when i first bought my car i would hear like a tractor noise coming from the engine as if something was clicking, it would happen once in a while but now it seems like it happens more often. is this the timing chain problem if so does my maitenance warranty cover the fix?????????

 

What year is your Mini?
Does it sound like rocks bouncing around in the upper left part of the motor?
How many miles on the car?
Is it still under warranty? If yes, then I'm sure your warranty will cover it.
Did you compare the sound with some of the videos out there?