Maybe not very "Technical" but still need some input on this.
2002 E430 with 121,000 miles. Outside of the car holding up great! Inside not so much. Whatever final coating MB put on the steering wheel and other interior surfaces seems to be turning into a sticky gooey mess. Especially on the steering wheel audio/computer control buttons and the stereo buttons.
Has anyone been successful removing this stuff without going full-on MEK?

Thanks....