Pull the valve cover and set the crank to TDC on cylinder #1. The timing marks on the camshaft should line up. If not, you can use the degree scale on the crank to determine how many degrees you are off. Don't rotate the crank backwards and don't use the camshaft bolt to rotate the engine.

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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