I purchased a 2021 GLA 250 last December and after owning it for a few months the AC was making a very loud sound and not cooling correctly. I took it back to the dealership and explained what the problem was. I left it at Mercedes for a few days to be repaired. When I picked it up I was told the AC was loud because of twigs getting in the vents. I was very reluctant to believe that this was the problem. After only one day the AC began to make the same noise and it was not cooling correctly. It is back at the dealership being repaired. I would never think that a brand new auto especially a Mercedes would have such a problem. They should replace the AC. I am very disappointed and will most likely not buy another Mercedes. What are your thoughts? Did anybody else experience this problem?