Z3 alarm fob not working

Discussion in 'MB Defectors to Other Marques Forum' started by gina2201, Sep 12, 2008.

  1. gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    Not sure whether to post this here or not, however, seeing as you are very nice bunch of people, and very knowledgable too, I thought I would. Please tell me off if it's not allowed (especially as it's BMW).

    My Z3 has an alarm fob but the battery was dead and I replaced it today. The red light is constantly on and it does not unlock the car with the buttons. Does the fob have to be reprogrammed or reset?:( :confused:

    Thanks.

    PS. I have posted this on a BMW forum however the replies do not seem to be as forthcoming or as quick as here!
     
  2. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Is it one of those BMW's where the key and alarm are on one key, the battery in the key is charged through the ignition (it was on mine) and was on the E39 5 series. It might be that the recharable battery has given up.

    Do you have a spare key? Try that, it will have been used less, and therefore the rechargable battery will be intact I hope. You can order a key @ stealers too ;) and code it yourself by doing a procedure, that I can explain if need be.
     
  3. Ted

    Ted MB Club Veteran

    Messages:
    5,595
    Joined:
    Feb 26, 2004
    Location:
    Bourton on Dunsmore
    Car:
    SLC 250D AMG Line, Yamaha XVS 1100, Jeep Renegade
    I would guess that one of the buttons is stuck on (this may have flattenned the battery in the first place)
    Look at the infra-red led through your mobile phone camera. If this is permanenty lit it would suggest the button is stuck.
     
  4. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    It might be a different system to the X5 but there was never a visible LED on my keys. There is a big round red one on the centre mirror that flashes if the alarm is set. Of course you can lock the car manually but this won't activate the alarm system.
     
  5. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    Hi, it is a separate alarm fob to the key, the key has a button but this is just a light to enable you to not scratch the car!
     
  6. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Oh good lord, I can't help you there as I've coded BMW keys before.

    Is it an aftermarket alarm or a BMW unit?
     
  7. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    It is a BMW unit. Thanks.
     
  8. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Does the spare have a fob to operate the alarm?
     
  9. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    I haven't got the spare - yet. In the post!
     
  10. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Okay, when it arrives try this process - it helped me programme a new key.
     
  11. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    The buttons do not seem to be stuck, took the little unit apart and you can press the buttons and they depress freely. (if that makes sense)
     
  12. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Did you put the battery in the right way....
     
  13. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    Yep, the light would not light up otherwise.
     
  14. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    Ah bugger, its an easier solution than following the coding one, which may not be right for your model of car.
     
  15. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    Ok, no worries! Just thought I'd ask here too, have had NO replies or help on the BM forum, but have here! Maybe this forum should diverse into Mercedes and BMW....:rolleyes: :D
     
  16. st4

    st4 Banned

    Messages:
    14,374
    Joined:
    Mar 1, 2008
    Location:
    In the driving seat
    Car:
    C220cdi tourer
    We've had a lot of BMW threads the past few days, mainly involving estate cars. I put my 2p in too but lets get MB orientated. We've got enough issues with rusty wheel arches without blown turbos joining in (its a BMW thing).
     
  17. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

    Messages:
    2,792
    Joined:
    Feb 2, 2007
    Location:
    Cornwall
    Car:
    Audi A4 Quattro Avant S-Line
    I was only joking, I didn't want to clog up this fine forum with BM issues and sunsequently joined a BM forum thinking it might be just as helpful and nice to be on as this one, don't get me wrong, people are friendly and seem to love their 3 series' but seem to have a lacking of other models!

    No probs, cheers anyway, stick to what you know and do best!;) :cool:
     
  18. Dieselman

    Dieselman Banned

    Messages:
    34,206
    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    The only decent link I can find is
    http://www.usedcarmart.co.uk/forum/showthread.php?p=62277

    But you say the LED is permanently lit. That smacks of a stuck down button. Although you can press them do they 'click' when pressed.

    If this is a radio fob (which it sounds like it is) try holding it near a portable radio or even some computer speakers and press the buttons. It should create some kind of interference, similar to a mobile phone.

    If it's an LED fob use the camera trick.
     
  19. MikeL

    MikeL Hardcore MB Enthusiast

    Messages:
    646
    Joined:
    Sep 9, 2004
    Location:
    Torquay
    Car:
    Audi A4 3.0 TDI
    Dismantle the fob and look for a short circuit - maybe due to water ingress causing corrosion.

    When all else fails clean everything with meths.

    Mike

    ps BMW threads are fine by me!
     
  20. bigstuff

    bigstuff Hardcore MB Enthusiast

    Messages:
    299
    Joined:
    Aug 24, 2008
    just dont lock it who would steal it :eek:
     
Tags:

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.