seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Bleeding fuel system > < Supplementary fuel pumpV393: Assembly overview
Checking fuel gauge senderG
Checking fuel gauge sender -G-
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Manual multimeter -VAG 1526C-, see equivalent → Anchor
  W00-10311
t  Auxiliary measuring tool -VAG 1594C-, see equivalent → Anchor
Test procedure
–  Remove the rear seat → Bodywork - interior fitting work; Rep. gr.72.
  W00-10008
–  Release retainers -arrows- at cover for sealing flange.
  A20-1066
–  Release carefully electrical connection -arrow- on sealing flange and take off.
  A20-1067
–  Connect the multimeter for the measurement of the resistance between the contacts 2 and 3.
  A20-1079
Sender fittedSender on the lower limitSender on the upper limit
Fuel gauge sender -G-Approx. 270 ΩApprox. 70 Ω

–  The measurement value 0 indicates a short circuit; the value ∞ Ω indicates an open circuit.
  Note
To check the resistance values of a „full tank“ or those of an „empty tank“ the fuel supply unit must be removed and the sender floater moved to the upper or lower limit.
When the fuel level indicator is removed and due to the large floater range of movement, the following values are obtained:
   
Sender removedSender on the lower limitSender on the upper limit
Fuel level gauge sender -GApprox. 290 ΩApprox. 54 Ω

   

Bleeding fuel system > < Supplementary fuel pumpV393: Assembly overview