bmw, That micro switch box has a nylon slider that connects with
a rod to the accelerator. I have found, in some cases, the slider
had worn down to the point that it did not 'sit high enough' to turn
on the micro. Also, some had a bent accelerator rod that would
not let the slider go all the way back to turn on micros. Check your
rod and see if it's bent. You can disconnect the rod from the box
and slide it by hand and see if you get 5 clicks. If so, just unscrew
the ends of the rod til' you get it long enough. That cover on the
end of the rod will slide back to let you slip the rod off the little ball.
You can check the slider by holding up on it while you press the
accelerator. If you now get 5 clicks, you need a new slider.
You can fool some of the people all the time, and those
are the ones you want to concentrate on.