Brought the car to the dealer, left it overnight, the noise just wouldn't come up. They try to re-program the car per BMW's repair manual and found the speaker amp not responding. Got that replaced but they wouldn't touch the valvetronic motor. Had a small argument that led nowhere and end up giving in to the dealer. Now it is warmer outside, the clicking has not come back since. Warranty is running out this summer, I guess I will be on my own. May consider getting an extended warranty once I can comparing warranty price against the cost of a valvetronice motor replacement work.
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