Vertical Acceleration Sensor

Discussion in 'F80 M3 Saloon / F82 M4 Coupe / F83 M4 Convertible (2014-2020)' started by karyog, Nov 23, 2020.

  1. 23 Nov 2020 at 5:29 PM #1
    karyog

    karyog Wearing official crakows

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    Hi guys

    So I need to get this sensor replaced so I was wondering after fitting does need to be electronically calibrated?

    Got the chassis malfunction and EDC doesn't work and from reading this sensor is the culprit.

    Any help appreciated.

    Thanks
     
  2. 23 Nov 2020 at 9:41 PM #2
    glynharper

    glynharper Underwear thermally upgraded

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    Yes a static calibration has to take place once the unit is changed.
    Doesn’t take long to change but I think the box and cable are about £150 or something.
    My drivers side one went about 6 months ago.
     
  3. 24 Nov 2020 at 9:29 AM #3
    karyog

    karyog Wearing official crakows

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    What's needed for the static calibration? any special tools? Reason I ask is because I am going to attempt replacing this sensor myself as it doesn't look hard.
     
  4. 24 Nov 2020 at 10:29 AM #4
    adie

    adie Standard amice donned

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    Service function/start-up VDC using ISTA/X
     
  5. 24 Nov 2020 at 10:53 AM #5
    karyog

    karyog Wearing official crakows

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    Cheers.

    I assume this function isn't possible using bimmercode/bimmerlink?
     
  6. 24 Nov 2020 at 10:58 AM #6
    adie

    adie Standard amice donned

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    Unlikely i think, but can't confirm 100%
     
  7. 24 Nov 2020 at 11:04 AM #7
    cossie1

    cossie1 Flexing a golden cincture

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    Sounds like spun crank hub to me mate :muttley:
     
  8. 24 Nov 2020 at 11:15 AM #8
    karyog

    karyog Wearing official crakows

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    Russ help me out !
     
  9. 24 Nov 2020 at 11:56 AM #9
    glynharper

    glynharper Underwear thermally upgraded

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    Yeah it doesn’t need any tools, it’s just a case of using Ista to tell the car to calibrate. It then assumes the car is flat and not moving, and reads all the sensors so it knows what the base readings are.
    You wouldn’t do this in bimmercode.
    It’s a really quick thing though so a dealer may just pop it on for you for a pack of biscuits or something!
     
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  10. 11 Jan 2021 at 12:25 PM #10
    steve77

    steve77 A mere Chipper

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    @karyog did you get this sorted? I've just replaced my acceleration sensor and cable but it hasn't resolved my error codes ?
     
  11. 11 Jan 2021 at 9:32 PM #11
    karyog

    karyog Wearing official crakows

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    Yep resolved. Had a small issue once I fitted the sensor I had another code come up.

    482A22 but disconnected the Edc wire at the top of the strut and reconnecting has now completely resolved the issue and no faults are present.
     
  12. 11 Jan 2021 at 9:43 PM #12
    steve77

    steve77 A mere Chipper

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    Hi did you perform the re-calibration yourself? - that is the bit I need to do now I think.
     
  13. 11 Jan 2021 at 9:59 PM #13
    glynharper

    glynharper Underwear thermally upgraded

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    It has to be done with Ista on a flat surface so the car knows it's level position.
     
  14. 11 Jan 2021 at 10:02 PM #14
    steve77

    steve77 A mere Chipper

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    Hi I have ISTA but not really used it before - is it straight forward to do? Any guides/steps on doing this?
     
  15. 11 Jan 2021 at 11:22 PM #15
    Alol

    Alol On the path

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    Reading all these comments on 6 year old maximum age cars with all the issues that seem to crop up a warranty extension is definitely something not to be taken out.....
     
  16. 14 Jan 2021 at 5:31 PM #16
    karyog

    karyog Wearing official crakows

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    Didn't need to do the recalibration. As soon as the sensor was plugged in I cleared the codes with ISTA and it went .
     
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  17. 14 Jan 2021 at 5:34 PM #17
    cossie1

    cossie1 Flexing a golden cincture

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    If you didn't recalibrate you risk spinning the crank hub :muttley:
     
  18. 14 Jan 2021 at 10:59 PM #18
    glynharper

    glynharper Underwear thermally upgraded

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    That’s handy then. My dealer told me it had to be reset. :) maybe because mine had totally failed or something.
     
  19. 15 Jan 2021 at 8:37 PM #19
    karyog

    karyog Wearing official crakows

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    It only has to be recalibrated if the error doesn't go away but usually the car just calibrates itself.
     

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