u/Lucky-Kangaroo495

Is it normal to hear loud hissing from air struts which were just replaced? It is a loud hissing sound from the rear drivers side that I have never heard before. It happens when I exit the car, when I close or open the trunk, sometimes when I open a door. I’ve had t he car since 2015, it’s a 2013 CLS550.

In a classroom with paras who spend the day talking amongst themselves, gossiping, complaining, and ignoring students except to yell at them. Lesson plans are detailed and very organized, but not followed, nothing is learned. It’s truly unbelievable. The teacher is present and ignores this. She can’t do her job but stays quiet. Why would this behavior be tolerated?