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ALARM IS VERY VERY QUIET

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by Neilb1, May 7, 2013.

  1. Neilb1
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    Neilb1 Member

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    [May 7, 2013]
    Noticed i sent the alarm of today, and to my surprise there was the quietest little beeping at the back of the car. I expected the horn or something but this noise would not alert anyone but Dogs at it is that quite,

    Can anyone help me out here
    Last edited by a moderator: May 8, 2013
    #1
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  3. Greeny233
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    Greeny233 Active Member

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    [May 7, 2013]
    Yep mines the same. Think that's how they are. If you let it keep going it does get annoying but that's about it.
    #2
  4. krisavant
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    krisavant 4th set of a wheels in a year

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  5. Audi Doodah
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    Audi Doodah Active Member

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    [May 7, 2013]
    Aye, feeble indeed but it only needs to put doubt into a theives mind to make them not hang around!
    #4
  6. BRILLO
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    BRILLO Member

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    [May 7, 2013]
    Same here. Certainly wouldn't wake me up.
    #5
  7. PetrolDave
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    PetrolDave Well-Known Member

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    [May 8, 2013]
    That's how they are - I don't know how Audi are allowed to call it an alarm.

    When my previous A4 TDi got broken into on the drive the alarm was so quiet we thought it was my phone beeping upstairs!
    #6
  8. Neilb1
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    Neilb1 Member

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    [May 8, 2013]
    can it not be linked to the horn ?
    #7
  9. Az
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    Az Hard slammed!

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    [May 8, 2013]
    Doesn't the siren have its own battery? Would that be the cause of the battery never being replaced?
    #8
  10. dualmono21
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    dualmono21 Well-Known Member

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    [May 8, 2013]
    mine actually sounds louder inside the vehicle than it does outside
    im not 100 per cent but someone once said they had fitted the siren on the inside of the vehicle not the outside
    #9
  11. AlexGSi2000
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    AlexGSi2000 Well-Known Member VCDS Map User

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    [May 9, 2013]
    Yep, its just the way they are im afraid.

    I have often thought about taking the alarm apart & wiring in a relay to an additional alarm siren - it hasn't materialized as of yet!
    #10
  12. Neilb1
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    Neilb1 Member

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    [May 9, 2013]
    surely it can be linked to the horn as my horn sounds like a dam freight train
    #11
  13. Az
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    Az Hard slammed!

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    [May 10, 2013]
    Im sure there is an option on VCDS that you can unlock to sound the horn when the alarm is triggered.....
    #12
  14. Mike.M
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    Mike.M Well-Known Member

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    [May 10, 2013]
    Dont recall seeing one but always though it could be improved.
    #13
  15. AlexGSi2000
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    AlexGSi2000 Well-Known Member VCDS Map User

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    [May 10, 2013]
    I have VCDS but never seen the option! .... may take another look.

    [h=2]Coding[/h]
    • +00001 = GB-Alarm (not USA)
    • +00002 = Confirmation Anti-Theft Warning System (Blink)
    • +00004 = Selective Central Locking (SCL)
    • +00008 = Anti-Theft Warning System
    • +00016 = Rear Lid Release Locking at 5 km/h
    • +00032 = Central Locking at 15 km/h (or 10 mph)
    • +00064 = Comfort Function via Remote Control (not USA)
    • +00128 = Right Hand Drive (RHD)
    • +00256 = Avant
    • +00512 = Confirmation Close via Remote (1x Blink)
    • +01024 = Confirmation Anti-Theft Warning System Horn Activation
    • +02048 = Door-/Window Regulator Logic
    • +04096 = Thatcham Anti-Theft Warning (not USA)
    • +08192 = No Safe-Function
    • +16384 = Side Windows with Insulated Glass

    Could possiby be +1024....?
    #14
  16. Furkz
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    Furkz Active Member

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    [May 10, 2013]
    i had this on the 80 cabriolet. when i locked the car a short sharp horn noise would alarm. got embarrassing coming home late night and alerting the mrs when i got in, so changed a few digits on a code on vag-com to get rid of it
    #15
  17. Audi Doodah
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    Audi Doodah Active Member

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    [May 10, 2013]
    This just gives a single beep of the ALARM horn, not the car horn. Have it coded on mine.
    #16
  18. zackeswede
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    zackeswede New Member

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    [Jun 13, 2013]
    Hi everyone. First post for me here but a frequent visitor.
    Just thought that i should share with you all how i solved the problem with the horribly weak alarm siren on the B7.
    Just bought myself a second OEM siren and placed it in the engine compartment. Then ran a wire from the stock siren in the back to the new one. Hooked it up to the + and - on the battery.
    The difference is like night and day.
    Uploaded a before and after video on the tube so you can hear the difference.
    Before: A4 b7 siren orginal - YouTube
    After: A4 B7 siren - YouTube
    #17

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