I actually have a 630 Csi (1977 so it is E12 based; VIN is 5505543)and cannot find any manual other than Haynes or Chilton which are worst than worthless. I was told that I can use the 530 series manual for most work.

I am looking for a factory manual or a Bentley or ?. Will even take one in German if I have to or a hand copied one. I don't like working on a car with only a parts list as a guide!