2009 Nissan Sentra

Windshield and back glass removal and replacement instructions
By Bob Beranek
June 15, 2009
AUTO

Sponsored by Dow Automotive

© 2009 National Glass Association. All rights reserved. Visit GlassMagazine.com for glass removal and replacement instructions for more than 400 vehicles. To sign up to receive the For Technicians Only e-bulletin, email FTO@glass.org

Vehicle type: Four-door sedan

NAGS® numbers*: Windshield part number FW2729 with third visor; back glass FB23377 solar, heated

Helpful tools or supplies: Ford fork mirror tool, molding-release tool

Watch for: There are two different types of cowl retainers on this vehicle: pry up center retainers in the far corners and a push-in style retainer closer to the center of the panel. There are also hidden underside retainers.

*With permission from National Auto Glass Specifications. Call NAGS at 800/551-4012 or visit http://glass.mitchell.com/.

A. Windshield
Preparation

1. Cover the front seats, floorboards, dash and steering wheel with a clean drop cloth or disposable plastic covers. Note: Always wear eye and hand protection when working with glass. Make sure you have the right glass and moldings and that the urethane systems you are about to use are current. Windshield part number is FW2729.

2. Drape the fender with a fender cover and tape up any vulnerable areas on the vehicle to protect against possible damage. Tape up the defroster vents to prevent debris from falling into the openings.

3. To remove the rearview mirror, insert a Ford fork mirror tool between the base of the mirror and the mirror pad, and wiggle the mirror off the pad.

4. Remove the windshield-wiper nut covers.

5. Remove the windshield-wiper nuts using a 14-millimeter wrench or socket. Move the wiper arm in an up-and-down motion to break it loose from the post, or use a wiper-puller. Caution: Wipers can sometimes be hard to remove. To avoid stressing the post, use a wiper-puller.

6. At the base of the pillar molding is a push-in retainer that holds the pillar molding to the cowl. Remove and separate.

7. There are two different types of cowl retainers on this vehicle. Remove the pry-up center retainers in the far corners and the push-in style retainer closer to the center of the panel. Release the hidden underside retainers using your hands and fingers. Remove the cowl panel and set aside in a safe place.

8. The A-pillar molding extends from the fender to the top of the back glass and is held in place with clips. Release the clips using a molding-release tool, or work the molding free from the vehicle’s top clips with your fingers and slide the pillar molding from the clips.

9. The top molding is a wraparound type that will require replacement. Note: Before beginning windshield removal, verify the new windshield is the correct one and the urethanes and primers are current. Never use outdated products as this could jeopardize the structural integrity of the vehicle and the safety of its passengers.

Removal
10. Make sure cutting blades are sufficiently sharp.

11. Before cutting out the windshield, remove contaminants from the glass and pinchweld to prevent contact with the urethane.

12. Use the cutting tools of your choice to remove the glass from the adhesive bead. If you use a power tool, lubricate the cutting area with water. Spray the top and sides; then make your cuts. Caution: Be careful not to hit or cut the gravity stops; mark their location with a marking pencil or retention tape.

13. Take the windshield out of the opening using vacuum cups. Make sure the vacuum cups do not overlap a crack in the glass. Lift the glass and place it on a windshield stand or suitable workstation.

Installation
14. After cutting the windshield out, remove contaminants such as dirt, moisture and debris from the pinchweld. Clean the dashboard.

15. Dry fit the new glass to the opening. Mark your glass using a grease pencil or retention molding tape.

16. Place your vacuum cups on the new windshield in the appropriate location.

17. Set the windshield onto the old urethane.

18. With the windshield resting in the opening, make sure it is in the right spot.

19. Adjust both sides to the correct setting, marking the passenger side, then the driver side. Lift the glass and place it on a windshield stand or suitable workstation.

20. Follow the urethane manufacturer’s recommendations for installation.

21. Clean the inside of the windshield using a urethane manufacturer-recommended product. Do not touch the bonding area of the windshield after cleaning, prepping or priming it.

22. Wear powder-free Nitrile gloves to protect against harsh chemicals.

23. Attach the top molding to the glass edge.

24. Apply the glass prep and primer following the urethane manufacturer’s recommendations.

25. Using the tool of your choice, remove the original urethane bead, leaving 1-2 millimeters of existing urethane on the pinchweld. Make sure there are no contaminants and do not touch the pinchweld after prepping the area.

