Overview - Crankcase Ventilation

WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Crankcase Ventilation Exploded View

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Cylinder Head Cover
Seal
- Replace if damaged
Hose
- To the EVAP Canister Purge Regulator Valve 1 -N80-
Oil Separator
- Removing and Installing. Refer to OIL SEPARATOR, REMOVING AND INSTALLING .
Seal
- Replace if damaged
Hose
- For the crankcase ventilation
- To the turbocharger
Bolt
- Thread cutting
- Position the bolt by hand and tighten it until it finds the old threads. Then tighten the bolt to the specification.
- 4 Nm
Seal
- Replace if damaged
Bolt
- Thread cutting
- Position the bolt by hand and tighten it until it finds the old threads. Then tighten the bolt to the specification.
- Tightening specification and sequence. Refer to Fig 2.

Oil separator - tightening sequence

Fig 2: Oil Separator - Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Tighten the bolts to 9 Nm in the following sequence: -1 to 7-.