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ok, here we go
1. Mine has a whistle noise(like a plane taking off) at A pillar, when driving around 55~60mph, and only at this speed range. its so annoying !
2. front passenger side vent noise. I can't locate where the noise is, inside or outside, I've tried to clean up the area next to engine bay vent, didn't work.
The sound goes up when you speed up.
3. after I installed my front lip and splitters, noise seems coming from the HVAC area(not sure), a high frequency wind noise... hope its not caused by the lip ...
First, I didnt expect that m340i is a quiet car until I had a g20 330i loaner from the dealership when I sent it to service, that 330i is deadly quiet on highway or city...
Now I doubt my life...
What can I do with this car...
Worst thing is I own it ...
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