Go get another opinion as Service departments at dealerships are still learning how to take care of EVs. Plus follow the advice on the warranty. It should still be under warranty. If all of that doesn’t work, then contact Mercedes Benz customer service.
Tax credits, less demand, significant price drops by many brands in the past 12 months, inconvenience of charging (it’s not a Tesla), and uncertainty about the continued lowering of EV prices.
EV market share in America is up. There isn’t a slow down, but there is more inventory. People however are negative about them though for many reasons, as having an EV is not as convenient as an ICE vehicle.
Some dealers do try, I won’t let them