RE: Inspection Light On&On&On

["Fadeev, Alex" <Alex.Fadeev@xxxxxxxxxxxxxx>]

> The inspection light has been reset and comes back on.
> I have a 1984 728i euro.  Mechanic sez need a new "board".  
> Any other cost effective suggestions?

Certainly!
Remove the instrument cluster, pull the 'board' out of the cluster and
replace the batteries. Those would either be NiCad's (about AA size) or
Lithiums (about 1/2 AA legth). Both types are available for around $10 for
both. The original (or current replacements for the car of you age)
batteries are soldered to the board. You can re-solder new batteries. Or,
optionally, solder a battery holder to the board and place new batteries
into the holder where they will be easier to swap in the future. I could not
find a holder for my board's Lithiums, so I just soldered them in place.
Soldering to the battery contacts directly can be a bit tricky, but is
doable. And way cheaper then $150 for a new board!

good luck,
alex

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