i'm just a litte uncomfortable about it
and want to be sensible enough to investigate early.
the sound is like oily metal hitting.
it's boldest if i accelerate from 80 to 90 km/h. then, i can feel it in my seat.
it is more silent when i don't accelerate or drive at other speeds.
what could i check ?
it has been going away by itself
after about a month of occasional driving.