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A7 C7 pre FL HBA retrofits

Screw90 Apr 29, 2019

  1. Screw90

    Screw90 Member

    Evening Lords of the Rings!

    Following my successful very long list of retrofits on my previous c6 I started to collect some parts for my a7.

    I have ran extended cans to HBA mirror yesterday and surprisingly didn’t get it to work.
    I have retrofitted rear view mirror soul black 4F0857511K 4PK and had successful communication with unit via vcds. Unfortunately it keeps throwing ACC communication issue and I believe is down to 4F0 HBA mirror as is from previous generation.
    My mate has similar A7 with factory fitted HBA option however WITHOUT rear view mirror camera (CMOS). The main difference is that he has adaptive lights (non LED) and night vision.
    I have tried coding 8E and 85 + central electrics without any success as yet.
    I was told by polish fellas that I might need newer hba mirror 8K0857511E. I would be happy if anyone know how to get it to work without mirror. I have extended can,
    Acc, lane assist etc so j851
    And j852 should be able to handle it from triangle camera in windshield.
    Any thoughts?

    Sent from my iPhone using Tapatalk
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  3. NHN

    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

    Do you have acc?
  4. Screw90

    Screw90 Member

    Yes, I am only missing side assist but have ALA, ACC, brake guard, pre-sens etc

    Sent from my iPhone using Tapatalk
  5. Screw90

    Screw90 Member

    More to that I have 8E and 85 modules (camera in windshield and image processing) in the car. These are exactly same as from my mates a7 who has HBA without mirror.
    As mentioned he has night vision and adaptive lights ( bi xenon, no LEDs). Other than that same spec.

    Sent from my iPhone using Tapatalk
  6. sarkimi

    sarkimi New Member

    Hi, did you made any progress with the HBA. I am trying to retrofit it also, but the only clue which I have found was made on SKODAs, where the guys have activated the HBA in Module A5. But this modul is not present in in my car (A6 C7). I have just 8E and 85 moduls. I would appropriate any help, thanks.

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