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Coding to turn on rear lights with front daytime running lights

Discussion in 'Audi S4/A4/A4 Cab (B8 Chassis)' started by TreborA4, Apr 2, 2010.

  1. TreborA4
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    TreborA4 Active Member

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    I have read about this somewhere on the forum a while ago but despite searching I can't find the thread.

    I took my car, new in January this year, A4 S-Line Avant, to my local dealer this week to get them to turn the rear lights on at the same time as the front LED DRLs. They could not code it to get this to work.

    What is the code for this, please?

    I will then go back to dealer with this information.

    I think just having front LEDs as DRLs was a mistake by Audi.

    BMWs and Volvos rightly have both front and rear lights on, IMHO.

    I would appreciate your help.

    Thanks.
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  2. Necroscope
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    Necroscope Member

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    I would be interested in this as well, and i totally agree that if the front LED's are on then the back should be on to. If the sun is low and bright and i know i am driving just on Auto DRL's i delibratly turn the headlights fully on.
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  3. pns2007
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    pns2007 Member

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    You need to activate the Scandanavian settings for the lights, its very easy to do using a VDS lead. Look up a member in the VDS section and throw them a few beer tokens. I'd do it for you but I think your too far away. if you fancy a drive tho? PM me if interested, I'm in the Midlands

    Neil

    (A hex can lead is needed on an A4)
    Last edited: Apr 2, 2010
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  4. Trev241
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    Trev241 Member

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    Would have thought it was the same as the S4, turn on side lights and you have front DRL's and rear lights.
    What do you have on the S Line when you turn sidelights on ?
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  5. pns2007
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    pns2007 Member

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    The LED's act as side lights when in the 'sidelight position' on the light switch but they are not as bright as the DRL's. You can override this with VDS (and alter light intensity of the LED's) but you loose the auto dimming function when you indicate.
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  6. TreborA4
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    TreborA4 Active Member

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    Trev,
    Turning on the side lights also puts the rear lights on but the front LEDs go dimmer (sidelight mode rather than DRL mode). I want to have the rear lights coming on automatically as well as the front DRLs (bright) at the same time.

    Trebor
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  7. Trev241
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    Trev241 Member

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    Must admit I had not noticed the dimming down function, is it a big deal after all if the light is poor surely it's time to have the lot on.
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  8. scoTTy
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    scoTTy Active Member

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    I did it when I got my car. It's very quick and easy if you have VCDS.
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  9. DavidB8
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    DavidB8 New Member

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    I thought this was listed in VCDS:

    Tailights active as DRL's
    [09 – Cent. Elect.]
    [Coding - 07] -> [Long Coding Helper] -> Byte 2: Bit 7 - (1 = active)

    LEDs remain at full brightness with parking lights
    [09 – Cent. Elect.]
    [Coding - 07] -> [Long Coding Helper] -> Byte 3: Bit 2 - (1 = active)
    #9

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