Does the C230 rear fog light only light up on the left or both tail lights?

 

Just the left.

 

Question: There are two settings when using the fog lights in my C230. On the first level of pulling the headlight switch out, turns on fog lights. On the second level, the orange light on the button lights up, what does that mean?

 

The first position turns on just the front fogs lamps.

The second position turns on both the front and rear fog lamps.