2021 MERCEDES-BENZ GLS450 Engine Problems

On four occasions my car has stalled while in traffic very early in my ownership and then it happened again today with my family in the car and nearly caused an accident. The entire dash lights up with every warning when it happens. Sometimes the check engine light comes on after I shut the car off and restart it. My Mercedes dealer has had it in multiple times for this reason. The last time it was in for this (May of 2022) they "reprogrammed" the entire car. It happening again today has really made me lose a lot of faith in the vehicle, especially since we purchased it for the safety factors. I read online that there are many others who have experienced this. Some say it is related to the 48V battery. I don't care what Make or Model or how expensive it is, a new car should NOT...

Repeated failures of 48 volt battery system has shut vehicle totally off while under highspeed and in traffic

2021 GLS 450 VIN # 4JGFF5KE9MA404568 Purch: Nov 26, 2022 UAG Fairfield Auto Group CM, LLC,DBA MERCEDES BENZ OF FAIRFIELD Odometer Date of Purchase 10,084 Odometer Currently *13,700 (onboard notification) TIMELINE: Total vehicle system fails while driving on highway lost engine, steering, power suddenly - stranded. November 27, 2021 Loud interference noise coming from MBUX screen, faulty graphics flashing, app not functioning. Extreme Loud “blower” noise coming from heater. Vehicle start would not work as the vehicle did not recognize key was in vehicle even though it was in the vehicle. Informed MB Fairfield. Vinnie said that the noises were “normal” . We knew this was incorrect. December 15, 2021 Informed MB Fairfield of recurring problems December 18, 2021 Car would not start/did not recognize key in a parking lot. Went into a local business for help, the owner of the shop coincidentally recently bought the same model and reported...