mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Positive Crankcase Ventilation|Locations|Page 3542 > < Positive Crankcase Ventilation|Locations|Page 3540
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Positive Crankcase Ventilation: Testing and Inspection

PCV System

1.

Check all hoses/lines for general condition, restriction and routing. If a hose/line is oil saturated, cracked, hard from heat, restricted or mis-routed,
repair/replace or rerout as needed.

2.

Blow through hoses/lines. Be sure all passages are open. Repair/replace any blocked passage. 

Positive Crankcase Ventilation|Locations|Page 3542 > < Positive Crankcase Ventilation|Locations|Page 3540