VAG COM tweaks for the D4 A8
 

I know there have been lists posted before, but here's a list I spent some time putting together. I tested some of the ones intended for other models, as well as playing with the VCDS to check for anything not included. Some options available for other models still show up in the computer, but don't appear to have any effect. Here's what I've found so far, I have tested the functionality of most of these.

Disable After-wipe of windscreen wipers
[09 – Cent. Elect.] [Coding - 07] ->Long Coding Helper -> Byte 1
Bit 3 - Remove check mark (1 = active)
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Disable amber corner lights
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 10
Submodule 0
Bit 3 - Set to 0 to disable amber side markers (U.S. vehicles)
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Disable Key warning
[46 – Central Conv.] [Coding - 07] -> Long Coding Helper -> Byte 9
Bit 7 set to 0 (Uncheck)
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Disable "Lights are on" Warning
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 5
Bit 3 - Set to 0 to disable "lights are on" warning when you open the door.
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Disable NAV & Phone warning messages while entering data at speed
[5F - Information Electr.] -> Adaptation -> Set channel 2 & 3 to 250
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Disable Seatbelt Chime
[17 - Instruments] [Coding - 07] -> Long Coding Helper -> Byte 0
Bit 2-4 – Seat Belt Warning inactive
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Adjust Date display
[17 – Instruments]
[Coding - 07] -> Long Code Helper ->
Byte 7 – Use dropdown to select date format
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Upshift Display
[17 – Instruments]
[Adaption - 10] -> Upshift Display in center panel ->
Use dropdown to activate/deactivate
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Enable Adaptive brake lights
[46 - Comfort System] [Coding - 07] -> Long Coding Helper -> Byte 8
Bit 0 – Emergency Brake Flashing via Turn Lights active (1 = active)
Bit 1 – Emergency Brake Flashing via Brake Lights active (1 = active)
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Enable Double Disarm Beep
[46 - Central Conv.] [Adaptation - 10] -> Channel 63
Add 4
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Enable/Disable Auto Locking
[46 – Central Conv.]
[Coding - 07] -> Long Code Helper ->
Byte 5 – 0=off/1=on
Bit 4 – Auto lock
Bit 5 – Auto Unlock
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Enable DRL (Daytime Running Lights) to include the following:
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 2
Bit 1 = DRL with Front Side markers
Bit 2 = DRL with High Beams
Bit 3 = DRL with Fog lights
Bit 4 = DRL with LEDs
Bit 6 = DRL with Side markers
Bit 7 = DRL with Tail lights
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Enable Euro parking lights that turn on signal at night
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 9
Bit 0 - Set to 1
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Enable fog lamp to come on for the same side as that turn signal
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 4
Bit 0 - Check the box or change :Bit 0 set to 1
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Enable Front Turn Signals as Parking lights
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 10
Bit 0- Check the box or change :Bit 0 to 1
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Enable Gauge Test/Needle Sweep
[17 - Instruments] [Coding - 07] -> Long Coding Helper -> Byte 1
Bit 0 - Check the box for "Gauge Test/Needle Sweep active"
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Enable Hidden menu in MMI
[5F - Information Electr.]
[Adaptation - 10] -> Channel 6
change 0 to 1
Use this hidden menu at your own risk.
Caution: Keep away from the "Bootloader", if it appears as an option
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Enable Import CDs to MMI's HD
[Hidden menu]
Main/Diagnose/Settings
Import Media
Set to 4 of 4 "Copy/Ripping"
Note: CD must be inserted in player below the mmi, not the changer in the glovebox to be able to rip it.
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Enable Independent Fogs control with high beams (Fronts don't have separate fog light, only 'all weather mode.')
[09 – Cent. Elect.] [Coding - 07] -> Long Coding Helper -> Byte 4
Bit 2 – (Rear) Uncheck the box or change :Bit 2 to 0
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Enable Remote Operation Windows and Sunroof
[46 - Cent. Conv.] [Coding - 07] -> [Long Coding Helper] Byte 2
Bit 2 - Set to 1
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Enable Release Parking Brake without putting foot on Brake
[53 - Parking Brake][Security Access - 16] (Enter code presented by program)
[Adaptation - 10] -> Channel 4 Set to 0
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Enable Release Parking Brake without putting seatbelt
[53 - Parking Brake][Security Access - 16] (Enter code presented by program)
[Adaptation - 10] -> Channel 7 Set to 0
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Enable Reverse mirror tilt
[52 Door Elect, Pass.] -> [Coding - 07] -> [Long Coding Helper] -> Byte 4
Bit 4 and Bit 2 set to 1
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Enable VIM on MMI
[5F - Information Electr.] [Advanced ID - 1A] Note 1st Serial number
[Security Access] Enter Digits 6, 13, 10, 14, 11 of the 1st Serial number
[Adaptation - 10] -> Channel 48
Set to 255
Reset MMI
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Set ADS to specific preset Comfort, Auto, Dynamic or Individual
[09 – Cent. Elect.][Security Access - 16](VCDS will have popup telling you the access code, mine was 20113)
[Adaptation - 10] -> Channel 63
Set to 01 - Comfort, 02 - Auto, 03 - Dynamic or 04 - Individual
[Adaptation - 10] -> Channel 64
Set to 01 - Comfort, 02 - Auto, 03 - Dynamic or 04 - Individual
[Adaptation - 10] -> Channel 65
Set to 01 - Comfort, 02 - Auto, 03 - Dynamic or 04 - Individual
[Adaptation - 10] -> Channel 66
Set to 01 - Comfort, 02 - Auto, 03 - Dynamic or 04 - Individual
*Note all four channels needs to be set to the same value. (Uncomfirmed)

