Hello Guy's

Need some advice here, I have a 2001 Audi TT Quat. recently the primary fuel pump started making alot of noise from the passenger side rear seat area, Then the car started to exhibit fuel starvation problems.

I ordered a complete VDO/Siemens fuel pump assembly which included the pump, reservior/strainer and fuel sending unit all put together and ready to drop in. I also got a new rubber gasket.

I also replaced the fuel pump relay and fuel filter at the same time just to beon the safe side.

Prior to this the Fuel Gauge had always functioned normally.

I followed the instructions on the web and my Audi factory repair manual and the install of the new fuel pump, relay and filter went pretty smooth, all wires, hoses and the clip on piece were reattached to the new pump. I aligned the install arrow on the pump to the one on the tank. Put it all back together and car started and ran fine.

The fuel tank was just under half and the gauge seemed to read correctly.

NOW THE PROBLEM

I started the car to drive to work, got about 5 miles and got an audible tone warning and the low fuel symbol on my central display in the cluster when I checked the gauge it showed in the red near Empty.

I knew this was wrong but wanted to see what it would do so I filled it up at the next gas station it took about 7-8 gallons.

The gauge now read just under or right at 1/2 tank.

Came home after work, opened the tank the fuel was right to the top of the opening checked the movement of the sender arm which moved freely and seemed very loose. Reinstalled and no change.

Removed the new pump assembly and checked the wires to the sender, they seemed secure, I then removed the old sender unit from my pump and put it on the new pump and reinstalled it, thinking there might be a problem with the new sender ?

Now the gauge does not move from Empty at all and the low fuel warning dings and is showing the fuel pump symbol all the time in the display.

I un-hooked the battery and let the car sit to see if it would reset- no change

I pulled the fuses to the cluster and fuel pump, cycled the ignition switch and reinstalled the fuses - no change.

I am at a complete loss as to what the fark just happened, car runs great, starts right up no fuel starve problem.

Does anyone have any idea what to do next ???

Todd
S. Georgia USA