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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
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    DALE_AVANT Avantage

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    [Aug 18, 2012]
    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
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    DALE_AVANT Avantage

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    [Aug 20, 2012]
    Anyone know this?

    :sm4:
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  4. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 20, 2012]
    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/>
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  5. DALE_AVANT
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    [Aug 20, 2012]
    Sounds like a bit of a mish.

    Anyone got pics of the part I need to remove?
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  6. DALE_AVANT
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    [Aug 22, 2012]
    Anyone happen to have a picture of what I need to remove?
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  7. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 22, 2012]
    A bit like these...
    [​IMG]

    [​IMG]

    <tuffty/>
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  8. DALE_AVANT
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    [Aug 22, 2012]
    Cheers Tuffty.

    If that's the fuel pump, where on that is the sender?
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  9. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 22, 2012]
    The floaty bit on the side :)

    <tuffty/>
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  10. DALE_AVANT
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    [Aug 22, 2012]
    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:
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  11. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 22, 2012]
    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/>
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  12. DALE_AVANT
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    [Aug 22, 2012]
    Cheers.

    is the pump unit easy enough to remove?
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  13. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 22, 2012]
    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/>
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  14. DALE_AVANT
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    [Aug 22, 2012]
    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]
    #13
  15. DALE_AVANT
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    [Sep 16, 2012]
    What's the best way to remove the two fuel lines at the top of the unit?
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  16. DALE_AVANT
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    [Sep 16, 2012]

    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.
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  17. cjsuk
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    cjsuk Active Member

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    [Sep 16, 2012]
    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).
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  18. DALE_AVANT
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    [Jun 5, 2013]
    Can I replace just the sender itself, leaving the original fuel pump?
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  19. DALE_AVANT
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    [Jun 30, 2013]
    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??
    #18
  20. DALE_AVANT
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    [Jul 1, 2013]
    Does anyone know the answer to this?
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