I know, cause if there no rings then you cant just activate it
But if there is no rings, then you can still activate DRL by leaving the lights in the on position then they should turn on when the car gets turned on & turned off when the car gets turned off.. (Even my 2000 E46 has this function)
if the car has iDrive then try changing it from there
if not, then from the OBC on the indicator stalk...