Window Glass - Roof: Installation

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Carefully dry fit the roof glass panel to the existing urethane adhesive bead on the body pinch weld. Align the roof glass panel in the opening for a uniform fit.
Use a non-permanent pencil to make alignment marks on the roof glass panel and the body to aid in the installation alignment of the roof glass panel.
Carefully remove the roof glass panel and place on a stable surface.
WARNING: Repair any corrosion found on the pinch weld. The pinch weld is a structural component of the vehicle. Corrosion left unrepaired may reduce the structural integrity of the vehicle. Failure to follow this instruction may result in serious injury to vehicle occupant(s).

NOTE: To make sure the new urethane adhesive bonds correctly to the original equipment urethane adhesive, the roof glass panel must be installed within 2 hours of trimming the original urethane adhesive bead.

NOTE: Avoid scratching the pinch weld. Repair all minor scratches or exposed metal on the pinch weld following manufacturer's instructions. Use the same brand pinch weld primer, glass primer and urethane adhesive.

Using an appropriate tool, trim the urethane adhesive leaving a 1-2 mm (0.04-0.08 in) base of original equipment urethane adhesive on the pinch weld.

Fig 1: Trimming Urethane Using Appropriate Tool
Courtesy of FORD MOTOR CO.
Using a soft brush or vacuum, remove any dirt or foreign material from the pinch weld.
If installing the original roof glass panel, remove the excess urethane adhesive on the glass.
Clean the inside of the roof glass panel surface with glass cleaner.
NOTE: For additional material guidelines, refer to the manufacturer's installation information.

NOTE: Be sure to use the same brand and cure-rate products for the urethane adhesive and glass primer. Do not mix different brands of urethane adhesive and glass primer. For additional information, refer to the Material Chart in this procedure.

If installing a new roof glass panel, apply glass primer according to manufacturer's instructions. Allow at least 6 minutes to dry.
Cut the urethane adhesive applicator tip to specification.

Fig 2: Identifying Urethane Adhesive Applicator Tip Dimension
Courtesy of FORD MOTOR CO.
NOTE: The roof glass panel must be positioned within 10 minutes of applying the urethane adhesive.

NOTE: Use either a high-ratio, electric or battery-operated caulk gun that will apply the urethane adhesive with less effort and continuous bead.

Apply urethane adhesive on top of the existing trimmed urethane adhesive bead on the pinch weld, starting and ending at the rear of the roof opening near the center, making sure there are no gaps in the bead.

Fig 3: Identifying Urethane Adhesive Dimension
Courtesy of FORD MOTOR CO.
WARNING: Do not drive vehicle until the urethane adhesive seal has cured. Follow urethane adhesive manufacturer's curing directions. Inadequate or incorrect curing of the urethane adhesive seal will adversely affect glass retention. Failure to follow these instructions may result in serious injury to vehicle occupant(s).

Carefully install the roof glass panel on the vehicle aligning it with the markings made previously.
- Work the roof glass panel down using only vertical pressure.
After the urethane adhesive has cured, clean the interior and exterior roof glass panel with glass cleaner.