The Comfort Access keys have non-rechargeable batteries and a little access panel to allow you to replace the battery when it dies.
Originally Posted by ajm8127
If the antenna for the key FOB is in the shark fin, ... battery in the key FOB. ... FOB circuity, ....
I just popped the battery door off of my FOB ... putting the FOB in the slot should recharge the battery. ...
Bottom line: Pop the battery cover off your FOB. ...
Non-Comfort Access keys have rechargeable batteries that cannot be replaced without disassembling the fob.
OP stated in post #4 that he does not have CA therefore advice to inspect/replace the battery is unhelpful. (Also, the rechargeables in the keys easily last over a decade with normal/regular use.)
Also, FWIW: http://www.bimmerfest.com/forums/sho...6&postcount=18.
2011 335xi Individual 6MT - Azurite Black Metallic / Oyster & Black / Anthracite Maple + all the good stuff
N47° 35' 30.13" E11° 10' 33.36"
- End of break-in period. You can guess the rest. BMW CCA
Last edited by Zeichen311; 09-05-2012 at 12:07 PM.
Reason: Post #