When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Wondering if anyone else has a very small gap where the drivers front window meets the rubber strip or if anyone has pic of this area with the window down or door open to see what's off for my car.
FWIW, I have a 2017 C7Z
No rain or anything comes in the gap, but I do get some wind noise, and I'm just trying to figure out if something is misfit, or how to best fix this.
Do the dollar bill test. Standing outside lay a bill at that spot against the seal so it will be 1/2 inside and 1/2 outside and close the door. Pull on the bill from outside. You want to feel a slight drag. You can use any paper but bills are pretty strong so easier to check multiple spots w/o needing a new piece of paper.
Nextzett makes a rubber conditioner/UV protectant named Gummi Pflege Stift. Made in Germany. It works really well with a built-in applicator and leaves the rubber feeling silky smooth.
Convert side windows do drop down and back up fully just a bit as part of a full top down/ top up cycle. Window may not have returned to the full up position last time you dropped the top. It happens. Might want to recheck that by running a complete top down/ top up cycle.
Here's a close up. In looking it appears my window striping may end a little soon. Is this correct? The gap is pretty visible.
I've indexed the windows and ran the top up and down a few times. It's been there the whole time I've had the car.
front window gap
Here are two close-ups of the same area on my 2017. It looks to me as if your weatherstripping has been damaged. 
