[bmw1987]

Can anyone identify what might be causing this intermittent whistling under acceleration on 2017 340i with relatively low milage (30K)?

8 Speed auto, run flat tyres.

Thank you.

Link to videos - https://drive.google.com/drive/folde...6E?usp=sharing

[toxik]

if it's happening under load I'd assume it could be a slight air/boost leak. do you have any way of doing a smoke test? maybe theres a hole or crack in your charge pipe somewhere.

[bmw1987]

Originally Posted by toxik

if it's happening under load I'd assume it could be a slight air/boost leak. do you have any way of doing a smoke test? maybe theres a hole or crack in your charge pipe somewhere.

Thanks for the info - I’m taking it to get the charge pipe checked out tomorrow.

Regards.