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      03-29-2013, 07:29 PM   #1
alfredoporro
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Do LED reverse bulbs give bulb out warning?

Hello everyone,

I used to have these LED reverse lights in my E46s and I never had bulb out warnings. I kept the LED lights from my E46 and I would like to use them in my Z4. Do Z4s get bulb out warning from LEDs reverse lights? If any of you have experiences, let me know please.

Thank you
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      03-29-2013, 08:15 PM   #2
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I'm not going to be of much help, but why don't you just try it and find out... you've already got the LED bulbs. Worse case, you just put the original bulbs back in.
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      03-30-2013, 10:28 AM   #3
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I think it will give a warning, if they do, you could code them to not check.
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      03-31-2013, 06:11 PM   #4
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No. had my 48 led reverse bulbs for a year. excellent for lighting up in the dark alley when reversing.
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      03-31-2013, 07:25 PM   #5
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Quote:
Originally Posted by ZeD4Mr View Post
No. had my 48 led reverse bulbs for a year. excellent for lighting up in the dark alley when reversing.
mind sharing the link to the product. I have a tough time backing out of my driveway at nights since it is pretty dark and I find the reverse lights to be slightly brighter than a match stick!
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      04-01-2013, 11:42 AM   #6
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I found it what I wrote on the mod sheet.

921 68 SMD LED Oct 2010.

Do a search on eBay. Any of those will work.

So I guess it's more than a year ago.
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      04-01-2013, 04:19 PM   #7
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I just started using 30w LED Creed back-up bulbs with no warning. Outstanding brightness throwing 20 feet of illumination!
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      04-01-2013, 04:46 PM   #8
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Quote:
Originally Posted by roadster-s View Post
I just started using 30w LED Creed back-up bulbs with no warning. Outstanding brightness throwing 20 feet of illumination!
Can you tell us where you got them?
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      04-02-2013, 03:40 AM   #9
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I ended up going with these and they work great and are SUPER Bright with no errors!

http://www.diamondlightingtechnology.com/194194575.html

Diamond Lighting Technology FTW!!

Last edited by R0ME0; 04-02-2013 at 03:46 AM.
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      04-02-2013, 11:57 AM   #10
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Thank you fot the replies!

I bought mine in:

http://www.khoalty.com/bmw-e46-led-reverse-light.html
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      04-02-2013, 12:23 PM   #11
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What wait year is your z? My e86 doesn't appear to use the 1156 style bulb from the e46.
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      04-02-2013, 04:29 PM   #12
alfredoporro
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**UPDATE

The bulbs didn't work in my car . They fit but they didn't turn on. I'll have to look for other kind of LED bulbs

Last edited by alfredoporro; 04-02-2013 at 04:35 PM.
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      04-02-2013, 04:42 PM   #13
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How very odd. Sounds like maybe a polarity issue, but I would think the center would be positive.
Do you have a meter that you can use to check the polarity of the voltage on your socket?
Did you try the bulbs with a 9V battery so see which end is positive?
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      04-03-2013, 07:12 PM   #14
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Quote:
Originally Posted by chickdr View Post
Can you tell us where you got them?
Here:

http://www.ebay.com/itm/221179974954...84.m1439.l2649
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      04-03-2013, 07:55 PM   #15
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Quote:
Originally Posted by roadster-s View Post

What year is your car? I just checked my reverse lights and as others have said here- my reverse bulb is not 1156 size(that is my brake light). The reverse bulb is size 921 on 2006+ cars. Maybe the 03-05's use a different bulb?

Last edited by chickdr; 04-04-2013 at 10:52 AM.
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      04-04-2013, 10:45 AM   #16
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yeah my search comes up 921 also, looking for the brightest 921 led bulb i found some 6W
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      04-04-2013, 12:22 PM   #17
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I have found the reverse bulbs to be ridiculously dim...

So for 06+ I need a 921 bulb, does anyone have any suggestions? That CREE 1156 one looked like it would be very bright.
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      04-04-2013, 12:42 PM   #18
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What is brighter, one of those 68 led array lights, or the single high output cree led's? I'm not sure of the angle or the reflectiveness of the e85 reverse light housing.
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      04-04-2013, 01:53 PM   #19
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seems to be the cheapest here:

http://www.ebay.com/itm/2x-1156-BA15...80946042266%26
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      04-04-2013, 02:32 PM   #20
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I think polarity is the issue. I have tried several different sources for a correct backup LED, but polarity has been incorrect on all of them. I have verified that the lamp works by hooking up to an external (correct polarity) power source, and the lamps work just fine. But in situ... no joy....I have not yet been able to find one of the correct polarity, and changing the wiring to the socket seems too risky?
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      04-04-2013, 05:41 PM   #21
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But what is brighter in our cars? Multi array? or one cree?
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      04-04-2013, 06:14 PM   #22
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Quote:
Originally Posted by chickdr View Post
What year is your car? I just checked my reverse lights and as others have said here- my reverse bulb is not 1156 size(that is my brake light). The reverse bulb is size 921 on 2006+ cars. Maybe the 03-05's use a different bulb?
2003 = 1156
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