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Both key fobs not working

Discussion in 'MK4 (NEW) Toledo' started by Toledo TSI, Mar 15, 2019.

  1. Toledo TSI

    Toledo TSI Full Member

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    One of my car keys stopped working last week and this morning when I took the car for a service the second key stopped working as I got to the garage. I was told it was just a simple battery replacement,
    On picking my car up at dinnertime I was told both fobs need replacing.
    Is this a common problem with Toledo Fobs or is it just my bad luck?
     
  2. camelspyyder

    camelspyyder 2 SEAT-er

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    Not had a SEAT key fail (out of 6 of them) in the last 5 years. Touch wood.

    I would get a second opinion.
     
  3. Toledo TSI

    Toledo TSI Full Member

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    Seat have ordered two new ones for me and the key I am using at the moment is now showing as "Replace your key battery" on the dash.
     
  4. akchappers

    akchappers Senior Member

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    Wow ! Can’t say Iv ever had one fail on And Iv had pretty much every seat going . And own most of em still!
    Seems weird three fail pretty much ...
     
  5. camelspyyder

    camelspyyder 2 SEAT-er

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    Only days later and I had one fail too as I tried to lock the car in a public place 20 miles from home (and the spare key).

    Emergency re-start procedure from the manual worked though.

    Battery change has restored the key.
     
  6. GS16LRHP

    GS16LRHP Full Member

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    I had this same issue last week: I managed to open the car with the key fob but when I tried to start the car I had the message that no key detected. Pressed the buttons on the key fob and LED light wouldn't illuminate. Used the spare key to start the car.
    Changed the battery in the key fob with a new CR2025 battery and it's been fine since. Just seems a but strange that the original battery hasn't lasted that long. I'm not sure if this is normal with cars that have keyless start as I understand that the key fob is always communicating with the car. I've had keyfobs in the past where the battery has lasted for 4 years +
     
  7. Toledo TSI

    Toledo TSI Full Member

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    My car was away for a week at the garage, both fobs were replaced, the car had to be re-programmed and the push button start cable was replaced. The garage said that they had replaced fobs in the past and also that the life span of the batteries is only 2 years on keyless.
     
  8. camelspyyder

    camelspyyder 2 SEAT-er

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    2nd fob battery died now 18 months appears to be what I'm getting from both keys. Changed the battery, and normal operation resumed.
     
    Toledo TSI likes this.
  9. GS16LRHP

    GS16LRHP Full Member

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    That's interesting, must be because of KESSY. I bought 4 CR2025 batteries as they work out cheaper but I also had some CR 2032 batteries which do fit in the key fob but it's a tighter fit as the CR 30232 batteries are thicker (3.2mm thick,vs 2025 at 2.5mm thick) and should last longer. Currently using the 2025, might use a 2032 on the spare fob when that battery dies.
     
  10. Bedlam

    Bedlam Full Member

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    Just be aware that thinner = less capacity

    Dia x Thk (mm)
    Nominal Capacity (mAh)
    CR2012
    20 x 1.2 55
    CR2016 20 x 1.6 90
    CR2025 20 x 2.5 165
    CR2032 20 x 3.2 220
     
  11. camelspyyder

    camelspyyder 2 SEAT-er

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    The 2025 is the factory fit battery. Why use something different?
     
  12. camelspyyder

    camelspyyder 2 SEAT-er

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    @Toledo TSI "My car was away for a week at the garage, both fobs were replaced, the car had to be re-programmed and the push button start cable was replaced. The garage said that they had replaced fobs in the past and also that the life span of the batteries is only 2 years on keyless."

    Since every one else just changed batteries, can you name the dealer please ...so we can all avoid them as they sound less than competent ;)
     
  13. Bedlam

    Bedlam Full Member

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    My point was that you get 33% more capacity using a CR2032 over a CR2025 which, presumably, equates to 33% more/longer battery life
     

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