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Connecting Hoses & Pipes

All crankcase ventilation systems use connecting hoses and pipes to carry crankcase gases, engine vacuum and/or outside air. Hoses and pipes should be checked for clogging and leaks and replaced as necessary.

NOTE: Following figures are representative of typical crankcase ventilation systems for various manufacturers.
Fig 1: Crankcase Ventilation System (190E 2.3 16-Valve Shown; Other Systems Similar)
G65029Courtesy of MERCEDES-BENZ OF NORTH AMERICA.