I suspect the dealer is dumbing down the work being performed for my "benefit." They never seem to give me much credit for the extensive technical knowledge I have about cars and specifically German cars, but I digress. What I do know is that they're making a repair per the TSB that addresses ticking noises in the N51/N52. Personally, I don't know how anyone could mistake injector tick for valve tick, but I guess if you're not really familiar with the difference it might be hard to discern. When the new dealer I tried told me that what I was hearing was injector tick and not valve tick, I decided then that they probably weren't the dealer I wanted servicing my car.
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