Page 1 of 5
24-187
 
  
Vacuum diagram 
1 - 
to EVAP canister 
2 - 
Evaporative Emission (EVAP) canister 
purge regulator valve -N80- 
3 - 
Check-valve for EVAP canister 
between EVAP canister and intake 
manifold before turbocharger Installation position (light/dark side): Arrow 
points in direction of flow, as shown in 
figure. 
4 - 
Air cleaner housing with Mass Air Flow (MAF) sensor -G70-
5 - 
Turbocharger 
6 - 
Combination valve for secondary air 
injection (AIR) 
Pa
ge 1 of 5 Vacuum dia
gram
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.6 
         
        
        
     
        
        Page 2 of 5
24-188
 
  
7 - 
Fuel pressure regulator 
8 - 
To brake booster 
9 - 
Check-valve 
Between brake booster and intake manifoldInstallation position (light/dark side): Arrow 
points in direction of flow, as shown in 
figure. 
10 - 
Vacuum booster 
11 - 
Check-valve Between brake booster and intake manifoldInstallation position (light/dark side): Arrow 
points in direction of flow, as shown in 
figure. 
Pa
ge 2 of 5 Vacuum dia
gram
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.6 
         
        
        
     
        
        Page 3 of 5
24-189
 
  
12 - 
Vacuum reservoir 
Installation location: Under wheel housing 
liner in front left wheel housing 
13 - 
Secondary Air Injection (AIR) solenoid 
valve-N112- Installation location: Below intake manifold
14 - 
Crankcase ventilation 
15 - 
Check-valve between Leak Detection Pump (LDP) and 
intake manifold Installation position (light/dark side): Arrow 
points in direction of flow, as shown in 
figure. 
16 - 
to Leak Detection Pump (LDP) -V144- 
Pa
ge 3 of 5 Vacuum dia
gram
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU07.24.6