I am using Hyundai Santro (HS) from last 2 years. Well from the very first service my AC has started making noise becoz of AC belt fitted next to engine.
Even after giving for service thrice and complaining more then 100 times those ppl have done nothing. I have even complained to the company they said to take it to service center and they will do it but yet those go on arguing and have not change the belt.
Atlast, I went to local garage person and got it change on my personal expense and problem is solve.
Secondly, car makes noise then we go through bumpy roads.
It is because fixtures inside are not set properly and after complaining for it at service center they told me "yeh toh sabhi gadi main hota hai iske liye hum kuch nahi kar sakte."
And mind well in other cars of santro people do not face the same problem of sound as much as I do.