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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 06-04-2007, 01:28 PM
cn90 cn90 is offline
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Group buy for LCM Repair Part Infineon BTS426L1???

Group buy for "Infineon BTS426L1" to repair the LCM.

As we know a new LCM is some $300-400. A common problem is headlight ON even with key OFF. Virtually in all cases, it is the defective Chip made by Infineon. Read this repair DIY:

http://tech.bentleypublishers.com/se...%20A%20E39.pdf

Infineon BTS426L1. Technical data is here:
http://www.ortodoxism.ro/datasheets/...1_20030926.pdf


I have the opportunity to buy wholesale (such as qty= 100) to get good price of $7-8/each.
Note: There are 2 chips in the LCM (one for RH and one for LH high beams)

The question is: how many of you are interested in buying this chip to keep at home as the likelihood of LCM failure is very high? Better to have it at home than waiting for the LCM to fail, as online ordering will take some 60-90 days.

If there is enough interest in this Inifineon chip, then I will order some 100 (minimum order), set up on ebay so you guys can buy from me for let say for $8 + postage. Again, No profit, I just want to get a good deal of these chips, and cover my costs and pass these on to bimmerfest members at cost price.

(Hey...I do not want to get stuck with 100 chips )

Last edited by cn90; 06-04-2007 at 02:17 PM.
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  #2  
Old 06-04-2007, 01:38 PM
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tomibriggs tomibriggs is offline
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Count me in.
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  #3  
Old 06-04-2007, 02:01 PM
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bimmerd00d bimmerd00d is offline
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In like Flynt. I have a spare broked LCM in my parts bin at home. I sure could use a spare for my car
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(as of 11/18/11)
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1998 540i 6-spd. - Sold!
2000 528iA sport - Mom's ride, 308k!!!! and still drives like new
2005 Dodge Ram 2500 Cummins - 145k, 800lb/ft. John Coal Train.
2001 Volvo C70 Coupe T5 - The wife's car, 170k. Needs a timing belt soon
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  #4  
Old 06-04-2007, 02:07 PM
SaveItK SaveItK is offline
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I have no idea what this is.. care to explain a little better?
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  #5  
Old 06-04-2007, 02:27 PM
cn90 cn90 is offline
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The LCM controls lighting in your car.
When it fails, usually the headlight is on (even if you remove the key). It will drain the battery.
A New LCM unit is very expensive in the range of $300-400.
An alternative is "unsolder" the damaged chips and "solder" in new chips for a much cheaper price.
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  #6  
Old 06-04-2007, 02:30 PM
93LE 93LE is offline
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I'd be in
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  #7  
Old 06-04-2007, 02:51 PM
SaveItK SaveItK is offline
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oh ok, thanks!

Brandon, if mine goes out, I'll know where to go for help.
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  #8  
Old 06-04-2007, 03:15 PM
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tomibriggs tomibriggs is offline
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To those who are still wondering what this is all about. Here the link to the orig. thread regarding LCM.

http://www.bimmerfest.com/forums/sho...d.php?t=173903
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  #9  
Old 06-05-2007, 07:11 AM
cn90 cn90 is offline
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The head count so far is 5 including me...
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  #10  
Old 06-05-2007, 09:19 AM
frhsfootball80 frhsfootball80 is offline
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Quote:
Originally Posted by kbuicker View Post
oh ok, thanks!

Brandon, if mine goes out, I'll know where to go for help.
as if i dont have a lcm for sale kevin....
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  #11  
Old 06-05-2007, 10:22 AM
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bimmerd00d bimmerd00d is offline
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Quote:
Originally Posted by frhsfootball80 View Post
as if i dont have a lcm for sale kevin....
You can't re-code a used LCM. He will get a mileage error.
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(as of 11/18/11)
2004 Volvo S60R - The new ride!
1998 540i 6-spd. - Sold!
2000 528iA sport - Mom's ride, 308k!!!! and still drives like new
2005 Dodge Ram 2500 Cummins - 145k, 800lb/ft. John Coal Train.
2001 Volvo C70 Coupe T5 - The wife's car, 170k. Needs a timing belt soon
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  #12  
Old 06-05-2007, 03:23 PM
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tomibriggs tomibriggs is offline
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Quote:
Originally Posted by cn90 View Post
The LCM controls lighting in your car.
An alternative is "unsolder" the damaged chips and "solder" in new chips for a much cheaper price.
Will this require re-programming of the LCM?
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  #13  
Old 06-05-2007, 08:16 PM
cn90 cn90 is offline
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No

Quote:
Originally Posted by tomibriggs View Post
Will this require re-programming of the LCM?
NO,

because the unit was already programmed for your car. Basically you replace the damaged chips with new chips. And that is it.

