door lock on 2002 BMW 325Ci

I am having a problem with my alarm on the key, it won't work. Sometimes the passenger door wont unlock when i put the key in the door (now I have to manually lock/unlock my doors) i notice sometimes the alarm activates and doors lock w/my key but it's more seldom now. Any thoughts?

by in La Verne, CA on December 08, 2010
1 answer
ANSWER by , December 14, 2010
The keys have a built in battery and is charged via the the ring surrounding the key slot in the column, is the vehicle driven regularly, as this could be a case of low key battery voltage. This might be a case for a dealer to check as from this point on, if the fuses are all ok, there is nothing else a consumer is able to check