Body - Heated Back Glass Inoperative
NUMBER: JTB00098(ISSUE 1)
MODEL: XK
DATE: 08 MAY 2008
SECTION: 501
Heated Rear Windshield Inoperative - Repair Procedure
AFFECTED VEHICLE RANGE:
XK (X150) Convertible Only VIN: B000001 - Onwards
Model Year: 2007 - Onwards
CONDITION SUMMARY:
Situation:
The rear windshield is bonded to the convertible roof outer cover and is not available as a separate part. A customer may have a concern of one or more of the heater elements being inoperative. A procedure to repair the heater elements has been developed.
NOTE:
Customer damage to the heater elements is not covered under Warranty.
Action:
In the event of a customer concern of the above, follow the Repair Procedure outlined below to repair the rear windshield heater elements.
PARTS
TOOLS:
Midtronics PSC-550 Vehicle Power Supply
WARRANTY
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time. DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
IDENTIFYING FAILED REAR WINDSHIELD HEATER ELEMENTS
CAUTION:
Ensure the roof headliner material, tonneau cover, seats, etc are covered to protect from damage.
1. Open the trunk lid.
2. Manually latch the trunk lid latch in the 'closed' position.
CAUTION:
Ensure the Midtronics PSC-550 Vehicle Power Supply cables do not become trapped.
3. Connect the Midtronics PSC-550 Vehicle Power Supply to the vehicle.
4. Lower the trunk lid to the closed position (but not fully closed).
CAUTION:
The tonneau cover should remain left down / closed during this procedure.
NOTE:
The 'time-out' period for the roof when left in a mid-position (neither fully open nor closed) is approximately 10 minutes. The hydraulic pump valves will switch 'off', allowing the rear section of roof tension bow to fall under its own weight after this time-out period. To prevent this from occurring, the roof open / close switch should be operated to move the roof slightly at least once every nine minutes. If the roof does time-out (the roof will relax to a closed but not latched position) the system can be recovered by:
^ Manually lifting and holding the rear of the roof by hand to its near vertical position. (Figure 1)
^ Operate the roof slightly to reenergize the system.
^ If the vehicle VIN is prior to B22319, the button will have to be held initially for longer than 10 seconds.
5. With the roof in the closed position, press and hold the roof open switch until the rear section of roof (tension bow) reaches its near vertical position. Release the switch before the tonneau cover starts to rise. (Figure 1)
6. Attach the heat sensitive paper (supplied in kit) to the inside surface of the rear windshield. (Figure 2)
^ Ensure all elements are contacting the paper.
7. Start the engine.
8. Switch the rear windshield heater 'on'.
9. Identify failed elements by observing a color change of the heat sensitive paper. (Figure 2)
10. Make note of the position of the failed element(s).
11. Switch the rear windshield heater 'off'.
12. Turn the engine off.
13. Remove the heat sensitive paper.
14. Locate the failure point in the inoperative element(s).
^ If the failure point is close to the side of the glass, detach the inner lining from the rear windshield. (Figure 3)
APPLYING THE ELECTRICALLY CONDUCTIVE PAINT
1. Clean the glass in the area of the failure(s) with an alcohol wipe. (Figure 4)
2. Apply the supplied Teflon tape in 60 mm (2.4 in) lengths to either side of the failed element(s). (Figure 4)
^ The tape should be firmly rubbed on to the glass using a soft cloth (do not touch the glass in the failed area with anything other than a clean cloth after the area has been cleaned) to remove all air bubbles either side of the element.
NOTE:
Shake the bottle of electrically conductive paint thoroughly. The cap of the bottle holds some paint after shaking and is prone to dripping; to prevent this, hold a paper towel around the cap and stem to catch drips.
3. Open the bottle and clean the stem of the brush to prevent drips. (Figure 5)
4. Apply the first of four coats of paint to the damaged element.
^ Each coat must be very thin; this is achieved by blotting the brush before applying paint to the glass.
^ Allow 10 minutes drying time between coat.
^ Do not operate the rear windshield heater until 45 minutes after the last coat is applied.
NOTE:
All repairs should be visually assessed from inside and outside the vehicle to ensure the masking has not been incorrectly carried out, allowing excessive conductive paint to be applied; if excessive paint is evident, it can be removed by carefully using a utility knife.
CAUTION:
Extreme care needs to be taken as not to damage glass or break heater elements if this practice is undertaken.
5. Carefully remove the Teflon tape 10 minutes after the fourth coat has been applied.
CAUTION:
Do not use heavy / abrasive pressure to the rear windshield during cleaning after paint application.
6. After an additional 35 minutes, clean the rear windshield glass.
VERIFYING HEATER ELEMENT REPAIRS
1. Attach the heat sensitive paper to the inside surface of the rear windshield (away from the repaired areas). (Figure 2)
^ Ensure all elements are contacting the paper.
2. Switch on the rear windshield heater.
3. Verify operation of all elements by observing a color change of the heat sensitive paper.
4. Close the convertible top.
5. Open the trunk lid.
6. Release the trunk lid latch by using the interior release switch.
7. Disconnect the Midtronics PSC-550 Vehicle Power Supply.
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