26. Apply the pinchweld primer only to the areas where needed, and follow the urethane manufacturer’s recommendations. Allow preps and primers to dry as recommended by the urethane manufacturer.

27. Apply a triangular bead of urethane to the same path as the freshly cut urethane on the pinchweld. Before cutting your V-notch, cut the tip off of your nozzle with a nozzle-cutter. With the cut nozzle, measure to the top of the roofline, and at 1/16-inch higher than the roofline, make a mark on the nozzle with a pen or marker. Notch the nozzle up to the marked line; this will give you the appropriate triangular bead.

28. Lift the windshield from the windshield stand or workstation using vacuum cups. Set the windshield on the urethane at the mark you made during your dry fit. Lower the driver’s side of the windshield onto the urethane and line it up with the dry-fit mark; it is now in place.

29. The windshield is now ready to be decked. Press firmly to ensure a good seal.

30. Before re-installing the parts, check for leaks. Use a leak detector to go over the perimeter of the windshield. If you find a leak, apply more pressure or add more urethane to the spot and ensure that the glass makes contact with the wet urethane.

31. Re-install the removed parts in reverse order.

32. Allow the urethane to cure according to the urethane manufacturer’s recommended cure time before returning the vehicle to the customer. Warning: Disregarding the safe drive-away time that your urethane manufacturer recommends could jeopardize the structural integrity of the vehicle and the safety of its passengers.

33. You have completed the removal and replacement of the windshield.

B. Back glass
Removal

1. Make sure you have the right glass. The glass has exposed edges on all sides, and the part number is FB23377.

2. Disconnect the defroster connectors.

3. Cut out the back glass using the tools of your choice. Be careful not to damage the pinchweld; any scratches will be visible.

Installation
4. After cutting the back glass out, remove contaminants such as dirt, moisture and other debris from the pinchweld.

5. Dry fit the new glass to the opening. Mark your glass using a grease pencil or retention molding tape.

6. Place your vacuum cups on the new back glass in the appropriate location.

7. Set the glass onto the old urethane.

8. With the glass resting in the opening, make sure it is in the right spot.

9. Adjust both sides to the correct setting. Lift the glass and place it on a windshield stand or suitable workstation.

10. Follow the urethane manufacturer’s recommendations for installation.

11. Clean the inside of the glass using a urethane manufacturer-recommended product. Do not touch the bonding area of the back glass after cleaning, prepping or priming it.

12. Wear powder-free Nitrile gloves to protect against harsh chemicals.

13. Apply the glass prep and primer following the urethane manufacturer’s recommendations.

14. Using the tool of your choice, remove as much of the original urethane bead as the urethane manufacturer recommends. Make sure there are no contaminants and do not touch the pinchweld after you have prepped the area.

15. Apply the pinchweld primer only to the areas where needed, and follow the urethane manufacturer’s recommendations. Allow preps and primers to dry as recommended by the urethane manufacturer.

16. Apply a triangular bead of urethane to the same path as the freshly cut urethane on the pinchweld. Before cutting your V-notch, cut the tip off of your nozzle with a nozzle-cutter. With the cut nozzle, measure to the top of the roofline, and at 1/16-inch higher than the roofline, make a mark on the nozzle with a pen or marker. Notch the nozzle up to the marked line; this will give you the appropriate triangular bead.

17. Lift the back glass from the windshield stand or workstation using vacuum cups. Set the glass on the urethane at the mark you made during your dry fit. Line it up with the dry-fit marks; it is now in place.

18. The back glass is now ready to be decked. Press firmly to ensure a good seal.

19. Before re-installing the parts, check for leaks. Use a leak detector to go over the perimeter of the glass. If you find a leak, apply more pressure or add more urethane to the spot and ensure that the glass makes contact with the wet urethane.

20. Re-install the removed parts in reverse order.

21. Check the operation of the back glass electrical systems.

22. Allow the urethane to cure according to the urethane manufacturer’s recommended cure time before returning the vehicle to the customer.

23. You have completed the removal and replacement of the back glass.

© 2009 National Glass Association. All rights reserved. Visit GlassMagazine.com for glass removal and replacement instructions for more than 400 vehicles. To sign up to receive the For Technicians Only e-bulletin, email FTO@glass.org

The author is president of Automotive Glass Experts in Sun Prairie, Wis. Write him at bberanek@aol.com.