[Harry Da Hamster]

My car sounds like a diesel. The rattling/tapping sorta faint but i especially notice it in the morning in my parking stall which is right next to a wall which probably amplifies the sound. From what i read, it's most likely the wastegate rattle. At this point i would consider it a very slight nuisance and it doesn't bother me much but knowing that it will probably get worse i would rather take care of it sooner than later. So my question is what does BMW consider in/out of tolerance for the wastegate rattle. Will the service advisor look at me like a douche bag for such slight rattle?

[fun2drive]

You have no issue taking this to the dealer. If you can hear they can hear it. Whether it is sufficient to have it replaced no one can say but I really doubt they will question you and maybe they can explain what is acceptable...

[335BBS]

Originally Posted by FNG

My car sounds like a diesel. The rattling/tapping sorta faint but i especially notice it in the morning in my parking stall which is right next to a wall which probably amplifies the sound. From what i read, it's most likely the wastegate rattle. At this point i would consider it a very slight nuisance and it doesn't bother me much but knowing that it will probably get worse i would rather take care of it sooner than later. So my question is what does BMW consider in/out of tolerance for the wastegate rattle. Will the service advisor look at me like a douche bag for such slight rattle?

They ALL rattle at start up. Thats not wastegate rattle. I gather that occurs at higher rpm.

[328i M-Sport]

It might be considered okay if you only hear the rattle right after a cold startup. But if you can hear it after driving a few miles, take it to the dealership.