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Thread: Hydrogen Reserve Please Refuel

  1. #1
    Join Date
    May 2018
    Location
    Chicago,IL. USA
    Posts
    19
    My Cars
    2006 BMW 750i

    Unhappy Hydrogen Reserve Please Refuel

    Has anyone had an issue after maybe an update with any module you now get "H2 Reserve Please Refuel". I know it's not the fuel sensor because I changed it and I was able to see the sensor working properly under the hidden menu when pressing the mileage reset button. Also, I ran ISTA+ Diagnostic for Kombi ECU, the Fuels Sensors are working properly. To me it seems that maybe the fuel gauge needs to be enabled, some sort of software issue.. I was using NCSEXPERT/NCSDUMMY tried turning off the warning for 'H2 RESERVE' but it continues to come back on. Anyone has any solutions would ISTA/P fix this issue if so what are the steps(I have ISTA+ and ISTA/P working perfectly) ?

  2. #2
    Join Date
    May 2006
    Location
    Encino, CA
    Posts
    399
    My Cars
    08 B7, MB SLK,Marai
    I think you have the honor of being the first Hydrogen related question. (At least as far as I've read.) That being said, are you overall pleased with the car? I recently leased a Marai, and think its great.

  3. #3
    Join Date
    May 2018
    Location
    Chicago,IL. USA
    Posts
    19
    My Cars
    2006 BMW 750i
    Basically I have fixed this issue on the E65 , I just changed Daten Versions. I updated the ECU and now the regular Gas tank shows.

  4. #4
    Join Date
    Aug 2019
    Location
    Houston
    Posts
    6
    My Cars
    Bmw e66
    Do you have the Daten versions that you used? I’m having the same problem right now, when I updated kombi with ncs and when it finished it start saying hydrogen refuel

  5. #5
    Join Date
    Dec 2017
    Location
    Cebu, Philippines
    Posts
    6
    My Cars
    2002 BMW 735i
    had that same problem before when i was updating my kombi using ncs, turns out i used the wrong zb number for my kombi, flashed it to the correct zb number and everything went back to normal

    Sent from my LYA-L29 using Tapatalk

  6. #6
    Join Date
    Aug 2019
    Location
    Houston
    Posts
    6
    My Cars
    Bmw e66
    The ZB number I see is 4115553, does anyone know what ZB number I should use for a 06 bmw 750li?

  7. #7
    Join Date
    Dec 2017
    Location
    Cebu, Philippines
    Posts
    6
    My Cars
    2002 BMW 735i
    I used zb number 9140818

    Sent from my LYA-L29 using Tapatalk

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