This is my first post but I thought I’d share my weird experience in case someone else was having the same issues. I was driving my 2014 CLA 45 AMG and I noticed some weird noises coming from my exhaust or under the car. First I noticed my exhaust nod was not even bolted in so I went and got that properly install but the sound was still there (slightly less). I couldn’t tell what was causing it still so I went and checked and after some investigation I was able to find that this exhaust piece was not inserted into the two rubber mounts. I’m going to take it in tomorrow to an exhaust shop to see if they can pop back in but very strange. Hope this helps and I’ll keep you updated as to the fix tomorrow. Thanks.