Hi guys, I am experiencing a weird noise from the back of the vehicle when going at slow speeds or reversing. You can see the video below to see what kind of noise this is. I was wondering if anyone had an idea as to what it could be. The vehicle is a 2016 W205 Mercedes Benz c350e hybrid model. I was unable to upload the file as an mp4 but if you unzip the file you should be able to access the recording of the sound.