Mercedes explicitly brags that 603 headbolts don't need to be retorqued; it's repeated in FSM at a couple of places. So yes, there is no retorquing procedure.

Bodhi, start with the easy stuff -- crossover tube gasket, valve cover gasket, then intake manifold gasket.

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