[wward1495]

2017 330i GT 64k miles. Randomly felt a loss of power under acceleration. Like turbo lag but very severe. I was on my street when this happened and drove home. The next day I drove the car and had zero issues for about 3 miles when an electronic noise could be heard from the engine bay. Like a low hum. It then had the same power loss and I began to hear a loud rattle from what seems to be under the engine compartment (like a bunch of coins being tossed in a dryer). The vehicle sounds and acts normal under idle in park. Again, no errors or malfunctions being displayed. Any help or ideas are appreciated.