Auto Locking doors

[Spartan]

Now before you say search, I have and only one person mentioned something close to what I did. So,...

My X5 has always auto locked after a certain speed, which is irrelevant. I like this function and I am sed to it.
I have two keys, but only one seems to have battery power to operate remotely. I read the fix on the forums here and I put a new battery in but it still does not operate remote signals. It will start, unlock and lock ok as well as drive. My regular key is fully functional, all remote works fine.


I decided to see if maybe using the other key would put some life into it and used it for about five days, but had to manually lock and unlock the car each time I parked. I got tired of this and returned to using my remote keys. I am not sure, but I may have left the car unlocked from one key and locked it by remote from the other or it could have been locked and I locked it again by remote to be sure. I cannot remember as I have the attention span of a goldfish when it comes to menial daily tasks these days.


So now when I use my main key, I do not get the auto lock function and we still get these crazies washing your windscreens at the stoplights and than wanting money. I cannot figure what I may have done that caused this issue, but I have read in posts that you shouldn't press the fob buttons too many times near the car or in quick succession and during my search I was sure it was "WPoll", who asked one of the members if he had used a different key when his auto lock feature was disengaged?


So, does anyone have any ideas what might be the issue as this function was working 100% on the fully re,ote operating key, but stopped working after I used the key without remote function?