Mahindra And Mahindra — I am complaining about tuv300 t6+

Address:

Mumbai City, Maharashtra, 400084

I have purchased tuv 300 t6+ from infinity autolinks vikroli on 21st february 2016. Vehicle registration number mh03 cb 1943.
Gave it for the first service when i got the car back post servicing there was a vibrating noise coming from the engine.
When i took it back to the service centre in chunabatti i was told that the car needs to be daignosed to know the problem and it would take a day to do so.
As i need vehicle for my daily travelling hence i persued and the staff did the work and gave it back in matter of 4 hours. I appriciate that.
The major concern is that in matter of 03months if the parts need to be changed in a brand new purchased vehicle then what about the long run.