I've got a '79 300SD and need a good repair manual and/or information books. I'm very new to Diesels and to Mercedes but have a fair amount of self-taught experience working on my old in-board boat with a Ford 351.
I bought the Chilton's Mercedes 1974-84 Repair Manual but I'm not impressed. It shows where the dipstick is and how to hone the cylinder walls but not much in between. It's kind of a joke really.