I have both the original paper 103 engine manual and the 126 CD-Rom. The job descriptions in the paper 103 engine manual are identical to what's on the CD. I've found that the info on the CD is a little clearer if you happen to have access to a VERY good printer. I've also noticed there's a difference in CD photo quality depending on the monitor connected to your PC. I'm not sure what other options exist, but I do agree, overall, the MB photo quality is poor compared to what other MFGs produce.
1991 300-SEL - Model 126
M103 - SOHC
James Madison - Oppressors can tyrannize only when they achieve a standing army, an enslaved press, and a disarmed populace.
Liberty Firearms Training - After years of trying to regulate California criminals with a never ending stream of gun control laws they have still not given up with the belief that if they make something a crime that criminals will miraculously start obeying the law.