My Audi A6 auto-locks itself while running with the keys inside. This happens repeatedly when I use the 'Start' button to start (i.e. proximity key) and then step out to brush off snow, move something in driveway, etc and then, CLICK, the car lock me out with my keys, phone, everything inside. I have had to wait 45 minutes in freezing weather for an emergency locking service. Audi has been unable to solve (but has replicated) so they cut a special key for me that opens door and doesn't start car and 'hid' it outside car so I wouldn't be stuck again. But...it's a DANGEROUS problem. Any ideas out there??????

it depends on year of car and make of RADIOHERE IS THE SETTINGS FOR A 2002 AUDI A6 Quattro V6 2.7L Turbo (APB) engine code
For the Audi Concert Radio
YOU STILL NEED YOUR RADIO CODE TO ENTER THIS!!!!!!!!!!!! tell me if this work for you
Entering Anti-theft Code

The following is the procedure to re-activate the radio if the display shows "SAFE". It is important that the procedure be followed in the correct order.

1. Turn on radio. The radio display shows "SAFE".
2. Press the FM2 and RDS buttons simultaneously and hold until "1000" shows on the display. Release the buttons. Do NOT press these buttons again, otherwise the radio will consider "1000" to be the code.
3. Use Preset buttons 1 ... 4 to enter the four-digit code number from your radio card. Preset button 1 corresponds to the first digit, Preset button 2 corresponds to the second digit, etc. Each press of the button increments the number by 1.
4. Once the code shown on the display is correct, press the FM2 and RDS buttons simultaneously and hold until the word "SAFE" appears in the display, then release the buttons.
5. The radio should unlock and be usable shortly afterwards.
6. If an incorrect code is entered, the word "SAFE" appears, first flashing and then continuously. You can repeat the above steps to unlock the radio once more, the number of attempts will be shown in the display. If an incorrect code is entered again, you radio will be locked for about one hour. After one hour - the radio must stay on and the key must remain in the ignition lock - if the display goes out, the you can repeat the above procedure to unlock again. The cycle - two attempts, one hour lock-up - still applies.
7. If you lose your radio code, contact your Audi dealer.

Note: Some European market Concert radios have a TP button instead of the FM2 button, so the description above with those units would require pressing the TP and the RDS buttons simultaneously.

Guys hope yourl keeping well

Ive got a 1998 A6 2.8 Quattro
Ive changed the gearbox and the vehicle dont start now.
the engine swings from the starter but when using the key it turns once and nothing happens thereafter the key is locked in on position where im getting ignition lights

Can anyone help???

try this,with the key,unlock/hold key over for 30 secs (windows will go down) .then lock/hold key over for 30 secs.(windows will go up,then lock the car with the remote,you have just reset the autoclose facility inside the computer.may help!!

This happens in my A6 ALL THE TIME. I start my car with the Start button and step out (to brush off snow, etc) and-bang-my car auto-locks itself with the keys, phone, everything inside. So I am STUCK! Audi can't solve so they cut a custom key that unlocks the door but doesn't start the car and 'hid' it for me so I could at least recover from this DANGEROUS problem. Terrible that they cannot solve this.

if you cant turn the key in the trunk lock : use a thin oil, something like sewing machine oil, and squirt it in to the key hole, run the key back and forth in the hole then squirt some more, repeat until you can turn the key,
if you can turn the key and it wont open, then i cant help you, you could try to remove the back seats to gain access,(removing the bolts and removing them that way)

i have audi a6 2005 ,i turn the key to start noting happen, the lights on the dash does not come on, i checked the battery is good, when the key is on on position the stearing wheel is not unlocked

Sounds like you are having problems with your built-in alarm system. Like most systems in your Audi, you can read the error codes stored in the controllers. It takes a tool normally only a dealer has (VW or Audi) or an adapter like the VAG Com. (Google it)

I also think you can disable the alarm system and just use the key.

Could the lock button on your remote be stuck? Use a different key/remote. (leaving the suspect key at home.) The keys/remotes can be taken apart....

If the valet key is not programmed to the Immobilzer system, it should start the car, but it will shut off. This is only if the car has an Immobilizer system. If your locksmith unlocked the car without the door key, then use the key to unlock and disarm the alarm in the door. If you triggered the alarm, the starter will be disabled till a unlock signal from a remote or the door is actually unlocked with a key. If that cannot be done, your only solution right now is to tow it to the dealership and have them make a master key and check the door locks for proper lock/unlock commands so the alarm will arm and disarm correctly.

I have an A4 and did this to re-program my key:

1. used the key to start the car...then turned it off
2. put the key in the driver door (door closed)
3. pressed the lock button on the key fob once
4. turned the key to lock the door.

This is basically the steps in the owners manual, but the car must be started with the key first, and the key must be in the door lock before pressing the lock button.

The rear hatch has a proximity sensor that senses your "smart key". If any sensor is disconnected, the auto-unlock/lock feature AND the push button start feature will not work. My guess is that the proximity sensor in the hatch got disconnected.