Rear Door Unlock

JimV · 10-08-2007, 05:25 PM

Im guessing everyone will say use a VAG, but could I ask the dealer to do this? I did STFA but didnt find anything definitive except that others experienced it and didnt like it.

In my A4, when you shut off the car, all the doors unlock so you can open them from the outside. In my A3, the rear door and the trunk remain locked.

To me its annoying that I have to remember to press the unlock button and even that doesnt unlock the trunk, thats a different button.

Is there a way I can fix this myself through some switch somewhere or is it VAG only?

If so, does anyone have the codes?

MikeSS · 10-08-2007, 05:47 PM

You'll need a VAG-COM--

Select module 46--the Comfort Controller
Channel 03
Should be = '1' for selective unlock
Change to '0' for full unlock.

Your dealer should be able to change it, IIRC.

wallaby · 10-09-2007, 03:56 AM

But I'm in Australia, maybe the default is different here.

formerly dennisA4 · 10-09-2007, 06:56 AM

absoluTT A3 · 10-09-2007, 06:58 AM

All I need to have them do is enable the rear fogs.

Long Coding - 07
* Byte 03 bit 01 to '0' for both rear fogs, or '1' for 1 rear fog
* Byte 04 bit 04 to '1'
* Byte 04 bit 06 to '0'

Would they be willing to do it? It's the only VAG COM update I need... I'd rather not fork over $250 for just one change. Thanks...

MikeSS · 10-09-2007, 07:43 AM

and some do and some don't......

MikeSS · 10-09-2007, 07:46 AM

they may or may not have a VAG-COM. They'd have to use the standard VAG computer tool and I don't know what settings they can alter with it.

You'd do better locating someone in your area who has a VAG-COM.

Bezor · 10-09-2007, 02:30 PM

use the remote.

Very, very irritating.

Nice to know that it can be reprogrammed. Wonder how much for dealer to do so?

10-08-2007, 05:47 PM	#2
MikeSS AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 2,352	After the '06 MY, Audi changed the door unlock coding. You'll need a VAG-COM-- Select module 46--the Comfort Controller Channel 03 Should be = '1' for selective unlock Change to '0' for full unlock. Your dealer should be able to change it, IIRC. __________________ Now: 2012 A3 2.0Tq Then: '06 M3 '06 A3 2.0T '76 Beetle '99.5 A4 1.8T qms '92 Corrado VR6 '87 GTI 16V '83 GTI '79 Rabbit '77 Rabbit '75 Beetle '65 Beetle

10-09-2007, 03:56 AM	#3
wallaby Member Garage is empty, add now Join Date: Jun 2001 Posts: 2,998	Interesting. On my '07 A3 all doors and the tailgate unlock. But I'm in Australia, maybe the default is different here. __________________ 07 A3 Sportback 2.0T Quattro 6spd Manual 04 Allroad 2.7T 6spd Manual (sold) 95.5 S6 Avant (sold, sob) 91 Coupe Quattro (sold)

10-09-2007, 06:56 AM	#4
formerly dennisA4 AudiWorld Super User Garage is empty, add now Join Date: Nov 2001 Posts: 9,286	Maybe and Audi also changed the defaults on different years here in the US. __________________

10-09-2007, 06:58 AM	#5
absoluTT A3 AudiWorld Senior Member 2007 Audi A3 Join Date: Aug 2006 Location: Near Manhattan Posts: 1,041	Mike, what is the dealer willing to do with VAG COM and what's the usual charge? All I need to have them do is enable the rear fogs. Long Coding - 07 * Byte 03 bit 01 to '0' for both rear fogs, or '1' for 1 rear fog * Byte 04 bit 04 to '1' * Byte 04 bit 06 to '0' Would they be willing to do it? It's the only VAG COM update I need... I'd rather not fork over $250 for just one change. Thanks... __________________ 2007 2.0T/S-line/DSG/OS/CW/TP/CP/OceanBluePearl-Gray/+some cosmetic mods 2003 TTQR 6MT 225hp -->... Absolutely missed. :-(

10-09-2007, 07:43 AM	#6
MikeSS AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 2,352	If it isn't consistent in '07s then maybe it was set by the dealer at PDI.... and some do and some don't...... __________________ Now: 2012 A3 2.0Tq Then: '06 M3 '06 A3 2.0T '76 Beetle '99.5 A4 1.8T qms '92 Corrado VR6 '87 GTI 16V '83 GTI '79 Rabbit '77 Rabbit '75 Beetle '65 Beetle

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10-09-2007, 07:46 AM	#7
MikeSS AudiWorld Super User Garage is empty, add now Join Date: Mar 2000 Posts: 2,352	You would have to ask your dealer what they're willing to do... they may or may not have a VAG-COM. They'd have to use the standard VAG computer tool and I don't know what settings they can alter with it. You'd do better locating someone in your area who has a VAG-COM. __________________ Now: 2012 A3 2.0Tq Then: '06 M3 '06 A3 2.0T '76 Beetle '99.5 A4 1.8T qms '92 Corrado VR6 '87 GTI 16V '83 GTI '79 Rabbit '77 Rabbit '75 Beetle '65 Beetle

10-09-2007, 02:30 PM	#8
Bezor AudiWorld Super User Garage is empty, add now Join Date: Apr 2005 Posts: 2,062	My '07 doesn't unlock the other doors until you push the unlock button on the inside of the door or use the remote. Very, very irritating. Nice to know that it can be reprogrammed. Wonder how much for dealer to do so? __________________ '07 A3 Light Silver/Light Gray 2.0T DSG/S-line/Open Sky/Tech pkg/Cold Weather pkg '01 BMW E46 Orient Blue/Tan / Special Order

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