Lifter springs
Went to my dealer with the ticking problem. Tehey were not able to locate a service bulletin on the problem. They contacted BMW of N America after they were able to duplicate the noise. Replaced 2 lifter springs that they felt were machined inproperly. Cleared up x 4 days, then I heard the noise again, but less pronounced. They were not able to duplicate. As the weather get colder, i expect the problem to surface again. Have not heard it in a week.
Let me know how you make out.
John
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