Overview - Crankcase Ventilation

Fig 1: Exploded View Of Crankcase Ventilation

Courtesy of AUDI OF AMERICA, LLC

1. Camshaft Housing
2. Hose/Plug
   • Depending on the version
3. O-Ring
   • Equipped on some models
   • Not available separately; replace if leaking  OVERVIEW - CRANKCASE VENTILATION or damaged
4. Seal
   • Replace after removing
5. Crankcase Ventilation Module
   • Refer to CRANKCASE VENTILATION MODULE, REMOVING AND INSTALLING 
   • Refer to PRESSURE REGULATING VALVE, REMOVING AND INSTALLING 
6. Grommet
7. Seal
   • Replace if damaged
8. Cap
9. Bolt
   • Tightening Specifications and Sequence. Refer to Fig 2.
10. O-Ring
    • Not available separately; replace if leaking  OVERVIEW - CRANKCASE VENTILATION or damaged
11. Hose
    • For the crankcase ventilation
    • The crankcase ventilation hose cannot be removed from the air duct pipe without damage. Refer to OVERVIEW - CHARGE AIR SYSTEM .

Fig 2: Crankcase Ventilation Module - Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts in the sequence shown to 9 Nm.