Add this to the list. Broken serpentine belt which punctured the coolant rubber hose. I was near 7000rpm when I heard a short not too loud thud from under the driver side hood. Then when I came to a stop, there was a constant thudding coming from the front, and could be felt from the steering wheel. The thudding quickened when I accelerated. I went on my way (no error message and the car kept going fine) for 2~3 more miles. Parked and when I returned there was a puddle of blue coolant near driver side front tire. Towed it to the dealership and I'm wondering how much they'll ask.