Hi
The electric headrest in my 740 seems to have developed a problem.

It will move up electrically, but will not lower electrically. If I push it
down, it will move down to where it should be.
The motor seems to be spinning on both downward and upward directions, and
the headrest (if pushed) will lower to where 'it should be' (if it was being
pulled down)..... ie. it will stop half way down, or go all the way down, if
I hold the button long enough, and push...

I think there must be some mechanism that holds the bottom of the headrest,
that pulls it back down..... There may be something wrong with that part, as
everything else seems ok

Any help appreciated

Thanks