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fuel cap wont open?? cold weather maybe

Discussion in 'A3/S3/Sportback (8P Chassis)' started by RU55SSO, Nov 28, 2010.

  1. RU55SSO
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    RU55SSO Member

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    [Nov 28, 2010]
    Hey guys. my fuel cap wont budge i press it inwards to release the popper but nothing happens. cant get it open atall. dont want to pull it and force it. anyone else had this problem atall? could it be due to the cold weather. as the whole car has got frozen ice on it. maybe the popper has frozen?
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  3. Lee_R
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    Lee_R Active Member

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    [Nov 28, 2010]
    Yeah guaranteed mate! Happend to me a few times in bad weather last year. Give it a tap, if that doesnt work squirt some de icer in the gap! Worked for me.
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  4. Dean's A3
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    Dean's A3 TDI S3 Hybrid

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    [Nov 28, 2010]
    There is a manual release behind one plastic black popout halfway up in the luggage compatment on the right hand side. When you pop it out there should be a red coloured plastic rod that you have to pull to release the locking pin on the fuel flap.
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  5. RU55SSO
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    RU55SSO Member

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    [Nov 28, 2010]
    cheers for that guys. Learning new stuff with the car day by day.
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  6. PaulTheo
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    PaulTheo Member

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    [Nov 28, 2010]
    But be careful the manual release could break something if you pull too hard if it is frozen. Never tried mine so not sure but would not want you to damage it.
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  7. jungleman
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    jungleman Well-Known Member

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    [Nov 28, 2010]
    humm personally i wouldnt like to spray deicer on paint work, rather get some hot-ish water and use that instead
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  8. NHN
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    [Nov 28, 2010]
    Didnt he say the fuel cap, not flap, hot water as its a sealed hole with the cap anyway, so wont go into the tank.

    Also if the flap solenoid is frozen, dont pull the red plastic as it will potentially snap & then when it truly is busted in not so cold weather you're fecked.
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  9. Dean's A3
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    Dean's A3 TDI S3 Hybrid

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    [Nov 28, 2010]
    Afaik you cannot push the fuel cap to open it so it has to be the flap. Depending on if he's desperate to refuel, he can choose to pull the tab or wait for it to defrost. Hot water is a good idea but solenoid is mounted on an inner skin which means he'll need lots of it.
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  10. NHN
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    [Nov 28, 2010]
    He seems to be confused as to which is which, but yeah I'd agree it would seem he has got issues with the FLAP, maybe he can clarify this so we're not at cross hairs.

    He could always pee on it, depending on his previous evening it may also help fuel the car :p but I reiterate, if its frozen stuck, be very careful with the plastic release piece, as its not that strong trust me, as had that area of several 8P's many times.
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  11. paddy
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    paddy Audi=No fault code, no idea

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    [Nov 28, 2010]
    I found when my fuel cap got stuck it saved me nearly £50 a week. I have now permanently disabled it with vagcom.
    HTH :)
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  12. klik
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    klik Member

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    [Nov 28, 2010]
    Hi Paddy,

    Could you please tell me how you disabled? I have the opposite, never locks. Dealer has changed the motor, canbus and convenience modeule but nothing. Fortunately all under warranty.
    Perhps I can enable it as per your instructions.
    thnx in advance
    klik

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  13. mike foster
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    mike foster Fossie VCDS Map User

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    [Nov 28, 2010]
    Klik - I think Paddy was making a joke !

    What he means is - because his petrol cap was stuck, he couldn't put any fuel in, thereby saving himself £50 a week ! :thumbsup:

    The Vagcom comment is also a joke ( I think !!!!!! ) :wacko:
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  14. klik
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    klik Member

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    [Nov 28, 2010]
    Thanks Mike,

    I was misled by the vagcom thing. LOL
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  15. paddy
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    paddy Audi=No fault code, no idea

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    [Nov 28, 2010]
    Sorry Klik ;)
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  16. NHN
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    [Nov 28, 2010]
    lmfao thats classic paddy, lmfao.
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  17. NHN
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    [Nov 28, 2010]
    Get the dealer to check the wiring, it a reverse polarity circuit iirc, a simple multimeter test on the feed wires as its a pulse signal, so if it isnt getting a pulse when locking/unlocking on either wire, then they need to work backwards to the point of each wire connection, it should just go back to the conv module tbh so cant see there issue in finding the fault.
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  18. klik
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    klik Member

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    [Nov 28, 2010]
    Thnx NHN,

    Through dealers VAS, the cap was locked but when we tried with my remote key it stayed locked so we had to unlock it through VAS again.
    They have ordered the drivers window module saying that some signal wires pass from there.
    I will let you know how it will go.

    cheers
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  19. PilotAudi
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    PilotAudi New Member

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    [Nov 28, 2010]
    Our Loaner A3 SB will not shut... any ideas? It is minus 3.5 degrees here at moment!!
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  20. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Nov 28, 2010]
    The conv module locks the pin across, the signal from the remote is sent to the conv module not the door module & then the conv module signals the door modules to lock or unlock, now if you used the key its a different story as it has loads of microswitches inside to signal the door module, but its just a signal from drivers door to the conv module which then signals the passengers & also tells the rest of the car modules that are interconnected that the drivers door is also locked or unlocked.

    ATM I find it hard to believe the door module is to blame cause the rest of the car locks if I read right, but knowing modules, they can act very stupidly sometimes.
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  21. RU55SSO
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    RU55SSO Member

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    [Nov 28, 2010]
    sorry guys. its the flap not the inner fuel cap. Seems okay when the weater is not so cold. but at night and first thing in the morning it wont budge
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