Hey guys.
I have 04 A4, couple weeks ago my remote started to fail on closing/opening doors and etc.. So I had to use the key manually. Yesterday it stopped work remotely at all.. So I changed key battery, and it still doesnt work.. Can you please advise what do I need to do in order for it to work??
Thanks in advance to everyone who`s trying to help..

 

Thread moved to the proper forum.

 

Put key in ignition, hold unlock, turn key forward one click while holding unlock, count to 10.

My remote didn't work at all when I got it. Put a battery in it and did the programming procedure above and it worked great, for a couple of days. I was programming it once or twice a week. I scanned it the other day because I wanted the remote to roll down the windows when holding the unlock button and it had several codes related to the locks/security system. I cleared the codes and the programming has stuck ever since.