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Removing and installing fuel delivery unit - Superb II, Yeti and vehicles with four-wheel drive Octavia II > < Extract fuel from the fuel tank

Octavia Mk2

Removing and installing fuel delivery unit - Octavia II with front-wheel drive
Removing and installing fuel delivery unit - Octavia II with front-wheel drive
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  If necessary drain the fuel tank → Chapter.
t  Safety precautions when working on the fuel supply system → Chapter.
t  Observe rules for cleanliness → Chapter.
–  Switch off ignition and withdraw ignition key.
–  Removing rear seat bench → Body Work; Rep. gr.72.
   
–  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.
  A20-1206
–  Unplug the 5-pin plug -1-, the black feed line -2- and blue return-flow line -3-. Unlock the quick coupling and disconnect → Chapter.
  Note
On vehicles with auxiliary heating the suction line for the dosing pump -V54- must be pulled out additionally (open lower clamp).
  M20-0232
–  Slacken lock ring with the wrench -T30101-.
  Note
When removing and installing, ensure that the float arm of the sender for fuel gauge display -G- is not bent.
–  Pull the fuel delivery unit and the gasket ring out of the opening of the fuel tank.
  Note
You must empty the old fuel delivery unit before disposing of it if you wish to replace it.
Install
–  Installation is performed in the reverse order, pay attention to the following points:
  Note
t  Insert new dry gasket ring into the opening of the fuel tank.
t  The gasket ring must only be moistened on the inside with fuel before assembly of the fuel delivery unit.
t  When installing, do not bend the float arm of the fuel gauge sender unit -G-.
  S20-0160
t  Observe the fitting location of the fuel delivery unit. The marking -3- on the flange must point against the direction of travel. The fuel delivery unit can only be installed in this position.
t  Do not interchange feed line and return-flow line.
t  Tighten the lock ring to a tightening torque → Chapter.
t  Make sure the line connections fit tightly.
t  After installing the fuel delivery unit, check whether the feed line and return-flow line are correctly 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«.
  S20-0336

Removing and installing fuel delivery unit - Superb II, Yeti and vehicles with four-wheel drive Octavia II > < Extract fuel from the fuel tank