A6 C4 no alarm/ir key remote after battery off

[macspring]

To be honest, will not be doing it for a month or two, too busy, and not under pressure to do it.

What I had in mind is that to adjust combined total of the numbers to get the beep of the horn to turn off when the alarm is switched on.

And also to see if the central locking can altered to get it to lock all of the doors when the speed say goes over 15mph.

Not much help to you right now, but if I ever do ever get to do any experimentation, I'll update the thread, but I know it won't be anytime soon, sorry.

Best wishes in the meantime.

[UrS4boy]

Just found this recode locking guide:

http://www.ross-tech.com/vag-com/cars/audiB5.html

but it is for B5 i dont know if it is fit for C4

Because B5s never had InfraRed remotes, that info is NOT appropriate for a C4 with IR remote.

I presume you read this in the link I provided:

"Sometimes the issue isn't batteries but the little Item 29 infra red bulb:"

[Joop]

Because B5s never had InfraRed remotes, that info is NOT appropriate for a C4 with IR remote.

I presume you read this in the link I provided:

"Sometimes the issue isn't batteries but the little Item 29 infra red bulb:"

UrS4boy thank you for your patient and revisit my post.
http://www.audifans.net/ftopicp-154943.html - these codes are valid for C4 too.

Today i tried to reset the software code for the central lock.
00000 and than write back the previus value(10184 its a valid value).

http://www.audifans.net/ftopicp-154943.html

After i tried to teach the keys.

http://www.ross-tech.com/vag-com/cars/vw-remote-matching.html

This seems could work in my case:

[Select]

[46 - Cent. Conv.] or [35 - Cent. Locking] (whichever is applicable to the car, as found here)

[Meas. Blocks - 08]

Enter group "003" (may be group "007" in some vehicles)

[Go!]

In my case in the second field is 0000->no keys avaliable doesen't move to next memory positions:

[Select]

The value in field 2 shows how many remotes have been matched and in which memory positions (for example, "0001" indicates 1 transmitter in position 1).

Lock the car from outside using the new, unmatched key in the driver-side door lock. You may need to hold the key in the unlock position while you do the next step.

i pressed the button 1 timein the last field the first two bits are changing when i press lock and unlock so the cars receive the signs)

[Select]

Press the UNLOCK button on the new key within 5 seconds often enough to reach next memory position (so, if the value in field 2 was 0001, you should press the new key's unlock button twice, to put the new key in memory position 2)..

Yes the indicator is blinkingbut nothing change in VCDS field 2 is still 0000)

[Select]

The car may give you some sort of acknowledgement as the button is pressed (lights flash, horn beep, etc.)

I do this:

[Select]

Wait 5 seconds and press the unlock button on the new key to unlock the door.

But can not open the door with unlock button and nothing happen more:

[Select]

Turn the ignition key to OFF and remove the old key.

Press LOCK and UNLOCK with the new key.

Insert the new key in the ignition and turn to the ON position (do not start car).

Still nothing change

[URSIMPO]

Bit of an old thread, but when my battery has been disconnected, I just lock and unlock the car using the key. After this, the IR remote works.

[GreenMachine]

http://forums.quattroworld.com/s4s6/msgs/304984.phtml