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A8 / S8 (D3 Platform) Discussion Discussion forum for the D3 Audi A8 produced from 2003-2010 and Audi S8 produced from 2006-2010

keyless start upgrade

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Old 08-02-2014, 08:25 PM   #1
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Default keyless start upgrade

So I basically thought my 04 a8l was the coolest car on the planet.... until I saw my friends 05....

He has the complete keyless entry with keyless start and push button start.

Is there any way to retrofit the system into my 04? Would it even be worth it? How complex is the system?
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Old 08-02-2014, 09:14 PM   #2
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Originally Posted by Steelcitymafia View Post
So I basically thought my 04 a8l was the coolest car on the planet.... until I saw my friends 05....

He has the complete keyless entry with keyless start and push button start.

Is there any way to retrofit the system into my 04? Would it even be worth it? How complex is the system?
NO.
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Old 08-02-2014, 09:36 PM   #3
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It is quite complex system with a bunch of sensors and antennas. Definitely not worth it.
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Old 08-03-2014, 12:00 AM   #4
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I didn't think so. Haha.
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Old 08-03-2014, 05:25 AM   #5
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If you really gotta have it, replace the car. Or, each time you have to labor to press the button on the fob or place the key in the ignition and turn it, remember that you have an extra $5-10k n your pocket by driving an older car.

I wouldn't even consider changing headlight or taillight assemblies to make the car appear more like a newer model.

Plus, if you were to "bastardize" the car, if in ends up immobile, authorized dealers could refuse to work on it. Then what?
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Old 08-03-2014, 08:49 AM   #6
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Perfect example of me and Mister Bally's cars. I went to meet him for some help with VCDS and he has an 04, I had/still have the 2005 with the main differences between ours being mine had full leather package, keyless start, and the locks on the outside of the car. Really not worth retrofitting.
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Old 08-03-2014, 01:58 PM   #7
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I didn't even know that A8 cars came without the keyless go. I knew there were two versions of it though. The normal button and the fingerprint reader. All the 4.2 cars here have the latter.

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Old 08-03-2014, 08:03 PM   #8
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Quote:
Originally Posted by mcs View Post
I didn't even know that A8 cars came without the keyless go. I knew there were two versions of it though. The normal button and the fingerprint reader. All the 4.2 cars here have the latter.

Mike
Now you know. '04 North American models did not have the Start Stop button. Fingerprint readers never were imported by Audi/VW USA or Canada for the D3's.

Brozee, my son & I drove MP4.2+6.0's W12 a few weeks back; What an amazing machine. More important, what an amazing AudiWorld user. I somehow ended up with a couple of new air cleaner elements for the ride down Pacific Coast Highway. Then on to San Diego before heading to Las Vegas and then back home.

Amazing coincidence; we were filling up my A8 with gasoline after washing it and my son noticed MP4.2+6.0 driving by the gas station the night before we met up. Small world.......

Last edited by Mister Bally; 08-03-2014 at 08:41 PM.
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Old 08-04-2014, 04:52 AM   #9
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That's funny you say that. I met up with Banglara and spent a few days hanging out with him in L.A. and Hollywood when I went down to Cali. More than helpful and extremely knowledgeable. His W12 was what had me sold on getting mine.
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Old 08-04-2014, 06:47 AM   #10
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Default Remote start is more useful

I'd spend my money on a remote starter instead. Far more useful than keyless entry/start will ever be...

www.xpresskit.com do plug and play remote start interface modules for the A8.
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Old 04-07-2015, 05:32 AM   #11
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Default replace start-stop button

Hi everybody
one week ago I decided to replace the old "start-stop switch" (4E1905217) with a "start-stop switch with fingerprint identification system" (4E1905218) ....
The flat contact housing (4A0972883) is identical for the both start-stop switches, so the replacement was easy, without any adaptation for wires.
http://www.partsbase.org/audi/audi-a8-a8-eu-2006-91900-display-and-control-unit-for-multimedia-interface-mmi/
After replacement, the message on MMI / user : error connection
A friend who has VCDS check my car and told me that "the MMI doesn't see the module for fingerprint (J589) or probably this module doesn't exist on my car" but I check myself on internet and the module is included in the "start-stop fingerprint switch":
http://www.audi-portal.com/en/diagnostic/ecu_12715.html#1
The new switch (with fingerprint) may be defective ? or have "component protection" ?
Does anybody know how to fix it ?
Thanks in advance
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Last edited by Sputnik2; 04-07-2015 at 05:35 AM.
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Old 04-07-2015, 06:35 AM   #12
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Quote:
Originally Posted by Sputnik2 View Post
Does anybody know how to fix it ?
Thanks in advance
I think you may have to CHECK the box for "1D-Driver Ident." in the installation list, I am not 100% on this, But it's worth a try, you can always un-check it.....

Johnny J J
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Old 04-07-2015, 06:42 AM   #13
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Quote:
Originally Posted by dvs_dave View Post
I'd spend my money on a remote starter instead. Far more useful than keyless entry/start will ever be...

XpressKit.com - Interfacing the Past, Present and Future. do plug and play remote start interface modules for the A8.
Dave, have you successfully installed this remote start kit? You don't have a write up or part #s by chance? Thanks!
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Old 04-11-2015, 07:41 AM   #14
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Above x2
Been looking for one for a while
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Old 04-12-2015, 03:57 AM   #15
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Everything I have read says that for remote start to theoretically work you would basically be making your car a thief's dream as the key has to be in the car for it to start. So you'd need to hide a key in your car which would allow anyone anywhere at any time to just hop in and steal it.
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Old 04-12-2015, 03:57 AM
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