I recently got a used 2014 Hyundai Elantra GL (all 4 disc brakes) from a mechanic, he says the brake pads are new, but I continue hearing loud grinding noises from the front brakes (I suppose) from inside the cabin.
Here's a video I shot where you can clearly hear the noise.
The car also stops with a jerk.
In the video, you can see the camera shake because of this jerk.
What could be the problem here?