I don't know the S-class fuse lineup but there should be a list on a card in the lid of your fusebox that says what each fuse powers. "Tempomat" should be in the list somewhere -- that is what the Germans call cruise control.

__________________

"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