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Question regarding "Coming home lights" Black Edition

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Avus Sportback, Oct 30, 2011.

  1. Avus Sportback
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    Avus Sportback Member

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    [Oct 30, 2011]
    Guys,

    I have just retrofitted the coming home lights mod to my Sportback Black Edition (Xenon LED DRL's), and all is working fine. Just been driving home in the dark now and realised that my light position switch was set on DRL'S but yet my Xenons were on?

    I didn't think my car had "Auto" lights and I'm sure it's only done this since the mod, previously I'm positive my Xenons wouldn't have come on unless I selected dipped beam on the switch!

    Am I going mad or have they always been automatic?
    #1
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  3. FranA3
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    FranA3 events moderator Regional Rep

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    [Oct 30, 2011]
    i thought all xenon's were auto lights mate lol
    #2
  4. Avus Sportback
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    Avus Sportback Member

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    [Oct 30, 2011]
    I know they are Auto levelling but don't think they are auto on/off.
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  5. Cruiser89
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    Cruiser89 Advanced In Car Tech Site Sponsor

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    [Oct 30, 2011]
    Na... When I ordered my BE I had to pay extra for auto lights and wipers.
    #4
  6. paddy
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    paddy Audi=No fault code, no idea

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    [Oct 30, 2011]
    The clue is on the switch...does it say AUTO as the first position ( mine does)...better still have you got auto wipers and the sensor on the screen behind the interior mirror ?
    #5
  7. Avus Sportback
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    Avus Sportback Member

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    [Oct 31, 2011]
    No, don't have auto lights or wipers.

    Why is the DRL position turning my Xenons on then?
    #6
  8. warren_S5
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    warren_S5 Moderator Staff Member Moderator VCDS Map User

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    [Oct 31, 2011]
    I've just helped someone out whose lights were on even when the switch was turned off.

    First check with VCDS for error codes.

    Secondly, have you had the main light switch apart to do you changes. If so its likely like the bloke I saw it hasn't gone back together properly.

    What did you change to do your retro fit?.
    #7
  9. Ash187
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    Ash187 Audi-Retrofits.co.uk Site Sponsor

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    [Oct 31, 2011]
    normally if the xenons come on when they are 'not meant to' its a fault on the car. could be wiring or coding depending on what you have done to it.
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  10. Avus Sportback
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    Avus Sportback Member

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    [Oct 31, 2011]
    Just fitted the wire into Plug E Pin 12 and earthed it. Then went into VCDS and enabled coming home lights in central electrics Byte 05 and 07.

    Is that correct?

    Link to the mod here cominghomelights - Audi Retrofit
    #9
  11. Ash187
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    Ash187 Audi-Retrofits.co.uk Site Sponsor

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    [Oct 31, 2011]
    does your headlights come on whilst the swtich is in the DRL position in the daylight?
    #10
  12. Avus Sportback
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    Avus Sportback Member

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    [Oct 31, 2011]
    Not sure, will check tomorrow. The wife has had the car all day....

    Will check later for fault codes
    Last edited: Oct 31, 2011
    #11
  13. Avus Sportback
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    Avus Sportback Member

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    [Oct 31, 2011]
    Ok guys, finally sorted it....It appears that with the LED DRL'S you don't have to check Byte 5, only Byte 7

    All working as it should now, thanks anyway :arco:
    #12

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