Is it normal to go through 2 sets of brakes and now 4 sets of tyres in 41.000km

What is your question?

I purchased the Mercedes Ml63 new in 2013 since then i have done about 41.000 km and replaced brakes twice and now tyres 4 times. My endless attempts in finding some answers both from Mercedes and the dealer have been not what i expected from a manufacturer like Mercedes. I don't drive vehicle fast or aggressive for this to be happening, last two sets of tyres have gone 7.500 km and 6.500 km. I actually expected lots more from Mercedes , as i was a BMW owner for a number of years and the service i received by BMW was A class both from the dealer and the manufacturer. Mercedes has really dropped the ball and have a long way to go in order to even come close to BMW. After numerous attempts in trying to get answers especially when i know that the vehicle is not driven hard or harsh. I defiantly will not me saying anything nice regarding Mercedes after treatment i received in endless attempts in finding answers.