17-9
      
Oil pressure and oil pressure switch, 
checking
 
      Operational test and servicing the visible and 
audible oil pressure indicator:  
     
       Electrical Wiring Diagrams, Troubleshooting 
 Component Locations binder.   
     
Test requirements  
     
Oil level OK 
     Oil pressure warning light -K3- comes on 
with ignition on 
     Auto-Check system indication OK, if 
applicable. 
     Engine oil temperature approx. 80 C (176
F) and radiator coolant fan must have 
switched on at least once 
     
Checking oil pressure switch  
     
-  Disconnect harness connector from oil pressure 
switch. 
Pa
ge 10 of 15 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE01.17.1