sensor AUDI A3 1999 8L / 1.G AEB ATW Engines Vacuum Control System Workshop Manual
Page 7 of 8
21-44
 
  
20 - 
Check valve 
Installation position (light/dark side): Arrow 
points in direction of flow, as shown 
21 - 
Charge air cooler With charge air pressure sensor -G31-
22 - 
Throttle valve control module -J338- 
23 - 
Recirculating valve for turbocharger -
N249- Checking  Page 21
-48
24 - 
Intake manifold 
With Intake Air Temperature (IAT) sensor -
G42- 
Pa
ge 7 of 8 Vacuum control s
ystem 
(en
gine code ATW
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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pair&id=AUDI.B5.GE02.21.2