20-1
 
     
Fuel supply system, servicing 
guidelines 
     
Safety precautions
 
     
WARNING! 
     
When removing and installing fuel pump or 
fuel gauge sensor from a partially filled fuel 
tank: 
     
BEFORE beginning work, place exhaust 
extraction system suction pipe near fuel tank 
opening so escaping fuel vapors can be 
immediately sucked off. 
     If no exhaust extraction system is available, 
use a radial fan (with motor located outside 
airflow) with volume of at least 9 cfm. 
     Wear fuel-resistant gloves whenever working 
with open parts of the fuel system. 
     
Be sure the ignition is switched off when: 
     Disconnecting fuel injection system wiring.
     Connecting or disconnecting test equipment 
leads. 
Pa
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11/18/2002 htt
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pair&id=AUDI.B5.GE04.20.1