I have an interesting problem with my 05' X3. I has a valve tick but only after the engine warms up for a few minutes.
The story started out with water getting into my crank case. Not a lot but enough to get into the Crank case vent valve and stick it closed and blow out my valve cover gasket. I replaced all associated parts and changed the oil but the tick remains. I was told of a bleed procedure of holding the engine at 3k RPM for a few minutes but that didn't help.
Anyone have any ideas? I REALLY don't want to take it to the dealer. I am fairly handy with tools and am confident i can do just about anything that needs to be done to check it out or fix it.