Diesel Vacuum Source Troubleshooting and Repair by Kent Bergsma

This guide is written specifically for owners of 123 and 126 diesels up to 1985. There are some sections that apply to the 115 and 116 chassis but it is not specific to those models. This manual covers understanding how the vacuum system works, common symptoms of trouble, possible causes, and testing and repairing the problems. Deals mostly with issues from the firewall forward like testing the vacuum pump, repairing shutoff problems, finding leaks, etc.

It only gives a quick overview of the vacuum locking system (this subject is covered more thoroughly in my vacuum door lock troubleshooting guide). It does not cover the vacuum climate control system under the dash nor does it offer advanced vacuum diagrams (I do include a vacuum diagram forward of the firewall for the turbo 5 cylinder engine to 1984 and the 1980 to 1982 240D). Learn the tricks on how to fix that annoying shut off delay problem, hard brake pedal action, hard shifting, and as well as other vacuum related troubles. 50 pages in length and loaded with pictures and descriptions.

SKU: MRM-DSLVST