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Skoda Workshop Service and Repair Manuals

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Removing and installing the sender for fuel gauge displayG > < Removing and installing fuel delivery unit - Octavia II with front-wheel drive

Octavia Mk2

Removing and installing fuel delivery unit - Superb II, Yeti and vehicles with four-wheel drive Octavia II
Removing and installing fuel delivery unit - Superb II, Yeti and vehicles with four-wheel drive Octavia II
Special tools and workshop equipment required
t  Wrench for the lock ring -T30101 (3087)-
t  Protective gloves
Removing
l  The fuel tank must not be more than 3/4 full.
  Note
t  Safety precautions when working on the fuel supply system → Chapter.
t  Observe rules for cleanliness → Chapter.
–  Switch off ignition and withdraw ignition key.
–  If necessary drain the fuel tank → Chapter.
Vehicles Octavia II and Superb II
–  Removing rear seat bench → Body Work; Rep. gr.72.
Vehicles Yeti
–  Remove rear seat bench with brackets → Body Work; Rep. gr.72.
–  Remove floor covering under the rear seat bench.
Continued for all vehicles
   
–  Unclip retaining catches -arrows- of cover for the fuel delivery unit and remove cover.
  Note
For vehicles with auxiliary heating, the plug connection for the dosing pump -V54- must be disconnected additionally.
Vehicles Octavia II
  A20-1206
–  Unplug the 5-pin plug -1-, the black feed line -2- and blue return-flow line -3-.
Vehicles Superb II and Yeti
  M20-0232
–  Disconnect the plug as well as the black feed line -1- and the blue return-flow line -2- from the flange. Unlock the quick coupling and disconnect → Chapter.
Continued for all vehicles
  Note
On vehicles with auxiliary heating the suction line for the dosing pump -V54- must be pulled out additionally (open lower clamp).
  S20-0324
–  Open lock ring with the wrench -T30101-.
  S20-0160
–  Slightly raise the closing flange and check if the spring -2- is still fastened on the flange -1-.
   If the spring -2- is loose on the guide pipe -3-, hold it with your fingers while removing the closing flange.
–  Pull out closing flange and gasket ring of the fuel delivery unit from the opening of the fuel tank and place to the side with the connected lines.
  S20-0325
–  Separate through the opening of the fuel tank the fuel line -1- to the suction jet pump, to do so press the release button.
–  Separate the fuel delivery line -2- from the fuel delivery unit.
  Note
t  You must wear protective gloves for removing the fuel delivery unit.
t  Take the fuel delivery unit out of the fuel tank in such a way that the electrical cables and the fuel hoses are not damaged and that the float arm of the sender for the fuel gauge display -G- is not bent.
t  You must empty the old fuel delivery unit before disposing of it if you wish to replace it.
–  Pull the fuel delivery unit out of the opening of the fuel tank.
Install
The installation of the fuel delivery unit occurs in the reverse order. However, pay attention to the following:
–  Insert the fuel delivery unit into the fuel tank with the closing flange placed to the side. Thus, do not bend the float arm of the fuel gauge sender unit -G-.
–  Install the fuel delivery unit and the fuel line.
–  Insert the new dry gasket ring into the opening of the fuel tank and moisten only from the inside with fuel for installing the closing flange.
  A20-10381
l  The spring -2- must be fastened to the retaining lugs -1- of the closing flange.
–  First of all guide the guide pipe -3- into the guide bore -4-.
–  Then lower the closing flange in such a way that the guide pipe -6- locks into the guide bore -5-.
  Note
  S20-0325
Pay attention that the electrical cables -1- and the fuel feed line -3- are routed according to the illustration and the float arm -2- is not blocked.
–  Press the closing flange down and bring it into the installation position.
  A20-10383
l  The peg -2- at the closing flange must be located between the pegs -1- and -3-.
The thicker -arrow- points in direction of travel.
–  Tighten the lock ring to 110 Nm.
  Note
t  Do not interchange feed line and return-flow line.
t  Make sure the fuel lines fit tightly.
t  After installing the fuel delivery unit, check whether the feed line and the return-flow line are still clipped in place on the fuel tank.
Before starting the engine, the fuel system must be bled as follows:
–  Switch on the ignition and only switch it off once the fuel pump has come to a standstill. Repeat this procedure at least »5 times«.
  S20-0337

Removing and installing the sender for fuel gauge displayG > < Removing and installing fuel delivery unit - Octavia II with front-wheel drive