Quote:
Originally Posted by bousinou228i
Hello all,
I recently purchased a 228i M Sport with the n26 engine. I love the car! One of my fav BMWs I've owned for sure.
Ive had it for about a month now and there has been two instances on cold-morning starts where about 15-20sec into the start up cycle the exhaust makes a noise similar to the flap in my old 335, only to disappear followed by an electronic sound. (video link below)
It is still under the factory warranty and im wondering if I should make an apt. Have any of you experienced this?
Thanks in advance!
Jason 
https://www.youtube.com/watch?v=dgtT_kB3aeU |
That my friend is more than likely a bad exhaust valve. Take it in for service I believe there is a TSB for it. Had mine replaced under warranty earlier this year for the same issue.