We got woken up this morning to a loud beeping coming from outside, about 50 beeps then off for about a minute then another long line of beeps. Looked out the window and couldn't see the source and eventually it stopped so we ignored it. We just tried to unlock the X3 with the remote and it didn't unlock, instead the beeping started again. I unlocked the door with the key manually and tried turning the ignition to no avail.
A few months ago we had some battery problems so I replaced the battery. I've got a feeling the battery might be dead and there's not enough juice for it to detect the chip in the key to disable the immobiliser. Any ideas? Will have to try to jump start it on Monday to take it to a local indie dealer. I'm guessing it'll need a new alternator so will likely not be cheap to fix.