:ZCW:ZPP:ZTP:752:655:6FL:415 3M 20%:3M clear mask:matte black front and side grilles:SilverVision rear turn signals:reflectors delete:Euro headlight switch, w/o front fog button:6000K LED Angel Eyes
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01-25-2010, 05:44 AM	#8
han405 Second Lieutenant 10 Rep 203 Posts Drives: E46 M3, E92 M3 Join Date: Sep 2009 Location: PA iTrader: (0)	http://www.e90post.com/forums/showth...highlight=lego LEGO mod, here it is..
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01-25-2010, 10:53 AM	#9
Ctm309 First Lieutenant 15 Rep 361 Posts Drives: '09 M3 AW Carbon roof DCT '11 Join Date: Oct 2009 Location: Norwalk, Ct./Port Washington, N.Y. iTrader: (7)	MysticBlue, do your lights work the same as mine?
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01-25-2010, 01:18 PM	#10
karussell Lieutenant Colonel 356 Rep 1,749 Posts Drives: 4 wheels Join Date: Sep 2009 Location: NorCal iTrader: (1)	i just looked at this diy and took my oem switch apart. it has two white button plastic things in there even though its a us spec car? 2010 e90 October build. Last edited by karussell; 01-25-2010 at 04:14 PM..
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03-09-2010, 04:30 PM	#12
Dieselino Captain 47 Rep 613 Posts Drives: 03 LSB M3 06 M coupe 08 M3 SG Join Date: Apr 2007 Location: Detroit iTrader: (2)	I dont understand what is the point of the Eurofog switch? What does it do?
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03-09-2010, 05:31 PM	#13
richj777 Enlisted Member 3 Rep 40 Posts Drives: 2009 M3 Coupe Join Date: Aug 2009 Location: Denver iTrader: (0) Garage List 2009 E92 M3 [0.00]	Turns on the rear fog lights. __________________ 2009 E92 JzB/FR/4MX:ZCW:ZPP:ZTP:752:655:6FL:415 3M 20%:3M clear mask:matte black front and side grilles:SilverVision rear turn signals:reflectors delete:Euro headlight switch, w/o front fog button:6000K LED Angel Eyes
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03-09-2010, 11:27 PM	#19
MysticBlue Lieutenant Colonel 369 Rep 1,887 Posts Drives: '20 M5C, '09 M3 DCT Coupe Join Date: Apr 2008 Location: Eastern Oregon... They call 'em rigs here iTrader: (0)	I'm not really sure what the OP is describing, but TTG got it right. That is how it is supposed to work; that is how mine work.
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