Bimmerfest - BMW Forums - View Single Post - key lock system
Thread: key lock system
View Single Post
Old 12-11-2012, 11:40 AM
QSilver7's Avatar
QSilver7 QSilver7 is offline
Officially Welcomed to the 'Fest
Location: Northeast Indiana
Join Date: Aug 2008
Posts: 9,158
Mein Auto: 1997 740iL / 2006 X5 4.4
FZV & DWA (central locking/anti-theft alarm siren systems) Info

The remote keys contain 3 different technologies (EWS/FZV/DWA) which work in conjunction with each other. The problems you describe sounds like you're having issues with FZV & DWA.

Here's a link to a BMW Technical document (PDF) that goes into detail about FZV (central locking system) as well as DWA (anti-theft alarm siren system) in way more details than I can write...maybe it can help explain some of the issues you are having:
Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

Last edited by QSilver7; 12-11-2012 at 12:15 PM.
Reply With Quote