Funny how your story sounds so similar to mine. New 1250, engine noises, dealership saying "they are running in noises". I am pretty sure it all started with a ticking right cylinder and gradually progressed to a point where under acceleration (at any speed) the knocking from the engine was unmistakable. The noise coming from the engine had become so loud that a fellow rider could hear the noises whilst riding beside me at 100 KPH. Strangely enough the dealership could never hear it (possibly the mechanics had developed some form of industrial deafness due to the nature of their work) I decided to take it further and contacted BMW Australia and CC'd the dealership. To my surprise NOT A WORD in reply from BMW. I had explained in my letter to BMW ( just to show I was an avid BMW user) that I was also the owner of several BMW cars including a number of M Series. A substantial amount of money spent on their products I thought. Obviously not according to BMW Australia. Not so much as "We received you email" After a couple of weeks went back to the dealership. It is possible that they decided to help me themselves, although I got the feeling that BMW Australia gave them the directive to see if they could find the issue, without ( BMA Australia) appearing to be involved. A long drawn out process of measuring, adjusting and swapping of parts. The latest of which was a change of heads (had to come from Germany) Two weeks later they arrived but didn't fit So once again we wait for another set to arrive. The result is that the bike has lost the knocking but not necessarily the ticking from the right side. Unable to really venture out for a good ride at these unfortunate times I haven't really had the chance to see the full result. However over the 300k's or so that I have ridden I am not convinced that it is fixed.In all the bike has been in for repair approx 4 months of the nine I have owned it. I guess that helps keep the milage down In fairness I believe the Dealership may have had my interests at heart but possibly had their hands tied on what they could and couldn't say. I read the forums often but never really contribute. It was just that your tale sounded so familiar.