The analogy is like your house locks, if only the house lock's cylinder pins are bad, you replace the cylinder pins but the house keys stay the same.

cn90
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  #14  
Old 06-05-2007, 08:26 PM
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bimmerd00d bimmerd00d is offline
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Quote:
Originally Posted by cn90 View Post
NO,

because the unit was already programmed for your car. Basically you replace the damaged chips with new chips. And that is it.

The analogy is like your house locks, if only the house lock's cylinder pins are bad, you replace the cylinder pins but the house keys stay the same.

cn90
great analogy!
__________________
(as of 11/18/11)
2004 Volvo S60R - The new ride!
1998 540i 6-spd. - Sold!
2000 528iA sport - Mom's ride, 308k!!!! and still drives like new
2005 Dodge Ram 2500 Cummins - 145k, 800lb/ft. John Coal Train.
2001 Volvo C70 Coupe T5 - The wife's car, 170k. Needs a timing belt soon
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  #15  
Old 06-05-2007, 09:23 PM
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skydryice skydryice is offline
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i'm in.
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  #16  
Old 06-05-2007, 09:32 PM
applecran applecran is offline
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I'd be interested in 1 if it really is that common. I"m assuming that they go one at a time, not both together.
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If you ever need to get rid of a lot of money quickly, buy a bmw and start modding.
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  #17  
Old 06-05-2007, 09:42 PM
BuzzedHornet BuzzedHornet is offline
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I'm in..
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  #18  
Old 06-06-2007, 01:23 AM
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Jason5driver Jason5driver is offline
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Mein Auto: E39 hamster w/ pin-wheel
I will do it too!
Is a headlight flashing out one of the symptoms?
Please let me know what I need to do...
Thank you for all the help!
Jason
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  #19  
Old 06-07-2007, 01:35 PM
dcling dcling is offline
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Headlight's out; so I'm in...

I'll take two. But it seems like we're a LONG WAY to 100...
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  #20  
Old 06-13-2007, 04:19 PM
PJB. PJB. is offline
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I'm in. I'll take two. $16 in unneeded spares now is better than $300 in repairs later.
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  #21  
Old 06-13-2007, 04:34 PM
applecran applecran is offline
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Yeah, i'll take 2 also instead of 1... spares are good.
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'99 540i 6 speed. Black on Black. M5 spoiler. 18" M-Pars, BF Goodrich KDW2s. UUC Big Boy v3 clutch stop. DICE Ipod integration half installed. Metrix Motorsport 3.15 M5 LSD. 03 AE Hellas. M5 rear sway bar. M5 shifter. Custom lit Shift knowb. Umnitza M5 bumper. UGDO retrofit.

If you ever need to get rid of a lot of money quickly, buy a bmw and start modding.
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  #22  
Old 06-13-2007, 10:06 PM
hp0786 hp0786 is offline
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I'll take 2 as well. I have problem with my light right now. it drained my battery so i just unplugged 1 of em. bmw is charging $600 for it with installation, oh hell no!!
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  #23  
Old 06-13-2007, 10:39 PM
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NFS NFS is offline
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Alright. I am in also in for two. I hope this easier then soldering the WIIKey on the WII. How many do we have so far?
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  #24  
Old 06-14-2007, 01:02 PM
cn90 cn90 is offline
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Quote:
Originally Posted by hp0786 View Post
I'll take 2 as well. I have problem with my light right now. it drained my battery so i just unplugged 1 of em. bmw is charging $600 for it with installation, oh hell no!!
Don't unplug the light.
Instead remove the fuse controlling the LCM (either glovebox or trunk I forgot the location) when not driving.

Plug the fuse back in when driving.
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  #25  
Old 06-14-2007, 01:12 PM
cn90 cn90 is offline
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GOOD NEWS... I ordered 100!!!

Alright guys,

I took the plunge and ordered 100 of this chips BTS426L1. The chips will be shipped to me next week .....

It is a pain to deal with these chips companies that rather sell at least 500 and even 10,000 chips to factories and repair shops, not to consumers like us. They make more money this way...
They reluctantly sold 100 chips to me!

Anyway I ordered 100 chips, so you guys...don't let me down (I don't want to sit on these 100 chips, it will be a PITA to sit on these chips...).

I will calculate the cost (shipping + tax)....but it is roughly $8/chip for you guys (shipping included). Still better than spending $400 on a new LCM, I guess.

My 7-year-old son will volunteer to help pack chips and ship to you guys (whoever order the chips).

Here is the question...what do you guys prefer? ebay listing vs direct payment.

(to be honest with you guys I have bought things from ebay but NEVER sold on ebay but will figure it out if necessary!!!!!).

Last edited by cn90; 06-14-2007 at 01:24 PM.
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