As many do, I had problems with my keyless entry on a '97 850. I read
some threads on it, but nothing worked. (hold it to your chin? REALLY!)

I opened the fob by cutting away the top of the little plastic rivet,
pried out the circuit board, and found much white corrosion on the
"speaker", a little metal disc set in the back wall of the fob. This
disc is contacted by two pieces of metal coming off the circuit board to
control the sound.

I simply scraped off the corrosion on the disc, put everything back
together and it then worked great! I used a little super glue where the
plastic rivet's rod comes through the fob.

I hope this works for you...it's so great to be able to use the system
as intended without the frustrating CLICK-CLICK-CLICK-OH-THE-HELL-WITH-IT.

--
Joe

Joe S wrote:
Are you sure that's a speaker and not the battery?

--
Mike F.
Thornhill (near Toronto), Ont.

Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)

Mike F wrote:

Mike,

"the battery" is 2 batteries and load from a screw-out plug. The
speaker is a metal disc on the opposite side of the circuit board and
you need to force your way into the fob in order to do the cleaning.

Two prongs on the circuit board make contact with the metal
disc/speaker to caue the sound to be made. The disc is thin metal that
looks brass-colored on the outer ring and silver on a slightly-raise
"mesa".


Joe