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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 01-04-2012, 09:45 PM
nobobs62 nobobs62 is offline
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1997 528i LCM High Beam repair

This is an old problem and has many post but I made a video awhile back on how I repaired the LCM and thought I would post a link.

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  #2  
Old 01-05-2012, 08:23 AM
cn90 cn90 is online now
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Very nice link.

It is important for people to note the following:
- BTS425L1 as in your video
- BTS426L1
- VN750

They are probably all the same. As long as there are 5 "legs" on the chip, you are fine.
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  #3  
Old 01-05-2012, 09:55 AM
edjack edjack is offline
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Great video, and editing!!

Shudda turned off the clothes dryer, though.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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  #4  
Old 05-26-2015, 01:01 PM
edjack edjack is offline
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I'm going to have to go down this road myself for my right side high beam.

Anyone who's done this, the question is, should I replace all the headlight transistors at the same time?

Thanks again, nobobs62!
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.

Last edited by edjack; 05-26-2015 at 01:02 PM.
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  #5  
Old 05-26-2015, 01:32 PM
nobobs62 nobobs62 is offline
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I would say absolutely not because other light problems associated with the LCM are basically non existent.

I would buy extra transistors because I had to replace the same transistor again about a year and half later. I think the right high beam just has a design flaw.

I suggest you just replace the transistor for the right high beam.

No-Bob
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  #6  
Old 05-26-2015, 02:40 PM
edjack edjack is offline
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Sounds good. I ordered five from Mouser.

This is the first transistor failure since I've owned the car (14 years).
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  #7  
Old 05-26-2015, 02:40 PM
edjack edjack is offline
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Double post.
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  #8  
Old 05-26-2015, 02:52 PM
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matt540 matt540 is offline
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Thanks for the video, i just ordered the transistors this week.
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  #9  
Old 05-29-2015, 07:08 PM
monkeyman_69 monkeyman_69 is offline
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That was awesome. Based on this I feel I can do this repair. Much better than sourcing a new LCM and dealing w/ compatibility, red dot, and other expected issues. Thanks for sharing.
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  #10  
Old 05-30-2015, 08:02 AM
nobobs62 nobobs62 is offline
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The only part that can be be difficult is the soldering and the precautions that go with it. After you're finished soldering be sure and do a close inspection of the solder tracks for any cross over. Tracks not touching anywhere. Other than that it's just taking your time. Pretty easy really so yes you can do it!

No-Bob
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  #11  
Old 05-30-2015, 11:50 PM
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mjalloul11 mjalloul11 is offline
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I had to change both transistors for high beams in a couple of month apart, the guy changing them said they didnt last because i had 100w bulbs.
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  #12  
Old 05-31-2015, 05:53 AM
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540iman 540iman is offline
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Thankfully, I don't have this problem, but I stumbled across your video. Not just because my computer skills are modest at best, but have been a member here and elsewhere for years and have NEVER seen such a complete, logical, step-by-step video produced basically as a professional would! Best "presentation" ever seen and I have seen many. Great Job nobobs62.

Last edited by 540iman; 05-31-2015 at 05:58 AM.
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  #13  
Old 08-20-2015, 07:40 PM
madfish madfish is offline
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Does anyone know of someone in Perth WA that could do this job for me? I have the new transistors but I'm not good at using a soldering iron.

Cheers
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  #14  
Old 08-20-2015, 09:23 PM
ca2014mp2 ca2014mp2 is online now
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Mein Auto: E39 528ITA
nobob what editing software did you use?
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Series E39 Vehicle code DP63 Model 528ITA Engine M52TU
Body type OTHER Catalog model USA Production date 1999 / 06
Transmission Automatic Steering Left Catalyzer YES

Production FROM : 1998/09/01 TO : 1999/08/31
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  #15  
Old 08-22-2015, 12:28 PM
nobobs62 nobobs62 is offline
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Software

Nothing special, I used iMovie on my Macbook. Very easy to use.
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