Keyless entry/go lost

Discussion in 'Electronics' started by Preston-m3, Jan 22, 2017.

  1. Preston-m3

    Preston-m3 Hardcore MB Enthusiast

    Messages:
    230
    Joined:
    May 26, 2010
    Location:
    Preston
    Car:
    SL55 AMG. BLACK.
    Hi, my SL55 has keyless entry and go but it doesn't work. What's it likely to be? Is it simple to re code to the car if so what does it cost?
    Thanks
     
  2. Lyserman

    Lyserman Hardcore MB Enthusiast

    Messages:
    582
    Joined:
    Apr 17, 2013
    Location:
    Taunton
    Car:
    Shanks's Pony (for now)
    There are sensors in each door, the boot and the centre console.
    It will be highly unlikely that all will have died at the same time.
    Do you have two keys or just one?

    Getting in on STAR will tell you the fault as it shows any working keys in range.

    If the key has died and you have the later keyless go then expect to pay £300 for a new one.
    If you have the early keyless go (plastic key) then new keys are no longer available.
     
  3. OP
    OP
    Preston-m3

    Preston-m3 Hardcore MB Enthusiast

    Messages:
    230
    Joined:
    May 26, 2010
    Location:
    Preston
    Car:
    SL55 AMG. BLACK.
    Keyless go

    Ok thanks. I have the earlier keys. If they are not available what will need to be done to get it working again?
    Thanks
     
  4. OP
    OP
    Preston-m3

    Preston-m3 Hardcore MB Enthusiast

    Messages:
    230
    Joined:
    May 26, 2010
    Location:
    Preston
    Car:
    SL55 AMG. BLACK.
    Keyless

    Also, I have 2 keys and it doesn't work with either?
     
  5. c63chris

    c63chris Hardcore MB Enthusiast

    Messages:
    1,279
    Joined:
    Mar 14, 2012
    Location:
    Sussex
    Car:
    SL63 + BMW 335d Touring
    If the convenience battery is low then the car switches off things like keyless go. Won't do any harm to charge that and try again. Also is it enabled in the vehicle settings as you can switch off there.


    Sent from my iPhone using Tapatalk
     

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