Whistling noise from rear spoiler (merged)

[Ralegend]

I found the root cause of my disturbing noise problem. The issue was caused by the spoiler. I will add photos of the solution, and I will also contact the service for a resolution. I will update again.

Thank you. Solved.

 

[NLMGSAN]

Does this mean the edges of the spoiler are the cause of the noise?

 

[Coulomb]

Does this mean the edges of the spoiler are the cause of the noise?

That does seem to be the conclusion. Only some spoilers have this problem, at least when new.

 

[Yorkshire Hillbilly]

I'll give this a go on my next long journey. I had that undertray fix done by the dealership but, it didn't stop the noise at all.