sensor AUDI S4 1997 B5 / 1.G 01E Transmission Remove And Install Workshop Manual
Page 4 of 21
34-21
      
-  Remove coolant system expansion reservoir 
and lay to one side. 
    
-  Unplug connector for oxygen sensor on left (arrow -2-) and move wire 
for oxygen sensor clear. 
    
-  Unplug connector for oxygen sensor on right -1- and move wire for 
oxygen sensor clear. 
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11/19/2002 htt
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yp
e=re
pair&id=AUDI.B5.TM03.34.2 
Page 10 of 21
34-27
 
    
Note:  
Avoid excessive bending of the flexible pipe connection (decoupling 
element) on the front exhaust pipe. The angle between the catalytic 
converter and the front exhaust pipe must not exceed 10  , otherwise the 
flexible connection will be damaged.  -  Loosen clamp -3-, lift heat shield -2- slightly and unscrew remaining 
nuts -5-. 
-  Lift heat shield -2- and pull out front exhaust pipe together with catalytic 
converter -4-. 
-  Note that oxygen sensor -1- and oxygen sensor wire have to be guided 
through opening in heat shield -2-. 
    
A - Axle stand  
B - V.A.G 1383A  -  Lift the transmission for access to the two lower bolts securing engine 
to transmission (  A34-0173 below). 
Pa
ge 10 of 21 Transmission, removin
g and installin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM03.34.2