Oil Separator: Service and Repair
WM 105519 Removing and installing oil separator
Preliminary work
1. Remove engine cover for cylinder 5 to 8. -> 108319 Removing and installing engine cover (design cover) - section on "Removing" 108319 Removing and installing engine cover (design cover).
Information
Component information
Oil separator for positive crankcase ventilation - turbo engine
Oil separator for positive crankcase ventilation - naturally aspirated engine
Removing oil separator
1. Disconnect line connection -1 and 2- on the connection piece for the oil separator -3-. Check sealing ring and replace it if necessary.
Line connections for oil separator
2. Unscrew four fastening screws -4- on the oil separator -3-.
Oil separator
3. Pull the oil separator -3- out of the bore on the valve cover -5- and remove it in an upward direction.
4. Always replace seals -6-.
Installing oil separator
Information
The seals on the oil separator must always be replaced following removal.
Information
- The tightening specifications for the basic engine are stored centrally. -> 1001IN Tightening torques, tightening sequences, assembly overviews [1][2]Specifications. Tightening torques and assembly instructions for other assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.
1. Place oil separator -3- uniformly and carefully onto the valve cover -5- using both hands. Press connection piece of oil separator into the bore on the valve cover.
Oil separator
2. Replace seals -6-.
3. Screw in and tighten four fastening screws -4- on the oil separator -3-.
4. Fit line connections -1 and 2- to the connection piece on the oil separator -3-. Check sealing rings on lines and replace if necessary.
Line connections for oil separator
5. If screw elements are damaged, tap them out of the oil separator and tap in new elements using a plastic hammer.
Subsequent work
1. Install engine cover. -> 108319 Removing and installing engine cover - section on "Installing" 108319 Removing and installing engine cover (design cover).