Hi, Does anyone know where i can purchase a repair manual for a 1972 300sel 4.5L. Ive been looking online and i cant find anything exclusively written on that car. My car is at the mechanic and he wont start working on it unless i bring him something with diagrams. The car just stopped running one day so i need a book with probably fuel system diagrams. Ive purchased two books and neither one was any help. Even a book for a different model but the same engine. I dont know much about the car but i love it and want to have it fixed. Any help is appreciated.. Thanks in advance.