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Removing and installing fuel gauge senderG > < Removing and installing fuel delivery unit

A5

Checking fuel gauge senderG
Checking fuel gauge sender -G-
Special tools and workshop equipment required
   
t  Hand-held multimeter -V.A.G 1526E-
  W00-10861
t  Auxiliary measuring set -V.A.G 1594C-
  W00-10008
Procedure
–  Remove rear seat bench → Rep. gr.72.
–  Unscrew cover for flange -arrows-.
  A20-0803
–  Unplug electrical connector -1- on flange.
  Note
Disregard -item 2-.
  A20-10423
–  Connect multimeter (resistance test) between contacts -2- and -4-.
Fuel gauge sender -G- installed:
l  Sender at lower stop: approx. 280 Ω.
l  Sender at upper stop: approx. 65 Ω.
  Note
t  If the resistance is 0 Ω, there is a short circuit. If the resistance is ∞ Ω, there is an open circuit in the wiring.
t  To test the maximum and minimum resistance values for „tank full“ and „tank empty“, remove the fuel delivery unit → Chapter and move the sender float all the way to its top or bottom position.
t  The following values are obtained with the fuel gauge sender removed, due to the greater travel of the float arm:
Fuel gauge sender -G- removed:
l  Sender at lower stop: approx. 288 Ω.
l  Sender at upper stop: approx. 57 Ω.
–  Connect multimeter (resistance test) between contacts -3- and -4-.
Fuel gauge sender -G- installed or removed:
l  Sender in any position: approx. 340 Ω.
Installation is carried out in the reverse order; note the following:
–  Install cover for flange → Fig..
–  Install rear seat bench → Rep. gr.72.
  A20-10410

Removing and installing fuel gauge senderG > < Removing and installing fuel delivery unit