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E85 / E86 Z4 (2003-2008)
E85 Z4 convertible and E86 Z4 coupe talk with our BMW gurus here.

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  #1  
Old 08-27-2012, 05:44 PM
Uber-Fritz Uber-Fritz is offline
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Location: Victoria BC
 
Join Date: Aug 2012
Posts: 21
Mein Auto: 2006 Z4 3.0i
Xenon light glitch

Hello

I am new to BMW ownership and now have a 2006 Z4 3.0i. I am having some odd behavior from the xenon headlights. Sometimes one comes on, sometimes both, sometimes the other. When I have only one light, the bulb warning is on. I sometimes hear a clicking sound from the area of the fuse box.

My first step is going to be to change the fuse but if anyone has run into this before I would be very grateful to hear about any solutions.

Thanks in advance.
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  #2  
Old 08-27-2012, 05:55 PM
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SD Z4MR SD Z4MR is offline
(formerly SD 335is)
Location: San Diego, CA
 
Join Date: Jan 2011
Posts: 4,227
Mein Auto: '06 Z4 MR | '11 335is E92
Since buying my 2006 Z4 M Roadster about 5 weeks ago I've had the bulb warning twice. The first time I wasn't able to check out what the problem was but when I came back to the car and restarted it the bulb warning was gone.

Second time my wife and I were out one night and the bulb warning came on. She got out and walked around the car and determined that the right front headlamp wasn't on. When we got back into the car and restarted it, the headlamp was working fine and the bulb warning was gone. Since it hasn't happened frequently I haven't bothered troubleshooting this any further.
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  #3  
Old 08-27-2012, 07:28 PM
tonywintn tonywintn is offline
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Location: Tennessee
 
Join Date: Jun 2009
Posts: 187
Mein Auto: 2005 BMW X5 & 2007 Z4 si
I had the same problem. It was a bad bulb. $300 at the dealer to replace it with a new bulb. Well, at least it is warrantied for two years.
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  #4  
Old 08-27-2012, 08:18 PM
Uber-Fritz Uber-Fritz is offline
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Location: Victoria BC
 
Join Date: Aug 2012
Posts: 21
Mein Auto: 2006 Z4 3.0i
Thanks very much. Was your alternating side to side like mine? I have first one then the other out.
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  #5  
Old 08-28-2012, 01:48 AM
Droptop85 Droptop85 is offline
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Location: Fresno
 
Join Date: Oct 2011
Posts: 351
Mein Auto: 03 Z4 3.0i
It's your ballast. I've replaced two so far. Im running a hid kit from ddm tuning. I bough a couple extra bulbs and ballasts for back up. When ordering from ddm you also need a code eliminator to get rid of the light warning on the cluster. Hid's can be a pain
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  #6  
Old 08-28-2012, 01:50 AM
Droptop85 Droptop85 is offline
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Location: Fresno
 
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Mein Auto: 03 Z4 3.0i
They have hid kits for 35 bucks. Plus shipping. Plus another 15 bucks for the eliminators
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  #7  
Old 08-28-2012, 04:02 AM
tonywintn tonywintn is offline
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Location: Tennessee
 
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Posts: 187
Mein Auto: 2005 BMW X5 & 2007 Z4 si
Mine was always the left side. If I flashed the lights or turned them back on a minute or two after turning off the left bulb would not start.
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  #8  
Old 08-28-2012, 10:44 AM
Uber-Fritz Uber-Fritz is offline
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Location: Victoria BC
 
Join Date: Aug 2012
Posts: 21
Mein Auto: 2006 Z4 3.0i
Thanks everyone. I am still not getting my problem. Right now both sides are working and the trouble light has gone out on its own without any reset (the exterior lamp/bulb one). Can it still be the bulbs if they work sometimes? Can it be the ballast when it is first one side out then the other, or does that just mean they are both wonky?

I hate to start replacing parts before I have a better idea what I am dealing with.

Thanks again.
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  #9  
Old 09-17-2012, 12:53 PM
Uber-Fritz Uber-Fritz is offline
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Location: Victoria BC
 
Join Date: Aug 2012
Posts: 21
Mein Auto: 2006 Z4 3.0i
Solution

And the answer was....... both bulbs were defective. Replaced gratis by the dealer. Thanks to everyone who responded.
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  #10  
Old 09-18-2012, 07:53 AM
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imz4n imz4n is offline
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Location: OC, CA.
 
Join Date: Oct 2005
Posts: 671
Mein Auto: 06 3.0 si Z4R
I had the same issue with 2006. I found that by turning the lights off and then pack on via the switch the lights would come on. I got dome input from the group I run with and was told to do a power reset. Remove the negative terminal from the battery for 20 min. and then reconnect it. Be ready to turn your alarm off if you have one and you will need to reset your radio stations. I do not know why, but, I have not had the issue since and it has bee 2 years. My $0.02 worth. Try it before you spend cash.
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