How to adjust the timing on an older Mercedes-Benz E350?

[EloiseRose]

Disconnect the battery ground cable, remove the ignition coils, and remove the spark plugs. Pull in the new engine timing chain and rivet it, then rotate the crankshaft in the engine running direction to 55° before the top dead center of cylinder 1 ignition. Rotate the crankshaft 95° in the engine running direction to position it at 40° after the top dead center of cylinder 1 ignition. With the front cover already installed on the cylinder head, check the basic position of the camshaft at 55° before the top dead center of ignition. Install the spark plugs, install the ignition coils, perform an engine test run, and check for any engine leaks.