mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Relays and Modules - Emission Control Systems > < Positive Crankcase Ventilation|Purpose|Page 4964
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Positive Crankcase Ventilation: Testing and Inspection

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. 

Relays and Modules - Emission Control Systems > < Positive Crankcase Ventilation|Purpose|Page 4964