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SI Board Swap Out Step #10
SI Board Swap Out Step #10
Last but not least - the SI Board.  Above is a new SI Board with lithium batteries and below is the old one.  Note the blown battery on the old SI Board (green circle).  The light blue rectangle shows the actual service indicator LED's which appear on your dash display.  These LED's are mounted on a separate circuit board which must be pulled out of the old SI Board and plugged into the new one.  This is an easy task.  The purple arrow shows the orientation of the SI Board relative to the driver.

Many people do not replace the SI Board but merely solder in new batteries.  I did not feel confident with this approach.  After seeing how the blown battery had leaked acid all over the circuit board I was glad that I had purchased a new one (rebuilt actually, obtained from Stephen at South Motors BMW).

Now, as they say, assembly is the reverse of removal.  Just install the new SI Board into the cluster face and then retrace your steps.  I did not have to reset the SI lights after replacing the SI Board.  They reset themselves.


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