For about thirty years at least, there are six positions on U.S. imports. Middle position, straight up, is the off position. All lights are off. Two clicks counter-clockwise illuminates the left side "parking" lights. One click counter-clockwise illuminates the right side "parking" lights. One click clockwise is all the parking lights. At this position, you can pull the knob toward you to turn on either the fog lights or running lights, whatever is installed on your car. Two clicks clockwise turns on the headlights, (parking lights stay on). At this position also, you can pull out the knob to turn on the fog/running lights. Don't know about pulling out two clicks. Never heard of that before. When you turn the knob back to "off", it automatically turns off the fog lights too.

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-Steven

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1959 190b, totalled
1968 220D, sold
1969 230/8, sold
1980 240D manual, gave away at 300k (stupid me)
1985 190D 2.2 manual, gave away to a youngster
1989 300CE, sold when I retired - major regrets