"Pop" like miss fire sound when ever in drive not smooth road

[Bg22g22]

Dear Guys,Good MorningCurrently driving E90, this morning on the way to work I notice there is sound "Pop" like misfire each time I drive into not smooth surface road. Anyone face this problem before?Pls help me.

 

[Spaceman]

issit like the turbo car kinda pop?

 

[Bg22g22]

Hi Spaceman,

I wish my E90 can have that turbo sound. Hahaha... Btw, problem solved. Thanks

 

[dcmy]

how you solve it?

 

[zol2000]

How's the sound gone? Mine have small pop in a dashboard on left side?

 

[astroboy]

MAYBE problem with one of the iridium spark plug, or ignition coil or loose connector. Should be able to tell which plug by doing visual comparison by lining all the plugs together.

Yes, please share with us how u solve it.. many eager warranty lapsed E90 owner here.. :17: