u/zsemba

Chasing the Garage Infinity AE86 in my GD3 1.5S at Gunsai 😅

Had water showing up on the right A-pillar during a 6-hour drive in heavy rain.

I’ve seen this on GD Fits before (usually trunk/spare tire area), and in my case it turned out to be the same root cause: cracked factory seam sealer along the roof seam.

Removed the roof moulding and found a crack running from the windshield area toward the middle of the roof.

-Removed moulding
-Cleaned seam with toothbrush + isopropyl alcohol
Masked the area
-Applied a very thin bead of polyurethane seam sealer into the crack (avoiding silicone as per my friend in the auto glass industry, and don’t cake too much on where the circular hooks are for the mouldings)
-Used a damp soapy cloth to push it into the seam and level it out (too tight for a finger)
-Cured for 48 hours before reinstalling trim
-So far, no more leak.

Posting in case it helps other GD owners most posts I’ve seen for this area is for GE/GK sunroof leaks, but this is a different failure point, but a common one for these cars.

Classic case of GD fit and a tube of caulking lol