Bosch Booklet 17 «2025»

Modern aftermarket repair databases often contain errors when referencing 50-year-old injection systems. Bosch Booklet 17 is the original source. If you want the exact factory pressure specification (e.g., 5.1 bar system pressure for a 1974 Porsche 911 CIS), you do not trust a forum post—you trust Booklet 17.

: Detailed overviews of filter materials, dirt absorption capacity, and differential pressure. bosch booklet 17