Originally Posted by Maxbumpo

The paper copies are superior and have more than what you get on the CD. However, you need multiple volumes. The Chassis/body is two volumes, I have that. It also includes electrical wiring diagrams (entire car on a big fold-out page) which don't have all the changes that happened throughout production. One would also need (I think my list is accurate) the appropriate engine manual, the transmission manual, the maintenance manual, the electrical troubleshooting manual, and the HVAC manual.

I have never subscribed to the WIS (workshop information system) on Startek, so I'm not sure if there is much for 123/124/126/201 and earlier cars.

I've heard that the 126 CD's have far more about the 617 engines than the 123 CD's.