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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 11-08-2008, 10:07 AM
540i2003 540i2003 is offline
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Check lowbeam lights problem

I have a 2003 540 with Xenon low beams. Intermittently (2-4 times a month) I get the following message when I start the car "CHECK LOWBEAM LIGHTS." I step out of the car and sure enough the driver side Xenon is out. If I turn the car off and then back on again the light comes on and everything is fine. My local dealer suggested changing the bulb which we did. It looked to him like it was close to failure but that has not solved the problem. I did get to spend about $250 on the bulb though which was nice.

Has anyone else experienced this and / or does anyone have any suggestions for what might be happening? It's not the bulb ;-)
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  #2  
Old 11-08-2008, 11:02 AM
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chewyz_me chewyz_me is offline
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try disconnecting the headlights and cleaning the connectors and replacing the fuse.
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  #3  
Old 11-08-2008, 01:19 PM
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Check the wiring for the Xenon. ensure all connections are solid and good. try to move the wires around and see if you can make the light go off. That way you can find the problem, if it is a connection issue.
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  #4  
Old 11-08-2008, 01:28 PM
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sc 540i sc 540i is offline
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If none of the above solve the problem it could be a early sign that your LCM ( light control module) is on its way out, but I doubt that, i've had the same symptoms as you before and they unexplicably went away.
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  #5  
Old 11-08-2008, 02:36 PM
540i2003 540i2003 is offline
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Thanks. Ill try these. Makes sense. I've been a little reluctant to mess with the wiring given al the high voltage warning labels but I think I have a pair of insulated gloves I can use. SC540i, you said the problem just went away. How long did it linger?
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  #6  
Old 11-08-2008, 02:49 PM
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sc 540i sc 540i is offline
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It lingered for approximately 2 months, ocassionally the hazard lights would flash on their own too, but that's all gone away. It's most likely a loose connection though, let us know what happens.
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  #7  
Old 11-10-2008, 03:35 AM
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Mine does the same so please keep me in the loop.
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  #8  
Old 11-10-2008, 08:04 AM
mattmartindrift mattmartindrift is offline
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Quote:
Originally Posted by 540i2003 View Post
I have a 2003 540 with Xenon low beams. Intermittently (2-4 I did get to spend about $250 on the bulb though which was nice.
ouch, that bulb shouldn't be that much!

sylvania has an OEM reference and they should only run $30-50 a piece.
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  #9  
Old 11-10-2008, 09:25 AM
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dannyc9997 dannyc9997 is offline
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you paid how much for the bulb?? Did you add that 0 by accident?
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  #10  
Old 11-10-2008, 07:31 PM
540i2003 540i2003 is offline
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Xenon bulbs (Installed) are a lot at the dealership. I'll get a credit for some of it since it wasn't the issue.

I purchased an electronic contacts cleaner and sprayed the connectors at the LCM. They were dirty. I think they got soaked last year when the radiator / expansion tank failed (as expected) at about 50K. We'll see if that works.
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  #11  
Old 11-15-2008, 06:25 PM
540i2003 540i2003 is offline
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Well it does not appear to be the contacts at least not after cleaning them. They still may be bad. I may need change the physical connector. If it's not tat I think I am looking at the LCM.
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  #12  
Old 11-16-2008, 01:49 PM
nicky l nicky l is offline
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my car had this problem. thought it was the bulb to but turned out it was the controller. cost me 200 for a new one!! thats about 360 dollars i think!!
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  #13  
Old 10-27-2011, 10:55 AM
jcgabe2007 jcgabe2007 is offline
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Low Beam lights on -- X5 2006

Just purchased a 2006 X5 and I start the vehicle and "check low beam lights on" pops up...any suggestions/advice would be appreciated. Thank you!
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  #14  
Old 10-27-2011, 11:13 AM
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BentValve BentValve is offline
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Your HID ballast. Mine does it too. You dont have to restart the car, just turn the lights off and back on. You may have to do it a couple of times for the ballast to fire.
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  #15  
Old 09-14-2012, 05:23 AM
Randy Seman Randy Seman is offline
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Whatever became the result of this? I am having the same issue with my 540i Sport Wagon (2003). Thanks.
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