Back Window Glass: Service and Repair

REMOVAL

WARNING: SAFETY GLASSES AND GLOVES MUST BE WORN TO PREVENT PERSONAL INJURY.

NOTE: Use care not to scratch the pinch weld.

1. Remove the outer lip of the molding using a utility knife.
2. Cut the back window glass away from the urethane using a cold knife.
- Lift the luggage compartment door to cut along the bottom of the back window glass.
- Cut the back window glass away from the urethane using a cold knife.







3. Remove the back window glass using a suitable suction tool.

NOTE: Use a long knife to cut any remaining urethane stringers.







4. Trim the urethane on the pinch weld.

NOTE: Clean around the pinch weld area to remove any dirt or debris that could contaminate the existing urethane once it is trimmed.

5. Inspect the pinch weld for damaged metal, rust or foreign objects. Repair the pinch weld as necessary.

NOTE: To avoid rust formation, take extreme care not to scratch or otherwise damage the pinch weld.

INSTALLATION
1. Apply urethane metal primer WSB-M2G234-C or equivalent to any exposed or damaged metal on the pinch weld.

NOTE: A minimum of 10 minutes is required for the primer surface to dry.

2. Place the back window glass inside up on a low, stable work surface.

NOTE: If a new back window glass is to be installed, attach the new molding to the edge of the glass starting at the top center, then working out, then down pillars and around the corners.

3. Clean the back window glass with a non-alcohol based window cleaner.
4. Apply the Urethane Glass Prep WSB-M5B280-C or equivalent to the back window glass inside edges.
- Apply the Urethane Glass Prep WSB-M5B280-C or equivalent to the back window glass inside edges 21 mm (0.8 Inch) wide along top and sides and 70 mm (2.75 Inch) wide along the bottom.
- Wipe the back window glass where the Urethane Glass Prep WSB-M5B280-C or equivalent has been applied.
- Repeat the application in Steps 1 and 2.

NOTE:
- Wipe off the Urethane Glass Prep WSB-M5B280-C or equivalent immediately after application because it flash dries. Two coats of the Urethane Glass Prep WSB-M5B280-C or equivalent must be applied.
- Use a clean wool applicator to apply the Urethane Glass Prep WSB-M5B280-C or equivalent.

5. Align the back window glass to the body.
- Place the back window glass on the pinch weld.
- Center the back window glass in the opening.
- Adjust the glass stops.
- Mark the back window glass alignment on the glass and the body with tape or a grease pencil.
6. Remove the back window glass.
7. Apply the Urethane Glass Primer WSB-M2G314-B or equivalent to the inside edges of the back window glass 21 mm (0.8 Inch) wide along top and sides and 70 mm (2.75 Inch) wide along the bottom.

NOTE:
- Urethane Glass Primer WSB-M2G314-A or equivalent must be mixed thoroughly for even pigmentation.
- Urethane Glass Primer WSB-M2G314-A or equivalent must cure for a minimum of five minutes.







8. Apply an even bead of Urethane Adhesive WSB-M2G316-B or equivalent around the entire sheet metal flange on top of the existing bed of urethane. The bead should be approximately 8 mm (.314 Inch) at the base and 14 mm (.55 Inch) high and triangular in shape.

NOTE: The back window glass must be installed before the adhesive skins over.







9. Install the back window glass on the pinch weld. Align the back window glass to the body using the alignment marks.

CAUTION: When replacing urethane-installed parts, do not drive the vehicle until the urethane has cured. At 21°C (70°F) and relative humidities above 50%, adequate cure time is typically 24 hours (less at higher temperature and higher humidities). See detailed instructions provided by the urethane manufacturer. Inadequate or improper curing can adversely affect the retention of the back window glass.

10. Inspect the back window glass for air or water leaks through the urethane.