I purchased a 2021 GLA on 6/11. I was really excited and had been talking to my salmons for w few weeks prior to my purchased. I originally was going to get a 2020 until I saw a video of the 2021 release and decided to wait. When I test drove, I fell in love with the car instantly and purchased it that day. I drove it around Va for little (i purchased the car at a dealer in northern VA) and then drove home to southern MD about 40 miles away. Next day I was out running errands locally, when the car gave me an error message stating that car couldn't be put into reverse. I was driving forward. The car then went into neutral and gave another error message when I tried to switch into drive. I couldn't pull over but switched into a turning lane and put the car into park so I wouldn't get rear ended but I was stuck at a light until roadside assistance came. The car was towed to the dealership. The service liaison told me that a screw was cracked and I was leaking transmission fluid. They replaced the parts and test drove the car and performed a quality control check. They also threw in some accessories (a lighted mercedes star logo and LED door projectors.) Ive had the car back for almost a week and while it is driving fine, I am scared of it reoccurring. I got lucky and was able to pull over but worry that if it happens again I won't be able to. There are stretches of my drive that have no place to pull over. Should I take it to another mechanic to verify the work or just trust that it fine?