Not to point fingers but in the OP you wrote "...i've checked the bulb and it's fine..." So what actually did you do, look at the bulb and it wasn't black? We all make mistakes as we learn, it would be nice to get some learning out of your experience. C'mon, fess up!

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