Overview - Oil Separator, Crankcase Ventilation

WARNING: This page is about a different car, the 2015 Audi Q7, 2014 Audi Q7, 2013 Audi Q7, 2012 Audi Q7, and 2011 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Crankcase Assembly

Courtesy of AUDI OF AMERICA, LLC

Sealing Plug
- Tightening specification: 20 Nm
Seal
- Replace
Cover with Oil Separator
- With connection for crankcase ventilation
- Removing and installing. Refer to COVER WITH OIL SEPARATOR, REMOVING AND INSTALLING
Bolt
- Tightening specification: 9 Nm
O-Ring
- Replace
Connecting Piece
- For the crankcase ventilation
- Installed position. Refer to Fig 2
O-Ring
- Replace
Bolt
- Tightening specification: 2.5 Nm
Bolt
- Tightening specification: 2.5 Nm
Crankcase Ventilation Hose
- To the cylinder head covers
- Removing and installing. Refer to CRANKCASE VENTILATION HOSES, REMOVING AND INSTALLING
O-Rings
- Replace
Hose for Crankcase Ventilation
- To the air guide pipe
Hose Clamp
Sealing Plug
- Tightening specification: 20 Nm

Fig 2: Crankcase Ventilation Support, O-Rings And Positioning Slot

Courtesy of AUDI OF AMERICA, LLC

-- Install the crankcase ventilation connector -1- with new O-rings into the oil separator cover.

Installed position: the tab -2- must engage into the guide -arrow-.