Main Light switch function
 

I was playing around with a 2001 Boxster S today and was checking out the function of the main light rotary switch on the left side of the steering column. It seems I have to pull and rotate counterclockwise to access some additional capability.

It seems I was able to pull and rotate CCW to get one setting, (which was intermittent depending on how I positioned the switch) but the other setting was non functional..

can someone explain the intended functionality of this

It's the same thing as every Mercedes since at least the 1970s.

The fact it's not 'merikun standard is a good thing.

Off is straight up.

Selections to the left are sidelights

Selections to the right are park lights and headlights.

First pull out is front foglights

Second notch out is front foglights plus rear foglight (singular).

Foglights don't happen without switch rotated to one of the right positions. (very sensible)