Flashing brights when signaling right
 

Now that my 300E has finally hit 20 years old, and it's getting closer to that 200,000mi mark, it's starting to have those fun, old car issues.

This evening whenever I signaled right, the brights would come on. Quite embarrassing. If I just hold the blinker with my pinky and don't fully engage it ....the brights don't come on. But the minute I signal full right, the brights come on. I assume I will need a new stalk?

Yes, most likely the combination switch

Similar issues
 

I have similar issues on my euro 450slc 107 when I put my left blinker on my left high beam flashes together with the blinker, and if I pull the lightswitch to switch on front fog lights the wipers come on!!