You can tow-start a Mercedes at speeds up to about 30 mph because of the back pump. However, with the front pump not turning (until the engine catches), there's no fluid circulation through the cooler and eventually the transmission fluid will overheat.

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"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