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#1
04-25-2013, 05:23 PM
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Head lights doesn't turn on in Auto-mode in dark
I have this weird thing with my X5 2005 model. The Head lights doesn't turn on in Auto-mode in dark, So i have to do a manual switch when i need it and turn it off. One thing i noticed is, if i keep in auto and drive in dark.. the head lights at times turn on after 10-15 mins. How do i fix this.. Any sensors that are bad ?? where is the auto dark detection sensors.. so i can check and fix them ? Please help. Thanks Steve 
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#2
04-25-2013, 05:52 PM
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sensor is in the mirror assenmbly, facing outside - big, black blob... is it clean?
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#3
04-25-2013, 06:14 PM
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Ditto TX5...the adaptive headlight sensor is incorporated into the rain sensor which is tucked behind the removable covers around the base of the interior rear view mirror.
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#5
04-25-2013, 09:29 PM
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do you also have rain sensor? if you do, they are built-in together, the rain and the light sensors... check the fuse 41 in the glove compartment...
on the other hand, yo said it comes on in 10-15 minutes after being in dark... so, i would say, it is working, but needs calibration...
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#6
04-25-2013, 09:52 PM
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Calibration can be done at the dealer for a nominal fee.. Or at an independent Indy
Provided they have the testing gear.
__________________
"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.” Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance……. 
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#7
04-25-2013, 11:42 PM
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It can also be done with inpa.
Strange behavior. What's happens with the auto wipers?
__________________
For Sale Thread: http://www.xoutpost.com/classifieds/...ia-bridge.html 2004 X5 3.0i - Sold 1998 328i Convertible (e36) -sold 2004 325xi (e46)- sold Any questions?: DICE mediabridge|gauge rings|LED Angel Eyes|front door carrier|GT1/DIS/INPA/NCS|bluetooth retrofit|SIRIUS Retrofit|fuel filter|Dorman DISA|Roof Rack Delete|Sunroof drains|AC drains|rear sway bar swap|o2 sensors|VCG|Osram Night Breakers
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#8
04-26-2013, 03:50 AM
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The lights used to work correctly.. i noticed this strange behavior since a couple of months.
Yes i think i do have rain sensors, though i never tested auto wipers since i bought my car. is inpa a calibration tool for bmw ?? I am still learning a lot from this forum. I had bought this car about 2 yrs ago.. and quite a few major problems i had and just with the help from this forum i was able to DIY all of these issue. hopefully i will get this one too.
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#9
04-26-2013, 04:03 AM
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Perhaps calibration isn't an option..going back in time it appears
That there's only one option when the sensor doesn't work properly. http://www.xoutpost.com/bmw-sav-foru...g-10-x35d.html
__________________
"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.” Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….
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#10
04-26-2013, 08:36 AM
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Quote:
yeah, INPA is a diagnostic tool that BMW corporate uses. Its bootlegged to the public, but very easily obtained. its a powerful tool, so read up on it. Bimmerforums has a great section on it. the *RAIN*-light sensor is one piece. it uses the same sensor two ways. usually it fails together. the good news is that if your sensor fails complete, or blows a fuse, the car defaults to headlights always on for auto mode, and the wipers run all the time if in auto wiper mode. the way to test that is to move the wiper stalk 1 detent (one notch). If it wipes once (in the dry) and then stops, the module is probably still working. Another test, turn the car on, turn the lights to off, then to auto in the dark. Or, in the dark, when they are not on like they should be, hit the fog light button. When the car is in Auto mode, that causes the lights to come on. If they come right on, then we can probably eliminate the LCM (light module). If I recall correctly, there are two adjustment that the light sensor takes. one is a calibration and the other is a sensitivity. I will caveat that the RLS is weird. In the winter, my lights will go on in the middle of the day, even if its bright. Among things its looking at the angle of the light. Sometimes it goes on in my driveway in the morning which is shaded, but then i hit my street and its bright sun, and they stay on for like 10 minutes then go off. Petulant is a word I would use. welcome to BMW!
__________________
For Sale Thread: http://www.xoutpost.com/classifieds/...ia-bridge.html 2004 X5 3.0i - Sold 1998 328i Convertible (e36) -sold 2004 325xi (e46)- sold Any questions?: DICE mediabridge|gauge rings|LED Angel Eyes|front door carrier|GT1/DIS/INPA/NCS|bluetooth retrofit|SIRIUS Retrofit|fuel filter|Dorman DISA|Roof Rack Delete|Sunroof drains|AC drains|rear sway bar swap|o2 sensors|VCG|Osram Night Breakers
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