Quote:
Originally Posted by andrewc89
I'd say the blown amp is a pretty common issue. Watch out when washing the car, don't stick a power washer in the drivers side rear wheel well since there's a vent in there. Also if you tint the rear window water can also get into the area and damage the amp that way as well. And if you get super loud scraping noise from the rear of the car ever it's probably just a pebble stuck in one of the rear brake dust shields. There's an updated part you may or may not have on your 2017. I'd check to see that your car has it. Could also be a problem with the diff but that would be covered under warranty. That's really the extent of problems to be aware of or expect. These cars seem to be extremely reliable (as far as bmw's go).
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I JUST got that scraping sound in the rear and is getting checked as we speak. Its a horrible high pitched metallic sound! I hope its just something caught in the dust shield!