Ford Fiesta: Glass, Frames and Mechanisms / Rear Quarter Window Glass - 4-Door. Removal and Installation

Special Tool(s) / General Equipment

	300-AST1770E Deluxe Air Knife
	AST405

Materials

Removal

NOTE: LH shown, RH similar.

1. Refer to: C-Pillar Upper Trim Panel - 4-Door (501-05 Interior Trim and Ornamentation, Removal and Installation).
   

1. NOTE: Locating pins need to be cut through in order to remove the rear quarter window glass. The new rear quarter window glass will be equipped with new locating pins.

   NOTE: Some resistance may be encountered when cutting through the glass locating pins.

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   NOTICE: To avoid rust formation, use extreme care not to scratch the paint or primer or otherwise damage the pinch weld during glass removal.

   NOTE: Lubricate the urethane adhesive with water to aid the Deluxe Air Knife 300-AST1770E when cutting.

   Working from inside the vehicle, cut the urethane adhesive starting at the top center and working toward the bottom corners then across the bottom and remove the rear quarter window glass.
   Use Special Service Tool: 300-AST1770E  Deluxe Air Knife.

Installation

1.   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: 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.

   NOTE: Touching the adhesive surface impairs rebonding.

   NOTE: Make sure the mating surfaces are clean and free of foreign material.

   • Using a utility knife, trim the urethane adhesive leaving a 1-2 mm (0.04-0.08 in) base of original equipment urethane adhesive on the pinch weld.
     
   • Using a soft brush or vacuum, remove any foreign material or dirt from the pinch weld.
     

1. If installing the original rear quarter window glass, use a utility knife to visually inspect and remove remaining urethane adhesive from the glass leaving a thin layer to bond with the new urethane adhesive bead.
   

1. Clean the inside of the new rear quarter window glass with glass cleaner.
   Material: Motorcraft® Ultra-Clear Spray Glass Cleaner / ZC-23 (ESR-M14P5-A)

1. NOTE: 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 rear quarter window glass, apply glass primer according to manufacturer's instructions. Allow at least 6 minutes to dry.
   Material: Dow Urethane One Step Glass Primer / Betaprime™ 5500/5500A/5500SA
   Material: Sika Urethane Metal and Glass Primer / Sika 206 G+P

1. Cut the urethane adhesive applicator tip to specification.
   Material: Sika® SikaTack® MACH 60 / Sika® SikaTack® MACH 30 / Dow® BETASEAL™ Express
   Material: Sika Tack ASAP Urethane Adhesive

1. NOTE: Position the rear quarter window glass within 10 minutes of applying the urethane adhesive.

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

   Apply urethane adhesive to the outside edges of locating pins on the rear quarter window glass.
   Use Special Service Tool: AST405.
   Material: Sika® SikaTack® MACH 60 / Sika® SikaTack® MACH 30 / Dow® BETASEAL™ Express
   Material: Sika Tack ASAP Urethane Adhesive

1. The new urethane adhesive bead applied must be 14 mm (0.551 in) high and 8 mm (0.314 in) wide.
   Material: Sika® SikaTack® MACH 60 / Sika® SikaTack® MACH 30 / Dow® BETASEAL™ Express
   Material: Sika Tack ASAP Urethane Adhesive

1. NOTE: Position the rear quarter window glass within 10 minutes of applying the urethane adhesive.

   Apply a bead of urethane adhesive starting at the middle of the door jamb side and work around to the rear quarter window glass to specification, making sure there are no gaps in the bead.
   Use Special Service Tool: AST405.
   Material: Sika® SikaTack® MACH 60 / Sika® SikaTack® MACH 30 / Dow® BETASEAL™ Express
   Material: Sika Tack ASAP Urethane Adhesive

1. NOTICE: The door windows must be left open during the adhesive curing time.

   Use tape to secure the rear quarter window glass in the correct position until the adhesive has cured.
   

1.   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).

   After the urethane adhesive has cured, check the rear quarter window glass seal for air or water leaks through the urethane adhesive bead and add urethane adhesive as necessary.
   

1. If necessary, remove excess urethane adhesive from the exterior surface of the rear quarter window glass.
   Material: Motorcraft® Ultra-Clear Spray Glass Cleaner / ZC-23 (ESR-M14P5-A)

1. Refer to: C-Pillar Upper Trim Panel - 4-Door (501-05 Interior Trim and Ornamentation, Removal and Installation).