And Merry Christmas to all from snowy but bright and sunny Salt Lake City.

The ACC pushbutton thingy is easy to remove. The wood cover is simply held on by four plastic snaps. Pry carefully and it will pop off. Next, remove the two Phillips flat-head screws in the upper corners of the pushbutton module. That releases the top of the module.

The bottom is held in by fingers molded into the plastic. You must lift the module up while carefully pulling the top towards you (for clearance) until the fingers pop out at the bottom. I found that I could use a flat-bladed screwdriver in one of the slots in the plastic panel of the ACC.

Once the ACC pops free, you can pull it out of the dash enough to see the cables on each side and the string of lamp wiring. Unfortunately, I don't know which pin on which of the two cables delivers power to the ACC. It may in fact be getting power but simply not working. It's strange that the defrost mode (at least) does not work. Mercedes designed it to be the last to fail since almost nothing needs to work for defrost to operate.

Have you tested the blower yet?

Jeremy

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970