Key remote wont lock or unlock doors on 2003 BMW 745Li

key wont lock or unlock doors utilizing the remote. is there a battery in the FOB that could be bad? I was told that the remote recharges as I use it to start the car. Please help!

Asked by for the 2003 BMW 745Li
Call your BMW parts department at the BMW dealer and ask them how much to remove and replace the remote battery.
2 more answers
I have the same issue with the same car I am told its not possible to replace batterioe in key and a new one has to be ordered, I am however wondering mayby its the cars batterie that need to be replaced
I have the same problem and I had someone check my key remote and was told the battery was still good but for some reason it will lock my doors but won't unlock them. May replace battery just to see what happens and you don't have to go to the dealership to get a replacement battery. Can be purchased at any store counter that sell watch batteries.