My '85 should be electrically identical to yours (except for the Calif. smog stuff) and the wiper delay is several seconds, so yours must be defective. The delay relay is behind the instrument cluster, about where the oil pressure gauge is, according to the (CD-ROM version) FSM. I would guess that all W123 cars (and maybe more) had the same delay relay so you could get a used one from a junkyard or used parts supplier. Looks like the part number is 000 821 08 63, $36 from ******** Arizona. I can't find the part in the EPC.

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