What does this switch do???

A chance meeting with another local six owner raised this query. We were comparing notes (his was an early 'X' reg 635CSi, in blue, with tan leather and new  rear parcel shelf speaker mounts/cubby covers), and despite owning the car for well over ten years he had a query about the function of one of the switches on the dashboard. Mine ( an '87 model) does not have the same control. Maybe someone can satisfy my curiosity (and maybe his as well!!)

The mystery switch is set just to the left and below the steering column, and it set into the lower dash trim panel. There is a black pushbutton, with a small red latch below it, so that the pushbutton can be latched in the 'on' position. The raised part of the button is rather cryptically marked, '15'.

I daresay someone will know exactly what this mystery control is....

-I was stumped...

cheers

-he may have done, but whatever it did, he clearly hadn't figured it out....

I've got a similar switch in the same position on my '83 635CSi. It's an isolator for the electric windows.

Thus endeth the lesson.

Brucey wrote: -Amen... -ta very much Ivan! -p.s. Q.- all of them or just some of them?

Every single one of them. If you fancy suffocating yourself in summer, that's the button to push....