Audi A4 Security System

10 messages, Last post on Sep 02, 2009 at 6:54 AM

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#9 of 10 Locking / security system issues by npsnowmo May 28, 2009 (1:20 pm)
I have a 1999 A4 that has been sitting idle for the past 3 months, while I slowly completed an engine rebuild. Now I got it all up and running, but now the locking system is out of whack. The key fobs do not work at all, even after replacing battery in the fob. After I unlock the car manually with the key, all the doors lock about 10 seconds later on their own. I tried to "re-synchronize" the fobs as stated in the manual--nothing doing. Do I just need a re-program at the dealer, or is the module gone bad? Any help is appreciated--thanks.
#10 of 10 99 Audi A4, cannot disarm security system by jim_a4 Sep 02, 2009 (6:54 am)
I can unlock the door manually with the key (not the key fob...) but the button on driver door didn't go all the way up.When I open the door, alarm goes off. And cannot start engine either. Dealer tested it and said control module cannot receive any signal from any key cylinder so they ask me to spend $1300 replacing all key cylinders and switches!!!!But they are unsure if that will fix it or not.... Any help, suggestion or comment!!!!!!!!