sound coming off during take off

somebody please help.207 1.4 i have a diesel vehicle and after the departures & nbsp; although it doesn't always do it & nbsp; it sounds like a strange sound is like someone said it is a pressure pad but i made it 3 months ago. It makes this sound between 200 rpm, but when it accelerates, it doesn't

I don't think the filter will make a sound.

can be from the exhaust system. I say look at the last silencer. I had the same problem for 6 months. I changed the last silencer today. problem is solved.