I'm sure most of you have this same issue.

My button feels like it has honey all over it.

I think you have to replace the whole vent to get a new switch.

Did anyone use goo-gone on the switch? What was the outcome? I don't want to ruin it.

I guess I'm the only one with this sticky situation.

I used isopropyl alcohol, and the stickyness was gone.

Wheres it come from?

You can buy it at any drug store. It's commonly referred to as rubbing alcohol.

I think the soft plastic coating they use on the buttons turns into a gooey mess after a few years. At lease the earlier model W203 SL's do.

Mine too, let me know the results when you applied the isopropyl alcohol.

Thanks for the recommendation! It worked like a charm. It only took a minute to make my buttons look and feel brand new again.

It's amazing what IPA cleans

A more expensive but convenient to use on those switches would be to use aerosol "Contact cleaner" normally used to clean electronic component. They are good solvent yet does not leave any residue.