Procedure for replacing the Audi A4 B8 fuel filter
1) remove the rear seat with a strong upward movement, the clips should break
2) Unscrew the 3 screws of the fuel pump cover with a Phillips screwdriver
3) disconnect the electrical contacts from the fuel pump
4) Unscrew the ring (I did it with a hammer and a wooden bar). This is the most difficult, I was busy for 15 minutes. Tip, there are through holes in the top of this ring, so I sprayed it with permeable grease.
5) disconnect the fuel tube, you need to click on the clip, it is removed very easily
6) remove the fuel pump housing, the lower part should be moved along the skids and slightly tilt, attention, the main thing is not to bend the fuel level sensor
7) remove the fuel filter using the complete pullers
8) in the upper part of the filter, install the o-ring (complete with filter)
9) install the pump back, pay attention to the arrow, it must match the label
10) after replacing the filter, it is advisable not to install the rear seat back, it is better to go to the gas station, fill up almost to the full tank and make sure that there is no leakage of gasoline from under the ring
11) if there is no leak, install new clips and install the rear vision
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According to the regulations of the official dealer on the 1.8 TFSI Audi A4 fuel filter for the entire life of the car and do not need to change it, but I would recommend changing it every 60000 km
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