Repair e39 Light module. BTS426L1 alternative component for the BMW E39 LCM (Light module)..

June 18th, 2007 by ltz

So it happened on my e39 as well.. The right headlight just would not shut off. Even if the car was turned off and locked, the right headlight was still on. It’s an well known problem, but it seems the components are getting harder and harder to get ahold off. The first replacement component, BTS 426 L1 (Farnell is out..) The suggested alternative components were’nt availiable to swedish non-company customers (VN21 availiable from ST. VN21). Instead, the only component I could get ahold of was the BTS426L1 surface mounted (see product image). This component was not supposed to be mounted this way, but mine have been used this way some 600 km’s now and seems to be working.

Have a look at the images from the operation.
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Allright, the process should be visible on the pictures..


Update:

  • The soldering to the surface mounted component is secured with melting glue before pressed against the cooling element.
  • The unit is from a bmw 525tsa -97 e39.
  • I did try fixing the surface mounted component directly upon the old connectors, ending up destroying one surface mounted component..

  • Posted in Uncategorized | 3 Comments »

    Putting this show on the road..

    October 27th, 2006 by ltz

    Every single day of software development we encounter problems, which we develop solutions for. Every time you develop a solution for a software problem, you can bet yourself there will be a number of people out there that have a better solution for the same problem. My plan is to share, at least my own, small solutions for the daily development problems and maybe someone else can use the information found here to manufacture an even better solution.

    The thought behind this website is not to limit the problems to a specific architecture. Google and similiar search engines will do a splended job in indexing this site, making people find what they are after through search engines instead..

    Posted in Uncategorized | No Comments »

    Pierre Norraeus
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