Sedan Front Window Leaks

[CMBusch]

Hey everybody,

When I acquired my e30 the front windows were supplied but not installed. Since then I've reinstalled the windows and regulators. After washing the car, I can see that the front doors are leaking in from the windows and pooling inside the door. However, the rear windows weren't leaking at all. I've since replaced the front window seals, but they still continue to leak. They leak less than before, but it's still enough to be an issue. Most of the water is coming in from where the seal meets the mirror even thought there is no gap between them. Have any of you had this issue? If so how did you fix it? Any help would be greatly appreciated.

[MrBurgundy]

Just look over the seals, because that what seals the window.

Check the weather strip on the bottom of the window, and then the seal around the side mirror.

[CMBusch]

Just look over the seals, because that what seals the window.

Check the weather strip on the bottom of the window, and then the seal around the side mirror.

Right, I replaced those seals already. Technically I think it's called a weather strip. It's the bit of rubber/metal between the outside of the door and the window that runs from the B-pillar to the mirror. I just can't seem to find any gaps where the water could go through. I've taken it apart to see if I installed them wrong but I still have the same issue.