Switch starting at the off position and commencing 1 click at a time...with car running
Off: #1 lights up (LED DRL)
Parking lights: 1 & 5 are on (as seen in the above pic. #5 is a very dim, and seems almost useless in terms of brightness. It can barely be seen over the DRL's.
Headlights: 1, 5, & 4
Auto: haven't checked to see what would happen at dusk/dawn. Don't know whether car automatically goes from DRLs to full headlights.
#4 is the LED projector headlight. It is both the high and low beam in one.
#3 is a reflector with no bulb at all. It does absolutely nothing!
#2 is the turn signal.
I figured when i clicked the switch one step from off to "parking lights", I should have gotten #1, & #5...and #2 at some brightness less than full brightness. But, it seems #2 only comes on when the turn signal is activated.
Is this the same for everyone's SL premium? I assume that the S and SV make use of #3, but not my SL...