The OM617 engine has a different vacuum pump; the problems posted here relate to the early vacuum pumps on OM60x engines. I've not heard of the OM61x-style vacuum pumps having this problem; I never had any problems when I had an '85 300D-T.

BTW, is your car a T-sedan (station wagon)?

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