The Cutting Edge
new car installations
2011 Cadillac STS
by Jamie Browning
1. GETTING STARTED:
For vehicle and glass preparations please refer to AGRSS/ANSI 002-2002
as well as your adhesive manufacturer’s recommendations. Inspect the windshield
for defects and look for any distortion.
First, remove the rearview mirror by removing the cover at the base of
the mirror. Next, disconnect the electrical connector and tilt the mirror
to the full upward position to allow easy access to remove the T-15 set
screw. Slide the mirror upward off of the bracket and remove the rain
sensor, if equipped. If the vehicle is equipped with a vehicle direction
alert alarm, disconnect the electrical connector. Use a small, flat screwdriver,
insert it along the top edge in the recessed notches, push in on both
tabs to release and slide upward to remove. To remove the A-pillar covers
(if required) use a panel tool to release the securing clips on each side
and remove the two screw covers. Move to the exterior of the vehicle and
remove the wiper arms by removing the two black caps covering the wiper
nuts, then remove the wiper nuts. Next, use a wiper puller (GM part number
J39822 or equivalent) to remove the wiper arms from the vehicle and note
the driver and passenger side. To remove the air inlet grille (cowl panel)
remove the weatherstrip, three screws and the grille-panel nut, and remove
assembly from the vehicle. Next, remove the side-reveal mouldings by pulling
back the weatherstrip and the five screws retaining the moulding. You
are now ready to start the removal process.
For the sides and top of the windshield, a cold knife or power tool can
be used, as well as wire. For the bottom, a power tool or wire can be
used. Keep in mind that there is not one correct method of removal. The
technician should use the tool with which he feels most comfortable and
the one that achieves a safe removal (both for the vehicle and the technician).
Trim the existing urethane bead, leaving it 1 to 2 millimeters (mm) in
height. Use your adhesive manufacturer’s pinchweld primer to prime all
scratches if any exist and allow for proper drying according to your adhesive
manufacturer’s recommendations. Please note that only the full-cut method
is permitted by the AGRSS/ANSI 002-2002 Standard.
Dry-fit the new windshield and mark it properly to ensure the correct
setting procedure. Prepare the windshield according to your adhesive manufacturer’s
recommendations, and then apply the adhesive and install the windshield.
Cadillac recommends using a tip for the urethane that is cut at a 60-degree
angle and is 10 mm wide and 8 mm tall. Make sure the deck height is correct
and the markings on the windshield line up with those on the body that
were applied during the dry set.
5. FINISHING TOUCHES:
Install the cowl, wipers and mirror in reverse order. Be sure to check
the rain sensor if equipped and wiper operation before returning the vehicle
to the owner. Check for any leaks and be sure to inform the vehicle owner
of the safe drive-away time according to the adhesive manufacturer. Also,
be sure to record all lot numbers from the adhesive, VIN number and primers
as well as the DOT number from the windshield.
Jamie Browning was the gold medalist in the 2009 Pilkington Classic
Auto Glass Technician Olympics.
© Copyright 2012 Key Communications Inc. All rights reserved.
No reproduction of any type without expressed written permission.