AUDI TT 1999 8N / 1.G AEB ATW Engines Exhaust System Components Workshop Manual
								
                                
                
                
                Manufacturer: AUDI, Model Year: 1999,
                  Model line: TT,
                  Model: AUDI TT 1999 8N / 1.G
                
                
                 Pages: 35, PDF Size: 0.46 MB
                    
                							
              
              
  
                
              
              
    
        
         
         
  
                                   
  AUDI TT 1999 8N / 1.G AEB ATW Engines Exhaust System Components Workshop Manual
  TT 1999 8N / 1.G
  AUDI
  AUDI
  https://www.carmanualsonline.info/img/6/951/w960_951-0.png
  AUDI TT 1999 8N / 1.G AEB ATW Engines Exhaust System Components Workshop Manual
            
        
  
 
Trending: catalytic converter, transmission, torque, engine coolant, coolant level, ignition, automatic transmission
Page 1 of 35

26-1
 
     
Exhaust system components, 
removing and installing 
     
WARNING! 
     
Do not re-use any fasteners that are worn or 
deformed in normal use. 
     Some fasteners are designed to be used only 
once, and are unreliable and may fail if used 
a second time. This includes, but is not 
limited to, nuts, bolts, washers, circlips and 
cotter pins. Always follow the 
recommendations in this manual-replace 
these fasteners with new parts where 
indicated, and any other time it is deemed 
necessary by inspection. 
     
Note:  
     Always replace gaskets and self-locking nuts.
     After exhaust system repairs, make sure 
exhaust system is not under stress and that it 
has sufficient clearance from the bodywork. If 
necessary, loosen double clamps and align 
muffler and exhaust pipe so that sufficient 
clearance is maintained to the bodywork and 
the support rings are evenly loaded. 
     
Pa
ge 1 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 2 of 35
The exhaust flexpipe must not be bent more 
than 10 , otherwise it may be damaged. 
Pa
ge 2 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 3 of 35
26-2
 
  
Front-wheel-drive vehicles
 
1 - 
Nut 
40 Nm (30 ft b)
2 - 
Double clamp Before tightening, ensure exhaust system 
is free of stress   Page 26
-24
 
Installation position: bolt ends point toward 
left Installation position of bolt ends   Page 26
-13
 , Fig.   3
 
Tighten bolts evenly
3 - 
Nut 40 Nm (30 ft b)
4 - 
Double clamp Used when front or rear muffler is replaced 
separately Before tightening, ensure exhaust system 
is free of stress   Page 26
-24
 
Installation position: bolt ends point toward 
rear Installation position of bolt ends %page   
Page 26
-13
 , Fig.   3
 
Tighten bolts evenly
Pa
ge 3 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 4 of 35
26-3
 
  
5 - 
Bolt 
25 Nm (18 ft lb)
6 - 
Mount 
7 - 
Gasket Always replace
8 - 
Nut Always replace30 Nm (22 ft lb)
9 - 
Gasket Always replace
10 - 
Turbocharger Removing and installing   Page 21
-30
11 - 
Three Way Catalytic Converter (TWC) 
Protect from damageRemoving and installing   Page 26
-21
Disconnect Heated Oxygen Sensor 
(HO2S) harness connector   Page 26
-21
 
Pa
ge 4 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 5 of 35
26-4
 
  
CAUTION! 
Part numbers are listed here for reference only. 
Always check with your Parts department for 
the latest information.  12 - 
Heated Oxygen Sensor (HO2S) 
50 Nm (37 ft lb)Only grease threads with "G 052 112 A3." 
Do NOT allow grease to get into slots on 
sensor body 
 
Checking Repair Manual, 1.8 Liter 4-Cyl. 5V 
Turbo Fuel Injection &Ignition, Repair Group 24 
13 - 
Nut 
Always replace25 Nm (18 ft lb)
14 - 
Bolt 25 Nm (18 ft lb)
15 - 
16Mount 
  Different versions for manual and automatic 
transmissions Manual transmission   Page 26
-12
 , Fig. 
 1
 
Automatic transmission   Page 26
-13
 , 
Pa
ge 5 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 6 of 35
Fig.  2
 
Pa
ge 6 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 7 of 35
26-5
 
  
17 - 
Front exhaust pipe 
With flexpipeFlexpipe must not be bent more than 10 , 
otherwise it may be damaged To remove, unbolt floor crossmember (20 
Nm/15 ft lb) Align exhaust system free of stress   
Page 26
-24
 
18 - 
Mount 
19 - 
Bolt 
25 Nm (18 ft lb)
20 - 
Rear muffler Factory-installed with front muffler as one 
unit. If repair is necessary, replace 
separately Separating point   Page 26
-14
Align exhaust system free of stress   
Page 26
-24
 
21 - 
Front muffler 
Factory-installed with rear muffler as one 
unit. If repair is necessary, replace 
separately Separating point   Page 26
-14
Pa
ge 7 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 8 of 35
Align exhaust system free of stress   
Page 26
-24
 
Pa
ge 8 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 9 of 35
26-6
 
  
22 - 
Support ring 
23 - 
Bolt 
25 Nm (18 ft lb)
Pa
ge 9 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
        Page 10 of 35
26-7
 
  
All-wheel-drive vehicles
 
1 - 
Front muffler 
Factory-installed with rear muffler as one 
unit. If repair is necessary, replace 
separately Separating point   Page 26
-16
Align exhaust system free of stress   
Page 26
-24
 
2 - 
Gasket 
Always replace
3 - 
Nut Always replace30 Nm (22 ft lb)
4 - 
Gasket Always replace
5 - 
Turbocharger Removing and installing   Page 21
-30
6 - 
Three Way Catalytic Converter (TWC) 
Protect from damageRemoving and installing   Page 26
-21
Pa
ge 10 of 35 Exhaust s
ystem com
ponents, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.26.1 
        
        
            
      
   
Trending: engine oil, coolant level, wheel, torque, warning, lock, fuel