Very hard to find Factory Electrical System Troubleshooting Manual for earlier 201 chassis 190E 2.3, 190E 2.3-16, and 190E 2.6. Contains trouble shooting tips and has loads of wire diagrams for every system in the car. Even has a pictorial section on electrical component location. Lots of pages - approximately 3/4 inch thick. Publishing date is 1988. Manual in very good conditon will virtually no interior grease and heavy dirt marks.
Loaded with large and easy to read wiring diagrams