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Set Headlight washer – Duration (values in milliseconds)
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 6
change to e.g. 500
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Set Headlight washer – Activation Delay (values in milliseconds)
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 25
change to e.g. 3000
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Set Headlight washer – Delay (How many times you can activate the regular washers without activating the headlight washers)
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 25
change to e.g. 6
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Set Coming Home Time– Duration
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 43
change to e.g. 30
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Activate/Deactivate Leaving Home Function
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 46
change to 0=off / 1=on
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Coming Home – Ambient Light Threshold for activation
[09 – Cent. Elect.]
[Security Access - 16] [Adaptation - 10] -> Channel 37
change from 0-7
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Enable/Disable Coming Home and Leaving Home Function
[09 – Cent. Elect.]
[Coding - 07] -> Long Code Helper ->
Byte 6 – 0=off/1=on
Bit 1 – Coming Home
Bit 2 – Leaving Home
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Enable/Disable Parking Lights
[09 – Cent. Elect.]
[Coding - 07] -> Long Code Helper ->
Byte 9 – 0=off/1=on
Bit 0 – Parking Light Function
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Adjust DRL nighttime brightness
[09 – Cent. Elect.] [Security Access - 16] (enter security code. One of the default codes is- 20113)
[Adaptation - 10] -> Channel 3
Set between 5 and 100
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Adjust Seat Heat Stepdown Time

[08 – HVAC]
[Adaptation - 10] -> Time until heated seat power withdrawal stage 3 to stage 2 (or Time until heated seat power withdrawal stage 2 to stage 1)
Set the number of minutes you would prefer and click 'Do It.'

Documented in detail here, courtesy of MP4.2+6.0
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Adjust Massage Shut Off Time

[88 – Driver's Seat] or [89 - Passenger's Seat]
[Adaptation - 10] -> Running Time Of Massage Function
Set the number of seconds you would prefer and click 'Do It.'

Documented in detail here, courtesy of MP4.2+6.0
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Adjust Massage Intensity

[88 – Driver's Seat] or [89 - Passenger's Seat]
[Adaptation - 10] -> Intensity level (1,2,3,4, or 5) of massage function
Set the intensity(0-100%) you would prefer and click 'Do It.'

Documented in detail here, courtesy of MP4.2+6.0
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Adjust Heated Steering Wheel Temperature

[16 – Steering Wheel]
[Adaptation - 10] -> Channel-10
Temperature is measured in Celcius, 28 is default
More about it here, also courtesy of MP4.2+6.0
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I have some fiddling with VCDS to do, I'm sure that there's more to find. I will provide updates when I find anything new.

Note: Thanks to kczach for the starting point

Here's a link to disabling automatic lowering in the hidden menu of the C7 A6, but it may also be applicable to the D4 A8;
HOW-TO: Lowering AAS with VCDS

Jack; great share! I live in Northern VA and I'd like to do some VAG-COM tweaks to my D4. I don't have the equipment, and I don't know that I'd be comfortable doing this on my own if I did. Do you know of any nearby dealers or shops that would do this for me?

I can't say which dealers will do these for you, you'll have to ask the local ones. If you have any intention of doing any work yourself on your Audi at all, the VAG COM is required equipment. You could look around the forums for any Virginia folk who may be amenable to lend you theirs. They are quite easy to use.

Thx Jack88 / used the codes for needle sweep, speed D&S, 4 windows down, hard brake flash and upshift. Can confirm upshift- shows on dash?

Any other codes?

thx

No worries. I can not confirm the upshift showing on the dash, please let me know if that works for you. It's not something I myself wanted to do, but someone else her may be.

I am new to the A8 D4 world. I have just purchased a 2012 4.2 and was hoping for a slight cleaner look.

Can anyone help me with the vcds security key to lower? "31564" is not working.

Please assist and I want to thank everyone in advance.

Regards,

Exam23

Hey Jack88

Excellent work - Much appreciated.

Curious to know if you've come across coding for activating Dynamic turn signaling - like the Euro A8s?

Been looking for this tweak for some time now....

Best VAG COM
 

Which VAG COM is the best or best value?

I have this:
Ross-Tech Store: VCDS License with HEX-USB+CAN Unlimted VIN (All VAG)
It works well to do anything I need to do.

If I where to do it over I would spend the extra on this:
Ross-Tech Store: VCDS License with HEX-NET (WiFi/USB) Unlimited VINs (All VAG)
To me it's worth it just so i don't have to deal with a wire.