Well I found a artical on http://www.bmwe30.net/cgi-bin/datacg...178&Section=02, states that you jumper on the fog head light relay #30 and #87 to get the fog's to run without having your headlights on, well jumpering those leads dosnt do anything but turn the headlights on all the time, Pre 88 ....
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Fog Light wiring Modification's
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to do the pin 30 to 87 you have to have an 89 with ellipsoids.. i just did this on mine and it works. its kinda cool to be sittin in a parking lot at night with just your fogs on, or if you are out with some friends and hangin out somewhere you can just put the fogs on. plus, for me driving with my headlights on makes my alternator squeal, so during the day, i just run the fogs and it stays quiet.
Plus, Fog is a bitch, and safety first, right?
Kyle1988 M3, 97 840, 99 XJ
DILLIGAF
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Originally posted by e304lyfeOriginally posted by nandoI'm just curious, what exactly is the point of having your foglights turn on without your headlights?
sorry I just can't see getting on the freeway at 70mph with only foglights on...
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I have a pair of Hella 500's on my car they are very bright, now on to the question at hand,
With:
Ignition Switch Off
Fog Switch off
Head light Off
@ relay on box # 30 12v #85 3.5 #87 To Fog Light's #86 0v
With
Ignition Switch ON
Fog Switch ON
Head light ON
@ relay #30 12v #85 12v #87 To Fog light's #86 .035v
@ the Switch
Ignition Switch ON
Fog Switch off
The Yellow/Green Wire coming off the Headlight switch has 12v and the Gray wire has 3.9v
@ Switch
Ignition Switch On
Fog Switch On
The Yellow/Green Wire is common with ground or Ov and the gray has 12v
Here is what is going on in the circuit
When you switch the headlight switch on it sends 12v to #85 on the realy and the fog switch on the dash works as a path to ground to energize the relay,, I am used to it being the other way around #85 being the ground and the switch #86 providing it with 12v, to energize the coil to spring the realy shut connecting #87 and #30 to power the light's I am going to pull the fuse block this afternoon and mod # 85 to be 12v on Ignition on and take off the yellow/geen from the fog light switch and connect it to ground, this will allow me to run fog's at anytime, regardless of headlight switch position, Ill let you know if it work's,
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Originally posted by nandoOriginally posted by e304lyfeOriginally posted by nandoI'm just curious, what exactly is the point of having your foglights turn on without your headlights?
sorry I just can't see getting on the freeway at 70mph with only foglights on...
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Well I got ahold of some real wiring diagrams, the one's i had before in the bently blow chunks,
What is happing with the Fog light relay
#30 - Ignition on 12+
#85 - There is a wire coming from the low beam headlight relay #87 that goes 12+ with switch on
#87 - to fog's
#86 - to switch n to ground.
# 85 must have 12v and #86 must have the ground (switch on) so the relay closes and the lights come on,
To allow the Fog lights to run independet of the headlights, unbolt the fuse block and take the wire coming from #85 (on the fog light relay) and connect it to a parking light 12+ or a Ignition 12+ dependent on how you whant it to work, allso you will need to take the green/blue on the fog light switch and connect it to ground. Hope this clears things up,
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anyone know how to make all the lights (parking lights headlights foglights) shut off with the ignition?Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
Originally posted by TimKninjaIm more afraid of this thread turning into one of those classic R3v moments, where Pizza gets delivered.
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There have been numerous write-ups, as well as threads about this... they can all be dug up under the search button.
To provide at least a little info, I remember jumping two pins on the foglight relay in my '91 318is... I forget which ones though.
"See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."
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