Method II

Use a rear window defroster service kit to repair pigtail connections and grid line breaks.

The service kit is available from:
Marketing East Company
10 Liberty Street
North Andover, Massachusetts 01845
Telephone: (508) 689-9565

Any break in the grid longer than 25 mm (1 inch) cannot be serviced. The back window glass must be replaced. For breaks less than 25 mm (1 inch) long, use this procedure:

Surface Preparation
1. Bring the vehicle inside and warm it to 16°C (60°F) or above.
2. Clean entire grid line repair area with Ultra-Clear Spray Glass Cleaner E4AZ-19C507-AA or equivalent meeting Ford specification ESR-M14P5-A to remove all dirt, wax, grease, oil or other foreign matter. It is important that repair area be clean and dry.

CAUTION: Do not use scrapers, sharp instruments or abrasive cleaners on the interior surface of the back window glass as this may cause damage to the grid lines.

Application







1. Mark location of break on outside of back window glass.
2. Place masking tape (provided in kit) over break in grid wire, aligning holes in masking tape with grid wire.
3. Prepare service kit two-part epoxy.
a. Check expiration date of package. If hardener has crystallized, place package in hot water until the hardener softens.
b. Remove plastic clamp from package separating resin and hardener.
c. Knead package until resin and hardener are thoroughly mixed.
d. Cut corner of package to open.







4. Apply two-part epoxy, with stick provided, to wire grid break through cut-out in masking tape.
5. Carefully remove masking tape from grid wire repair area.







6. Using Rotunda Heat Gun 107-R0300 or equivalent, heat grid wire repair area for one to two minutes.

NOTE: Care should be taken while using heat gun around interior trim.

7. Start engine, turn heated back window switch and light on, and leave on for five minutes. Inspect grid wire repair area.

NOTE: Heated back window is now operational. Two-part epoxy will thoroughly cure in 24 hours.