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Audi A4 Soft Top problem

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by Evans94, Oct 7, 2012.

  1. Evans94
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    Evans94 New Member

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    [Oct 7, 2012]
    Hi there,

    Just bought a A4 3.0 TDI quattro on a 57 plate and the roof would not close earlier today.

    When I tested the car everything worked fine, i bought it private so can't go back.....

    There was no warning signs, and I checked the fuse to be ok. I manually open the roof but found it a struggle to close on my own so put it back in. I tried to close the roof again it worked ok?

    Do you think this could have been a one off and does anyone have any experience with soft tops not closing?

    Thanks and look forward to hearing from you
    #1
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  3. Illusion-Paul
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    Illusion-Paul Member

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    [Oct 8, 2012]
    I had the same thing with mine, same car too.

    It was the soft top position sensor, now works perfectly. Do you have vcds? where are you located?
    #2
  4. Evans94
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    Evans94 New Member

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    [Oct 8, 2012]
    Thanks for reply.

    What is VCDS and I live in Gloucester
    #3
  5. Illusion-Paul
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    Illusion-Paul Member

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    [Oct 11, 2012]
    VCDS is the audi/vw diagnostic program that will find all the fault codes.

    From there you can find any issues and parts to fix. I was down in Worcester last weekend and i have VCDS. You just need someone to scan your car to find out.
    #4
  6. bez101
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    bez101 Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Oct 11, 2012]
    they sometimes go out of sync
    so by opening and closeing with the tool in the dash resets the roof
    i wouldnt worry if its working
    #5
  7. g12
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    g12 Member

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    [Oct 14, 2012]
    I doubt it'd be a sensor. Its happened to mine before - would open fine, but then wouldnt close, or would open only to unlock the top and not move any further.

    I fixed this by resetting it via VAGCOM (restore defaults), then to readapt its settings by opening/closing the hood manually 3 times (procedures on the forums somewhere).

    I'd do that before changing any sensors!
    #6
  8. VagPro
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    VagPro Active Member

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    [Oct 16, 2012]
    Get the codes read using vagcom, if there are no codes after resetting chances are its the brushes in the motor sticking. Ive wrote a guide on how to solve this

    http://www.audi-sport.net/vb/audi-s...et-soft-top-roof-hood-motor-repair-guide.html
    #7
  9. VagPro
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    VagPro Active Member

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    [Oct 16, 2012]
    Hi, this is caused by the brushes in the motor sticking in their carriers and causing arcing with the commutator, this leads to poor contact. I've just posted a link to a guide how to solve this
    #8
  10. g12
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    g12 Member

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    [Oct 20, 2012]
    Cheers@VagPro

    I read your guide when I had problems with mine (3 months back). I didn't think it was this as my car had only done 15K miles which is why I did what I did and thankfully its been working since.
    #9
  11. Evans94
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    Evans94 New Member

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    [Mar 9, 2013]
    Poentiometer was replaced today. All good.
    #10

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