Opening the trunk with a kick under the trunk can be very handy especially when your hands are full. Originally, Audi released this for the USA marketet mostly but the sensors on 2012 models weren’t working properly or at all as a matter of fact. They’ve stopped offering them in 2013 and then in 2014 started offering the feature again with better, improved module. Make sure, when retrofitting this to get your parts from a 2014 cars or you will fit a ridiculously bad working motion sensor. Note, that this will work only if you already have power-opening of your trunk working.

Parts Required

Here are the parts you need plus a cable from your motion sensor module to the comfort module in the back of the car.

In addition to the big parts, if you’ve purchased less than a full kit, you will need some clipping 4E0971847 and bolts N10415903. For the cables, you may need:

  • 4E0971847  14pcs
  • 4H0973704
  • 000979034E  2pcs
  • 000979009E

Wiring and Assembly

Both are very simple since if you have all the necessary parts, you will see where the module and antenas should go. Wiring is a bit harder if you’re doing it yourself, but with ETKA you should have no problems.


There’s no coding, the system should work with unlocked trunk 🙂

This Post Has 31 Comments

  1. Duncan

    Hi, when you say power opening of the trunk, do you mean it needs to have the motorized trunk system, or just able to open the trunk with the button on your key remote?

    1. Audi A6 Retrofit

      If you can open the trunk with a remote, you should be good.

  2. Daniel

    Hi, if I have trailer hitch it will be fit ?

    1. Audi A6 Retrofit

      Yes, I think so 🙂

  3. Jacek

    hello, do You have maybe wiring diagram for A6 c7 4g Avant ’13 for electric trunk? thx

    1. Audi A6 Retrofit

      Sorry, I have the electric trunk factory-fitted so I haven’t researched it. I know it’s kinda difficult mod though since a lot of stuff has to be replaced.

  4. Alex

    Hello, is posible to specify the exact position for the 2 sensors? One sensor will be on top where the diffuser is clamped on the bumber but the second one will be near the bolts (the ones that lock the bumper in place)?

    1. Audi A6 Retrofit

      Check out the schematic for installation, they have places to fit and you can mess them up!

  5. Jacek

    hello, unit 3AA962243 without sign “D” at the end will be ok?

    1. Audi A6 Retrofit

      Should do. However, note that units after 2014 work much better than older models.

  6. Jacek

    on more question…it will be working in car without keyless unlocking option ?

    1. Audi A6 Retrofit

      Yes, it works, you already have the antenna in the truck, mine is KESSY and works as a charm.

      1. Andrea

        HI, don’t work for me. I have a6 restyling 2015. have vag coding?

  7. Radoslav

    Do you think this will work on Allroad, because there the diffuser is alluminium?

    1. Audi A6 Retrofit

      Sensors are under the diffuser, I think it should work.

  8. Andrei

    Do you know where is the location of the comfort module?
    I have the sensor module, the sensors and the wiring loom for the comfort module and i am not sure it is located.

    1. Audi A6 Retrofit

      Back in the trunk to the right.

  9. Honza

    Hi, I want retrofit this gadget to my car. I mount antennas and control module inside my bumper and wires are inside the car. I do everything as you are writing but system do nothing :/ (brown connect to ground, yelow/violet to BCM and red/yellow to + by fuse 5A. Thank you for reply

    1. Audi A6 Retrofit

      Do you have full kessy?

  10. Rafal

    I have installed this system on Audi allroad 2014. Coding was necessary to make it work

    1. Alex

      Can you help me please what did you modify in coding?
      Thank you

    2. Szymon

      Can you explain how you mount sensors? I read this retrofit is not possible with allroad becouse of lower cover metal bumper.

    3. Ogi

      How did you put the sensor under the metal bumper? Is is working fine?

  11. Honza

    Yes, full kessy (doors, start stop engine and trunk). I coded it by vcds but if I save changes and switch off ignition coding dissapear and show info before coding.

  12. phil

    hi will this work with out keyless doors please

  13. Andrei

    Hi Honza, How did you code this feature? I cannot find anything on the web for activating this sensor

  14. Philip

    Hi i have the motorised trunk just confused here can I use this with or with out keyless entry please

  15. Andrew

    Hello. Just bought full set to my A7.
    Where exactly must be pinned LIN wire? To BCM2? Or to trunk lid control module?


  16. David

    HEllo, witch exact connector for LIN bus in J393 module please? there are 3 connectors. thanks

  17. Jarek

    Można prosić jakie bedzie kodowanie tego ?

  18. Jarek

    What is the coding of this sensor?

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.