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What will happen if I disconnect my battery?

Discussion in 'A4/S4 forum(B5 Chassis)' started by abimogen, Feb 20, 2011.

  1. abimogen
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    abimogen New Member

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    [Feb 20, 2011]
    Bit of a silly question I know, but what will happen?
    I've just got the car and dont have a radio code or anything. Bit worried about the throttle body re-adapting correctly. Should I be concerned about anything else?

    Thanks
    #1
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  3. neilA4
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    neilA4 Member

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    [Feb 20, 2011]
    you will have to put code in for the radio, think you can disable the code with vagcom before disconecting battery. Nothing else to worry about.
    #2
  4. abimogen
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    abimogen New Member

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    [Feb 20, 2011]
    Thanks.

    I have Vagcom lite, can I do it through that?
    Sorry, also forgot to say its a 98 1.8 n/a 20v, if that makes a difference.
    #3
  5. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Feb 20, 2011]
    it wont start ?
    #4
  6. abimogen
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    abimogen New Member

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    [Feb 20, 2011]
    Yeah, ok. Left myself open for that one!!
    #5
  7. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Feb 20, 2011]
    if you have remote keys you will have to match them back to work
    your 1 touch windows will need resetting
    radio maybe maybe not
    clock date etc resetting
    think thats about it
    why do u need to disconnect battery
    #6
  8. abimogen
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    abimogen New Member

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    [Feb 20, 2011]
    How do I re-match the keys (actually only have one) and the windows?
    I just want to make sure the drain holes underneath it are clear.

    Thanks
    #7
  9. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Feb 20, 2011]
    for the windows you press and hold down till open and still hold for a few secs
    then the same close them keep hold for a few secs

    if you have remoce central locking put key in ignition turn on press lock unlock
    turn off shut door lock with button
    #8
  10. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Feb 20, 2011]
    quick way to check look if no puddle of water should be ok
    or pour bucket of water in and watch under car if it drains its ok
    #9
  11. neilA4
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    neilA4 Member

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    [Feb 20, 2011]
    can't find the radio coding options now, may have been a different radio! will keep looking.......
    #10
  12. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Feb 20, 2011]
    Ive had my battery off a few times and the only thing I had to do after was reset the one touch windows.

    Radio just said LEARN then started working, remote fobs were fine etc.
    #11
  13. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Feb 20, 2011]
    Ive had my battery off a few times and the only thing I had to do after was reset the one touch windows.

    Radio just said LEARN then started working, remote fobs were fine etc.
    #12
  14. abimogen
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    abimogen New Member

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    [Feb 20, 2011]
    All done. No probs at all, radio just came on as normal, didnt actually try windows, remote fine and throttle body made a squealing sound for about 10secs.
    Drain hole blocked solid, tray full of water! I thought hole was a grommet for a second.

    Thanks to everyone for their input!
    #13
  15. phoenixv6quattro
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    phoenixv6quattro staylowmovefast

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    [Feb 20, 2011]
    "What will happen if I disconnect my battery?"

    The World will end....
    #14

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