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  1. #1
    Reverse Gear

    Join Date
    Oct 2009

    fuel filter housing

    Hi i have an audi a3 tdi 170 on a 2007 plate. I have just changed the fuel filter on it but it seems to be leaking from the lid.
    I have replaced the O ring and made sure to tighten the 5 torx screws one by one and opposite to each other thus maintaining even pressure. I have checked and cleaned both the surfaces on the canistor and the lid but it and made sure they are not deformed
    but still leaks. What am i doing incorrect or am i missing something? The new filter only came with an oring.
    Not a very good design in my oppinion.

    My other question is can i replace the whole housing for an earlier type which had top sealing ring on it(looks like olympic rings).


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  3. #2
    max69vk's Avatar
    3rd Gear

    Join Date
    Apr 2012
    Kingston upon Thames
    Did you prise the lid off with a screwdriver? You may have bent the top plate if you did, so use a pair of mole grips to clamp the top & bottom parts of the filter housing together which should seal things up again.
    TDI PD170 S-Line Sportback... 191.2bhp & 290lb/ft torque @ standard with an iffy turbo! No idea with the new one or Shark Stage 1 remap installed, DPF off Stage 1 ready to go, Suspension & wheels to be fitted!
    Bits for sale...
    Genuine S-line 18" alloys, A3 Sportback rear lights. A3 5dr window switches & mirror switch. , Brand new PD170 engine cover. PM for details.

  4. #3
    Reverse Gear

    Join Date
    Oct 2009
    I used a plastic trim removal tool. I think i have sorted it now. you have to refit the lid a certain way, ie there is a lip on the opposite side of where you prise to open, you have to hook it over then tighten the screws and not the conventional way of put the lid level then tighten the screws oppposite each other. hope that makes sense.



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