Originally Posted by 328idogg
I personally wouldn't use WD-40. The first fix I tried was just using Meguiar's NXT Generation Tech Protectant by itself on the door seals (with nothing on the shadowline trim). The squeaks came back after a couple of days. I think what did the trick was the RejeX on the shadowline trim, but I'm guessing that a high quality auto wax would work as well. I switched to Vinylex on the door seals the second time around, but for no real reason other than to try something different.
Can you post pics? What is the shadow line?
2010 335i xDrive Coupe, Titanium Silver, MSport 6MT
2006 325i Sparkling Graphite Sport Package 6MT Retired
1999 323i Titanium Silver, Sport Package, 5MT Retired