In this video, I'll show you how you can open the key fob and change battery or clean the battery connectors to make it work! This morning I had an issue with my car key not opening the door Key fob won't unlock the doors (all of them) but the rest of the buttons works fine (ie; trunk release, panic & lock). Passat (B6) 2006 VW Passat Key Fob Issue 2006 VW Passat Key Fob Issue. Jump to Latest Follow 6063 Views 5 Replies 6 Participants Last post by smgs92, May 21, 2013. T. Tderby6645 Discussion starter 1 post · Joined 2013 Recommended video Use spare key: You can try starting your Passat with its second key. It will also rule out any other problem with the first key, for example, water damage. How long does the key fob battery last? Depending on how often you use the key fob or remote control of your Passat, the battery should last between two and four years. hWfixY.

vw passat b6 key won t unlock