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Anyone replaced the battery in their B9 key?

NickGun Jan 25, 2018

  1. NickGun

    NickGun Active Member Team V6 TDi Audi A4 Audi Avant Owner Group quattro S tronic

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    As per title just wondering if any other B9 owners have had to replace their key battery yet?

    Our main use key is suddenly and constantly pinging up that battery needs replacing on the DIS and wanted to find out if it's a dealer only option or can I get a 3rd party company to do it? Or even better something I can easily sort myself?
     
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  3. 007dan91

    007dan91 Member

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    It should be straight forward for you to do yourself. Video below shows how to remove it.

     
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  4. ahm

    ahm Member

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    Yes, really simple, did it last week. CR 2032 battery, as per the video above, done!
     
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  5. NickGun

    NickGun Active Member Team V6 TDi Audi A4 Audi Avant Owner Group quattro S tronic

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    Awesome, thanks - couldn't face another trip to dealers as was only serviced 2 weeks ago and predictably key wasn't showing battery replacement then.
     
  6. 007dan91

    007dan91 Member

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    How long has your battery lasted? I’ve had my car for near enough a year now and for now the key is still going.
     
  7. NickGun

    NickGun Active Member Team V6 TDi Audi A4 Audi Avant Owner Group quattro S tronic

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    We've had our B9 for just over 20months, think 18months or so is average for battery to last.

    Our other key shouldn't need its battery replacing as I had the misfortune of losing one and had to order one from Audi in November (expensive too - ouch) hence why both sets now sport those Tile trackers.
     
  8. RaZ A4

    RaZ A4 RaZ A4 Team Mythos TFSI Owners Group Audi A4 Manual

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    Main key battery lasted 17 months and did it myself bought two Panasonic batteries for £3. Still waiting on spare key telling me to replace battery.
     
  9. BigAardvaark

    BigAardvaark Active Member Team Scuba Audi A4

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    My spare's in an RFID pouch in a drawer and rarely gets used so I just swapped that one at the same time my main key flashed up as needing doing. Never know when you might need it and Murphy's Law states that that spare battery you kept to one side is now impossible to find :yes:
     
  10. 007dan91

    007dan91 Member

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    so I have around 6 months left with mine, don't need to worry yet :)
     

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