Sound like a good idea to have access to parts on line. I have a parts book, but the online would save that expense. Also, my parts book is for a 94 R62 and we just bought a used 96 R62, so my parts book is good only for the 94 model. Dealers don't hav to worry as they will be where the parts come in. The online would allow us to search for the local dealer who has the part on hand and cut out a lot of driving and down time.