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Removing and installing fuel tank with attached components > < Fuel tank with attached components - exploded view

A4 Mk3

Draining fuel tank
Draining fuel tank
Special tools and workshop equipment required
   
t  Fuel extractor -VAS 5190-
Procedure
–  Observe safety precautions → Chapter.
–  Observe rules for cleanliness → Chapter.
  Caution
To prevent irreparable damage to the electronic components when disconnecting the battery:
Observe notes on procedure for disconnecting the battery.
–  Disconnect battery → Electrical system; Rep. gr.27.
  W00-1107
  WARNING
Risk of explosion caused by electrostatic discharge.
Secure earth wire of fuel extractor -VAS 5190- to a bare metal part on the body.
–  Detach tapered adapter -2- from shaft end -1- of fuel extractor unit -VAS 5190-.
–  Use insulating tape to mark the extraction hose -arrow- at a distance of -a- = 1300 mm from the end of the hose.
  A20-0703
–  Remove filler cap from fuel filler neck.
–  Screw shaft end -1- of fuel extractor unit -VAS 5190- onto fuel filler neck.
–  Push extraction hose into fuel tank until marking on hose -arrow- coincides with shaft end.
–  Extract fuel from tank via fuel filler neck.
–  Pull out extraction hose carefully.
  Note
  A20-0702
t  The procedure when using a fuel extractor without shaft end is basically the same.
t  In this case, make a mark -arrow- on the hose at distance -a- = 1,235 mm from end of extraction hose -1- using insulating tape. The extraction hose has been properly inserted when the affixed mark is level with the edge of the filler neck.
t  If hose is difficult to insert, apply a thin coat of engine oil. DO NOT use silicone-based lubricant.
  A20-0732

Removing and installing fuel tank with attached components > < Fuel tank with attached components - exploded view