Passat Wagon L4-1.9L DSL Turbo (AHU) (1997)
Fuel Filter: Testing and Inspection
1. Return line
-
From Diesel injection pump
2. Supply line
-
To Diesel injection pump
3. O-ring
-
Replace
4. Control valve
-
Installation position: arrow points towards fuel tank
-
When changing filter, remove retaining clip and control valve complete with fuel lines
-
Below + 15°C: Passageway to filter open
-
Over + 31°C: Passageway to filter closed
5. Retaining clip
6. Return line
-
To fuel tank
7. Supply line
-
From fuel tank
8. Fuel filter
-
Arrow marks direction of flow
-
Do not interchange connections
-
Replace if damaged
9. Gasket
-
Replace if damaged
10. Water drain plug
-
To bleed, remove mounting clip and control valve as an assembly (with fuel lines attached)
-
Loosen and allow approx. 100 cc's fluid to drain