Oil Check Valves And Oil Separator Overview

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, and 2010 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Oil Check Valve And Oil Separator Overview

Courtesy of AUDI OF AMERICA, LLC

O-ring
- Replace
Oil Check Valve
- 20 Nm
- For oil supply to right cylinder head
Gasket
- Replace
Cover with Oil Separator
- With connection for crankshaft housing ventilation
- Removing and installing, refer to COVER WITH OIL SEPARATOR
Bolt
- 9 Nm
O-ring
- Replace
- Quantity: 2
Connecting Piece
- For crankcase ventilation
- Installed position, refer to Fig 2
O-ring
- Replace
- Quantity: 2
Bolt
- 9 Nm
Bolt
- 3 Nm
Crankcase Ventilation Hose
- Not for US market
O-ring
- Replace
Hose for Crankcase Ventilation
- To the air guide pipe
Hose Clamp
Oil Check Valve
- 20 Nm
- For oil supply to left cylinder head
O-ring
- Replace

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-.