I've been going through the same thing with e39. I found a loose
window guide rail on the door and secured it, this helped a bit. I
put silicon on the seals and this helped a few days then rattles came
It's the door seals! There's no other way to get rid of the rattling
except changing door seals. I'm getting them for $75 per seal - each
door requires 2 kinds of seals.
Thanks for the reply Oskar!
Somebodty told me that - there can be some loose bolts in the locking
mechanism - known issue with the e46 - but it seems a lot of work to
strip the door - especially with airbags.
BMW doors are the most over-engineered doors I've ever seen!!
To me working on the doors is almost like a bad dream. There was a
time I enjoyed working on cars, that all went away with BMW autos!
I take car to a good mechanic (independant - I really have hard time
I hope you find a good independant mechanic near you.
These sort of things can have very mundane explanations. I had a strange
tinkling noise in the rear at certain speeds when accelerating in an earlier
735i. This went on for months before I eventually discovered that it was
the loose tip cup on an umbrella on the rear parcel shelf! :-}
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