Maybe ask about a loaner car while your car is in the garage and hopefully they can accommodate? Someone I know got damage to their recent model Ford that took half a year to get parts due to supply shortages in the car industry generally.
I waited 18 months to get the cruise control/MBUX cameras replaced on my brand new EQC400. I had to fight MB Australia really hard to get them to replace them. They outright lied to me early on that the parts were ordered when they were NOT........ I like Mercedes vehicles (historical view now changing) but their service model is the worst it has ever been.And on it goes
Cannot tell me when they can replace the panel
So as we will move into the last quarter of 2022 I remain without the car I bought and I have no idea when it will be repaired.
What can one say only don’t expect service or care from Mercedes.
Do not expect a brand new care to be problem free and do not expect them to be able to replace parts that do not work.
Probably better off keeping your old car I would say especially if it works
Thanks for your report. Not sure if it is of consolation but regarding VW, you may be a statistical anomoly as Mercedes generally had fewer initial problems than VW this year, using USA as example at least....I drove VWs for years and I can say that I never had such a problem-ridden beginning with those cars. I’m quite disappointed.