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A3 1.8 non-turbo - Fuel guage sensor/sender

Discussion in 'A3/S3 Forum (8L Chassis)' started by DALE_AVANT, Aug 18, 2012.

  1. DALE_AVANT

    DALE_AVANT Avantage
    Audi Avant Owner Group Audi A4

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    Hi all.

    Our A3's fuel guage is all over the place at the moment, so I'm going to clean/replace it.

    Having done a search, I have found that it is located under the rear seats, but which side is it (there are two round items), and which sensor is the guage sender?

    Many thanks
     
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  3. DALE_AVANT

    DALE_AVANT Avantage
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    Anyone know this?

    :sm4:
     
  4. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Drivers side one and the fuel sender is integrated to the fuel pump unit... not sure if its available as a seperate unit... buy one from a dealer though as after market parts don't seem to fit or work properly..

    <tuffty/>
     
  5. DALE_AVANT

    DALE_AVANT Avantage
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    Sounds like a bit of a mish.

    Anyone got pics of the part I need to remove?
     
  6. DALE_AVANT

    DALE_AVANT Avantage
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    Anyone happen to have a picture of what I need to remove?
     
  7. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    A bit like these...
    [​IMG]

    [​IMG]

    <tuffty/>
     
  8. DALE_AVANT

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    Cheers Tuffty.

    If that's the fuel pump, where on that is the sender?
     
  9. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    The floaty bit on the side :)

    <tuffty/>
     
  10. DALE_AVANT

    DALE_AVANT Avantage
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    Haha cool, cheers.

    So I would need to remove the fuel pump to get to the sender to clean I assume?

    We put £20 in yesterday and it said the tank was full - WINNER :haha:
     
  11. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    In my experience cleaning won't fix it... its a carbon track that wears out so replacement is the only option... I changed the one on my A4 once... was about 30 quid from a dealer...

    <tuffty/>
     
  12. DALE_AVANT

    DALE_AVANT Avantage
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    Cheers.

    is the pump unit easy enough to remove?
     
  13. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
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    Fairly... search through Westy's build thread as he has done a pump swap on his S3... will be similar to what you need to do

    <tuffty/>
     
  14. DALE_AVANT

    DALE_AVANT Avantage
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    In case anyone else is reading this, I have taken the below from W3STY's progress thread (many thanks):


    Back seats out and service panel off:

    [​IMG]

    Fuel clips and electrical clip off:

    [​IMG]

    Top of pump off:

    [​IMG]

    Whole pump out. Staring into half a tank of V power [​IMG]

    [​IMG]

    Was starting to get a headache from the petrol fumes at this point but cracked on.

    Lovely new clean pump:

    [​IMG]

    Bottom part in:

    [​IMG]

    All done:

    [​IMG]
     
  15. DALE_AVANT

    DALE_AVANT Avantage
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    What's the best way to remove the two fuel lines at the top of the unit?
     
  16. DALE_AVANT

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    In answer to this, there is a small concealed clip at the "front" of the fuel line where it meets up to the pump, push this in and twist gently, off it pops.
     
  17. cjsuk

    cjsuk Active Member

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    Looks exactly the same as my pump and sendor on my old focus, i mean exactly the same wow lol anyway if it is, it's pretty easy, just like mentioned tho the fumes will be overpowering leave doors open and if you smoke, dont! (like i did, then realised and slowley removed myself from the car, those were the days).
     
  18. DALE_AVANT

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    Can I replace just the sender itself, leaving the original fuel pump?
     
  19. DALE_AVANT

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    Took the fuel pump out today and replaced the sender with a new part.

    Question.......should the float sit on the drivers side of the pump or the passenger side??
     
  20. DALE_AVANT

    DALE_AVANT Avantage
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    Does anyone know the answer to this?
     

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