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Gearbox Issue

danny104 Nov 10, 2018

  1. danny104

    danny104 Member

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    All, I’m after some advice please. I have just had to have a 2nd hand gear box added to my a6 avant 2010 c6. Everything went well but now have the following issue-

    The gear change selector on the LED display work as it should do for 1st - 3rd gear but as soon as I go to 4th it goes blank 4th and 5th gear is also the same but when in 6th gear it says I’m in 5th and need to change to 6th.

    The second issue I have is cruise control works up to 3rd gear but then drops when go to 4th gear and can’t re enabke it whilst in 4th - 6th gear.

    There aren’t any loose wires, I’ve reset the systems by disconnecting battery for 10 minutes but still have this issue.

    Has anybody every had this when changed a gearbox and if so how did you fix the issue?

    Many thanks for you help in advance.
     
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  3. danny104

    danny104 Member

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    update ——

    The gear change selector on the LED display works as it should do for 1st - 3rd gear but as soon as I go to 4th it goes blank within a second and the same for 5th gear but when in 6th gear it says I’m in 5th and need to change to 6th. When it goes from the led screen the cruise controls cuts out and I can’t activate again. When I’m 6th gear it will start working again.

    If I am quick enough I can activate cruise control in 4th and 5th but as soon as the display goes cruise control drops.

    There aren’t any loose wires, I’ve reset the systems by disconnecting battery for 10 minutes but still have this issue.

    Has anybody every had this when changed a gearbox and if so how did you fix the issue?

    The same code gearbox was used when changed over.

    Many thanks for you help in advance.
     
  4. Roadrunner146

    Roadrunner146 Active Member Team Moonlight TFSI Owners Group Team V6 Supercharged Audi A6 Audi Avant Owner Group quattro S-line owners group

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    Have you tried scanning for error codes.
    You might need to program something with VAGCOM.
     
  5. danny104

    danny104 Member

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    Yep I’ve got vag com and done this first of all, no error codes were in there. The car is now booked to go into main dealers as nobody knows what it can be.
     

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