So for the past couple of months or so, I noticed that every once in awhile, when I attempt to lock my E via the keyless remote, it doesn't actually lock the vehicle.
Upon further inspection, it's as though the system/vehicle doesn't have enough juice to lock the vehicle (it makes a faint "clicking/locking noise" but doesn't actually lock the vehicle). It sounds extremely strange, but that's the best I can describe it.
Also I noticed more recently that when I use the remote, the light via the keypad registers, but in particular cases it's brighter and than sometimes more faint.
I suspect that the remote may need a new battery. If in fact it does, do I just pry the keypad open?
Just want to get an idea of what I'm dealing with as I'm a bit of a noob when it comes to all of this.