Does it have the little headlight like symbol on it with the rays angling down?  I bought a switch from Ken Wilford a couple of years back for fog lights.  Sounds like that's what you have.  Could be the PO put one in for you or removed the fog lamps sometime back.

Chuck
'85 Wolfsburg Westy - 'Roland the Road Buffalo'

In a message dated Wed, 22 Aug 2001  5:14:47 PM Eastern Daylight Time, Automatic digest processor <LISTSERV@GERRY.VANAGON.COM> writes:

> Date:    Wed, 22 Aug 2001 16:33:43 -0400
> From:    Ed Shultz <eshultz@GENUITY.COM>
> Subject: Switch not referenced in the Bentley Manual
>
> Hey Vanagon Experts,
>
> What is the purpose of the rocker switch in the lower right side of my
> instrument cluster? It looks just like the head light switch on the left. I
> can't find any reference to this switch in the electrical section of the
> Bentley manual. I can find the main head light switch in the manual. This
> switch also has an LED on it. Is it for AUX. or driving lights?
>
> The reason why I ask is that I want to install some aux. head lights and
> would like to use this switch.
>
> Thanks,
> Ed Shultz
> 1987 Syncro GL