light AUDI A6 1997 C5 / 2.G AEB ATW Engines Turbocharger System Workshop Manual
Page 2 of 50
21-2
 
  
Charge air pressure control, system 
overview
 
Vehicles with manual transmission  
1 - 
PCV valve 
For crankcase ventilation
2 - 
Evaporative Emission (EVAP) canister 
purge regulator valve -N80- 
3 - 
To Evaporative Emission (EVAP) canister 
4 - 
Check valve for Evaporative Emission 
(EVAP) canister Installed position (light/dark): as shown in 
illustration 
5 - 
Turbocharger 
6 - 
Fuel pressure regulator 
7 - 
Intake manifold 
8 - 
To Leak Detection Pump (LDP) -V144- 
9 - 
Crankcase ventilation 
Pa
ge 2 of 50 Turbochar
ger s
ystem
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.21.1 
Page 3 of 50
21-3
 
  
10 - 
Check valve for Evaporative Emission 
(EVAP) canister 
Installed position (light/dark): as shown in 
illustration 
11 - 
Charge air cooler 
12 - 
Vacuum diaphragm For wastegate
13 - 
Charge pressure bypass valve Checking  Page 21
-4
14 - 
Wastegate bypass regulator valve -N75- 
Pa
ge 3 of 50 Turbochar
ger s
ystem
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.21.1