[nealsil]

Hi all, would appreciate to know similar experiences please. Brought my car in today to have the above checked. On deceleration in any mode i can hear a gurgling/popping sound coming from the exhaust. Seems to happen in any drive type I'm in: sport or comfort. Now the gurgling sounds kinda cool but the popping sounds like a back fire to me. So BMW changed all the plugs and when i picked up the car, same sounds, no difference at all. So i met with the foreman of the service center and says he compared the car to another 650 and they both make the same noise. And that he can't find anything wrong with the car. I've read on another forum that this is meant to be or "normal"? I understand the whole throaty aggressive sound of an exhaust thing and i like that but to me this doesn't sound right. Anyone else have experience with this? Btw, i have the M-sport package if that matters.

Thanks everyone!