Overview - Crankcase Ventilation

WARNING: This page is about a different car, the 2015 Audi A7 Quattro, 2014 Audi A7 Quattro, 2013 Audi A7, and 2012 Audi A7. 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
- 20 Nm
Seal
- Replacing
Cover with Oil Separator
- With connection for crankcase ventilation
- Removing and installing, refer to OIL SEPARATOR, REMOVING AND INSTALLING .
Bolt
- 9 Nm
O-Ring
- Replacing
- Quantity: 2
Connection
- For the crankcase ventilation
- Installed position, refer to Fig 2
O-Ring
- Replacing
- Quantity: 2
Bolt
- 2.5 Nm
Bolt
- 2.5 Nm
Crankcase Ventilation Hose
- To the cylinder head covers
- Removing and installing, refer to CRANKCASE VENTILATION HOSES, REMOVING AND INSTALLING .
O-Rings
- Replacing
Hose for Crankcase Ventilation
- To the air guide pipe
Hose clamp
Sealing Plug
- 20 Nm

Fig 2: Identifying Installation Of Crankcase Ventilation Connector

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-.