Mercedes-Benz GLC review

I purchased the car in Sundaram Motors, Chennai. From day one I am struggling with wipers chattering and rear door improper closing issues. In last one year from my purchase the car is in service center for more than 30 days. Even now it is in service center only. Even after giving the video proof they say there is no problems. They are cheats including team Mercedes-Benz. I wasted my money to both Mercedes-Benz and Sundaram Motors, Chennai. Never buy this car and also at Sundaram Motors. They are cheating the customers. They always try to convince us that there is no problem.