Documentary: Octavia 1 / Golf IV fuel gauge malfunction (Solution)

Vehicles: Golf IV / Octavia 1, 1.9 TDI with pump injector technology.

Problem description: The fuel gauge intermittently and non-reproducibly displays a normal reading initially, then suddenly jumps to a much higher value ("The car appears to be filling itself up while driving").

If the fuel level sensor fails, you will eventually run out of gas even with a "full" tank. In some cases, the fuel pump priming pump also doesn't activate when the ignition is turned on (the typical "gluckkkk" sound for 1-2 seconds).



Solution: Fold up the right-hand rear seat, remove the carpet, loosen and pry off the cover over the fuel filler opening (black) using 3 screws. Disconnect the connector from the fuel sensor/pump, apply some contact cleaner to the contacts, and reassemble.



Sure, here's the translation:

"Perhaps you could include some tips and tricks in the articles."