I should have been clearer in my initial post. When I went to the dealer for a headlight adjustment, the service advisor didn't know where the oil change port was. He said he would find out for me, but didn't follow through. Thanks for your help on this.
The adjusted the headlights, but I'd like to know how to do them myself. I've always done the adjustment on my previous cars, but on the E320 it is not obvious which screw is for which adjustment. Can you explain this to me?