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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

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 01-20-2014, 03:12 PM
Bennt771 Bennt771 is offline
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Mein Auto: 2000 540i,89 Por 930,Vett
Question led center brake light?

Has anyone had success with this? error free success? I've been looking on ebay but i cant see where it mentions error free for our e39's.
Anyone had any success? Im trying to get away from the melting socket issue i have.

thank-you in advance.
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  #2  
Old 01-20-2014, 03:54 PM
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dtadrian dtadrian is offline
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I have installed an led light on my touring. In order to have error free you must have a resistor or some sort or.... People may or may not agree with what I say. You can have a regular bulb tied into the harness you connect to and splice off for led. That way the LCM sees a bulb and doesn't give you an error. If I'm not mistaken, the LCM checks the resistance in the bulb to see if its open or closed.


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  #3  
Old 01-20-2014, 04:02 PM
Bennt771 Bennt771 is offline
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I've purchased led lights for the interior of my car and they were advertised as plug and play/no error lights. And they were.
Just wondering if you can get the same for 7506 bulbs.
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  #4  
Old 01-20-2014, 04:05 PM
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dtadrian dtadrian is offline
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I just checked on eBay for those bulbs. They do exist for canbus error free. They are pretty expensive though.


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  #5  
Old 01-20-2014, 04:21 PM
Bennt771 Bennt771 is offline
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Meh...... I will try this one to see if any good.... not feeling to positive about it.

http://www.ebay.com/itm/261135343052...84.m1439.l2649
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  #6  
Old 01-20-2014, 05:55 PM
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dtadrian dtadrian is offline
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Oh. Those are cheap.. I didn't see those. The ones I saw were like 20 bux.. Try them.


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  #7  
Old 01-21-2014, 10:19 AM
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bluebee bluebee is offline
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This is all I know about the center brake lamp:
- What to check if your cluster indicates a rear brake lamp out (1) & how to remove a melted center brake light (1)

The problem you'll have with LED, is the cluster ...
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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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  #8  
Old 01-21-2014, 10:35 AM
Bennt771 Bennt771 is offline
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I ordered one just to see..... Hopefully it is error free. i will post results when i get it.
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  #9  
Old 01-21-2014, 07:37 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by Bennt771 View Post
I ordered one just to see..... Hopefully it is error free. i will post results when i get it.
Thanks. Let us know how it works out because I would "guess" (having no experience myself with it) that the cluster needs to see a certain electrical value (resistance?) so, that's why I mentioned it.

Let us know how it works out!
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See also: E39 Bestlinks & How to easily find what you need
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  #10  
Old 01-30-2014, 09:50 PM
speedchase speedchase is offline
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I ordered one from Ebay as wel; the seller is out of town until early Feb and my delivery date is sometime at the end of Feb or early March.
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  #11  
Old 02-07-2014, 08:04 AM
Bennt771 Bennt771 is offline
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Well, got it, installed it, threw it out. It's full of error's.

From seller. "It may be due to the resistance( inside the bulb) is not exactly the same as your car needs.

This CANBUS error free bulb has small room to add more resistor in. Even the electrical engineer doesn't recomend to add too high resistance which will cause high heats and then burn the bulb.

We sold many of this bulb to our clients. It is suitable/compatible with most of car model. But we didn't test each car model as there are too many cars in the market. We think this bulb is NOT compatible with your car."
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  #12  
Old 02-07-2014, 10:32 AM
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dtadrian dtadrian is offline
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BMW's are too damn sensitive for everything.
Look for a low output 12v bulb that doesn't generate a lot of heat and tie in led with it. It will take away the errors


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  #13  
Old 01-21-2015, 05:10 PM
speedchase speedchase is offline
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Did not work for me either and I am now seeing a lot of similar bulbs on Amazon now.
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Repairs so far - Steering fluid pump ($1k - Indy), CCV replacement ($1k hosed to another Indy) & Axle replacement ($850 to another indy).. 3 indys to date and now I am diving all in as a DIY'er
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  #14  
Old 01-21-2015, 05:19 PM
edjack edjack is offline
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E39 Light Control Module Primer

The LKM controls all OUTSIDE lights; it also tests them for proper resistance. If a bulb is out, it will throw the error. The LKM can also flag a bulb near end of life.

The General Module controls interior bulbs; AFAIK, it does not test bulbs.

The LKM is sensitive to brass-based bulbs, so bulbs with silver-colored bases must be used.

I don't remember having seen brass bulbs in auto parts stores for many years.
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Last edited by edjack; 01-21-2015 at 05:21 PM.
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  #15  
Old 01-21-2015, 06:52 PM
spoddye39 spoddye39 is offline
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Just to rub salt, if the LED had suitable internal resistors to eliminate the errors, then the total heat load inside the brake lamp housing would be the same -> you wouldn't help the melting problem. I suggest if you're worried about the brake lamp melting, try to find a lower wattage lamp. I've seen these lamps in different wattages eg 21, up to 25W I think. Suggest you should make sure you have a 21W lamp in there and maybe see if you can find a 15 or 18W unit - if available these might be high enough to pass the cars test while having a reduced heat output.

My 2 cents anyway.
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