yesssssssssssss.it is very very very very high in my opinion.... a simple windshield spare+replacement fees will cost you 3400 QAR: 1900 (spare after discount !!!) + 1500 labour fees(450 only in industrial area) ... :(
Some maintenance , you can do it outside less expensive, but for others , you should take your car to official mercedes work shop.... and there..... :(