I tried all 3 procedures , it wont work :( i 've pulled out now 2 codes:

Thursday, 12 November 2009, 22:34:14
VAG-COM Version: Release 409.1-US

Control Module Part Number: 4D0 919 035 A
Component and/or Version: D2-KOMBIINSTRUMENT D33
Software Coding: 00283
Work Shop Code: WSC 02314
2 Faults Found:
00771 - Fuel Level Sensor (G)
30-10 - Open or Short to B+ - Intermittent
00667 - Ambient Temperature Signal
30-10 - Open or Short to B+ - Intermittent

I am lost again :O(

Car started after I put 10 gallon of gas in the tank and now the tank is 3/4 full. It worked on 700rpm for like 2 minutes and after I tried to press the gas pedal it died. It wont start again, I mean it starts for a second , I think is something with fuel pump . Fuel level code is on and brake light switch code! Any ideas ? Thanks

Very well could be the pump and filter. Sediment in the tank could have clogged up the pick up screen and or fouled up the pump by having a clogged fuel filter. I would definately change them both given those are your only fault codes.

Can you please tell me where is fuel filter located and how to change it , and is it easy to change that fuel level sensor and are there any instructions on the web? I was trying to find but none were related to audi :(

The filter is under the car right in front of the right rear wheel. The senders can be kinda difficult to do if you haven't done one before. There are 3 total to change. You need to remove th rear seat bench to get at two of the access holes, the other one is in the trunk. I wouldn't recommend you replace the level sensors on your own.