A4 Sedan L4-1.8L Turbo (AWM) (2001)
Vacuum Reservoir HVAC: Diagrams
Vacuum system, hose layout
NOTE: Testing vacuum system.
1
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Vacuum reservoir
2
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Two-way valve for fresh/recirculating air flap -N63-
3
-
Restrictor
4
-
Fresh/recirculating - air flap vacuum unit
5
-
Vacuum supply hose from engine
6
-
One-way valve