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Repairing electronic power control (EPC) > < Safety precautions

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Fuel tank: draining
Fuel tank: draining
t  Emptying fuel tank if it is more than 3/4 full → Anchor.
t  Emptying fuel tank if it is less than 3/4 full → Anchor
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Fuel drainage equipment -VAS 5190-, see equivalent → Anchor
  W00-1107
t  Spanner -3217-, see equivalent → Anchor
t  Torque wrench -VAG 1331-, see equivalent → Anchor.
–  Note safety precautions before starting work → Chapter
Emptying fuel tank if it is more than 3/4 full .
  Caution
Secure the earth cable of the fuel extractor -VAS 5190- to the bodywork.
  W00-0291
–  Remove the taper -2- from the channel -1- of the fuel extractor -VAS 5190-.
–  Use insulating tape to mark the extraction hose -arrow- at a distance of -a- = 820mm from the end of the hose.
  N20-10268
–  Push extraction hose into fuel tank until marking -arrow- on hose coincides with filler neck.
  Note
A ball valve is located at the lower end of filler neck in fuel tank, which must not be damaged by the extraction hose -1-. Therefore, only push the hose in as far as the tape marking -arrow-.
–  Drain as much as possible from the fuel tank.
–  Carefully extract the suction hose.
  Note
t  When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger.
t  If the fuel tank has to be drained fully, proceed as follows: → Anchor.
Emptying fuel tank if it is less than 3/4 full
–  Fold rear seat forwards.
–  Remove cover from fuel delivery unit.
  WARNING
Fuel supply line is pressurised. Wear safety goggles and protective clothing to avoid possible injury and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection.
–  Separate the plug connection and remove both lines from the fuel supply unit. Also press the release tabs.
  WARNING
The fuel pump unit may be removed only with the tank at maximum 3/4 full. Otherwise a large amount of fuel will escape.
  A20-0732
–  Unscrew union nut with wrench -3217-.
–  Raise fuel delivery unit.
–  Insert the suction hose of the fuel extractor -VAS 5190- as far as possible into the fuel tank and extract the fuel.
If it is only necessary to drain the fuel tank, fit the fuel supply unit again → Chapter.
  A20-0784

Repairing electronic power control (EPC) > < Safety precautions