Sorry. Just did. It’s a 2018 GLC300 4Matic. Bought brand new now has over 65k miles.
Have a 2018 GLC 300. Breaks shriek in reverse in cold weather. The colder the louder. Love my car otherwise. Not hopeful for a fix at this pointHad my 2016 in for 24-month service this month. Dealer did another fix (second one) for squealing brakes, but since they only squealed when it was cold and it's been very mild here, I don't know if this one worked.